Taurus 97 Diagnostico Electronico

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AUTO TRANS DIAGNOSIS - AX4N CONTROLS

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1997 Ford Taurus

ARTICLE BEGINNING

1997- 98 AUTOMATI C TRANSMI SSI ONS

AX4N El ect r oni c Cont r ol s

Cont i nent al , Sabl e, Taur us, Taur us SHO

* PLEASE READ THIS FIRST *

NOTE: For AX4N t r ansaxl e mechani cal t est i ng and r epai r , see For d AX4N over haul ar t i cl e.

NOTE: To ensure AX4N appl i cat i on, t r ansaxl e may be i dent i f i ed by AX4N st amped on si de cover .

INTRODUCTION

The f i r st st ep i n di agnosi ng any dr i veabi l i t y pr obl em i sver i f yi ng the cust omer ' s compl ai nt wi t h a t est dr i ve under t hecondi t i ons t he pr obl em r epor t edl y occur r ed. Bef or e ent er i ng sel f -di agnost i cs, per f or m a car ef ul and compl et e vi sual i nspect i on. Mostt r ansmi ssi on cont r ol pr obl ems r esul t f r ommechani cal br eakdowns orpoor el ect r i cal connect i ons.

NOTE: Per f orm al l vol t age t est s wi t h a Di gi t al Vol t - Ohmmeter ( DVOM) wi t h a mi ni mum 10- megohm i nput i mpedance, unl ess st ated ot her wi se i n t est pr ocedur e.

DESCRIPTION & OPERATION


I nput si gnal s f r om sensor s ar e sent t o t he Power t r ai n Cont r olModul e ( PCM) . The PCM cont r ol s shi f t or conver t er cl ut ch appl i cat i on.The PCM can al so deter mi ne l i ne pressure needed t o opt i mi ze shi f tf eel . Fi ve el ect r oni c sol enoi ds accompl i sh t he f ol l owi ng f unct i ons:

* 3 On/ Of f sol enoi ds f or shi f t i ng. * One Pul se- Wi dth Modul ator ( PWM) sol enoi d f or Tor que Conver t er

Cl ut ch ( TCC) cont r ol . * One El ect r oni c Pr essur e Cont r ol ( EPC) sol enoi d f or l i ne pr essur e cont r ol .

PCM has bui l t - i n sel f - di agnosi s, f ai l - saf e code and war ni ngcode di spl ay f or t he mai n i nput sensors and sol enoi d val ves.

PCM LOCATION

PCM LOCATI ON

Friday, November 25, 2005 03:19PM Page 1 2000 MRIC and Snap-on Tools Company


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Model Locat i on

Cont i nental , Sabl e & Taurus . . . . . . . . . . . . . . . . . . . . . Rt . Si de Of Engi ne Compart ment , I n Cowl .

INPUT SENSORS

Ai r Condi t i oni ng Cl ut ch ( A/ C Cl ut ch) On f act or y i nst al l ed A/ C system, PCM r ecei ves si gnal vol t agef r om A/ C Cl ut ch swi t ch i ndi cat i on t hat t he ai r condi t i oni ng compr essorcl ut ch i s engaged. The PCM uses the A/ C Cl ut ch swi t ch si gnal t o adj ustl i ne pr essur e t o compensat e f or addi t i onal engi ne l oad. I f t he A/ CCl ut ch swi t ch f ai l s wi t h cl osed cont acts, l i ne pr essur e wi l l besl i ght l y l ow wi t h ai r condi t i oni ng of f . I f t he A/ C Cl ut ch swi t ch f ai l s

wi t h open cont act s, l i ne pr essur e wi l l be sl i ght l y hi gher wi t h ai rcondi t i oni ng on.

NOTE: Br ake On/ Of f ( BOO) swi t ch may al so be known as Br ake Pedal Posi t i on ( BPP) swi t ch.

Br ake On/ Of f ( BOO) Swi t ch The PCM r ecei ves a si gnal f r omt he BOO swi t ch when t he brakeswi t ch i s operated. Tor que conver t er cl utch i s di sengaged when br akesar e appl i ed. Mal f unct i oni ng swi t ch wi l l af f ect t or que conver t eroper ati on.

Cr ankshaf t Posi t i on ( CKP) Sensor & El ect r oni c I gni t i on ( EI )

The CKP sensor sends cr ankshaf t posi t i on i nf or mat i on t o t hePCM. Si gnal r ecei ved by t he PCM af f ect s l i ne pr essur e, shi f tschedul i ng, t orque conver t er cl ut ch and WOT shi f t cont r ol . Engi nespeed si gnal mal f unct i on may r esul t i n harsh engagement s, harshshi f t s, no TCC l ock- up and/ or l at e WOT shi f t s.

Engi ne Cool ant Temper ature ( ECT) Sensor Engi ne t emperat ur e si gnal i s sent t o PCM. Mal f unct i oni ng ECTwi l l af f ect t or que conver t er cl ut ch oper at i on.

I nt ake Ai r Temperat ur e ( I AT) Sensor The I AT sensor moni t ors i ntake ai r t emperature and sendssi gnal t o PCM t o adj ust ai r / f uel mi xture and EPC pr essur e. I AT sensor

mal f uncti on wi l l af f ect EPC pr essur e causi ng f i r m or sof t shi f t s.

Mass Ai r Fl ow ( MAF) Sensor The MAF si gnal i s used f or El ect r oni c Pr essur e Cont r ol ( EPC) ,shi f t and TCC oper ati on and MAF mal f unct i on wi l l af f ect t hese ar eas.

Transmi ssi on Cont r ol Swi t ch ( TCS) & Transmi ssi on Cont r ol I ndi cat or Li ght ( TCI L) Swi t ch i s mount ed on shi f t l ever handl e. Swi t ch sends asi gnal t o PCM. The PCM t ur ns on TCI L and t oggl es Shi f t Sol enoi d 3



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( SS3) , di sabl i ng 4t h gear . Mal f unct i on of swi t ch wi l l cause l ack of4t h di sabl e f unct i on.

Transmi ssi on Fl ui d Temper ature ( TFT) Sensor The TFT sensor i s l ocat ed on sol enoi d val ve body. The PCMmoni t or s vol t age acr oss t he TFT t hermi st or t o det er mi ne t r ansaxl ef l ui d t emper at ur e. Dependi ng on t emperat ur e, PCM cont r ol s l i nepr essure, shi f t schedul i ng and TCC oper ati on. Mal f unct i on of sensorwi l l cause i ncor r ect l i ne pr essur e and possi bl e l ack of TCC oper at i on.

Thr ot t l e Posi t i on ( TP) Sensor The TP sensor i s a pot ent i ometer mounted t o t he engi net hr ot t l e body. The PCM r ecei ves a si gnal f r om TP sensor r el ayi ngt hr ot t l e pl at e posi t i on. TP sensor f ai l ur e wi l l cause PCM t o oper at ei n f ai l saf e mode and rai se l i ne pr essure to pr event t r ansaxl e damage.Thi s condi t i on wi l l r esul t i n harsh engagements, f i r m shi f t f eel ,

abnormal shi f t schedul e and TCC not engagi ng or cycl i ng. Transmi ssi on Range ( TR) Sensor The TR sensor i s an anal og t ype on 1997 model s and 1998 3. 0L( 4V) and SHO model s. Di gi t al t ype sensor i s i nstal l ed on 1998 model sexcept 3. 0L ( 4V) and SHO model s. The PCM moni t ors a seri es of st epdown resi st or s i n TR sensor t hat act as a vol t age di vi der . The vol t agesi gnal cor r esponds wi t h posi t i on of t r ansaxl e r ange sel ect or l ever .The TR sensor al so cont ai ns neut r al / st ar t and backup l i ght ci r cui t s.Mal f unct i on of TR sensor may cause har sh engagement s and f i r m shi f tf eel . I mpr oper shi f t i ng or shi f t sel ect i on and no engi ne cr anki ng mayal so resul t .

Tur bi ne Shaf t Speed ( TSS) Sensor The TSS i s a magnet i c pi ckup t hat sends t urbi ne shaf t speedsi gnal t o PCM. Mal f unct i on of sensor may cause harsh engagement s ofshi f t s. Lack of 4t h gear or no engi ne br aki ng i n 2nd or 3r d gear mayresul t .

Vehi cl e Speed Sensor ( VSS) The VSS i s a magnet i c pi ckup t hat sends out put speed si gnalt o t he PCM. Mal f unct i on of sensor may cause harsh engagement s ofshi f t s. Lack of 4t h gear , TCC l ock- up, or engi ne br aki ng i n 2nd or 3r dgear may r esul t .

OUTPUT DEVICES

El ect r oni c Pressur e Cont r ol ( EPC) Sol enoi d The EPC sol enoi d r ecei ves si gnal f r om t he PCM t o cont r ol l i nepr essur e and backout val ve f uncti on. I f EPC f ai l s, t r ansaxl e i soper at ed i n f ai l - saf e mode. Li ne pr essur e i s at maxi mum psi . Har shengagement s and shi f t s wi l l r esul t .

Sol enoi d Val ve Body Assembl y 1) The sol enoi d val ve body assembl y cont ai ns El ect r oni cPr essur e Cont r ol ( EPC) sol enoi d, Shi f t Sol enoi d No. 1 ( SS1) , Shi f t



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Sol enoi d No. 2 ( SS2) , Shi f t Sol enoi d No. 3 ( SS3) and Tor que Conver t erCl ut ch ( TCC) sol enoi d. The shi f t sol enoi ds are used f or el ect r oni cshi f t schedul i ng. See SOLENOI D OPERATI ON TABLE.

SOLENOI D OPERATI ON TABLEGear Posi t i on SS1 SS2 SS3

Par k . . . . . . . . . . . . . . . . . . . . Of f . . . . . . . . . . On . . . . . . . . . . . . . . . . Of f Rever se . . . . . . . . . . . . . . . . . Of f . . . . . . . . . . On . . . . . . . . . . . . . . . . Of f Neut r al . . . . . . . . . . . . . . . . . Of f . . . . . . . . . . On . . . . . . . . . . . . . . . . Of f Over dr i ve OD1 . . . . . . . . . . . . . . . . . . . . Of f . . . . . . . . . . On . . . . . . . . . . . . . . . . Of f OD2 . . . . . . . . . . . . . . . . . . . . Of f . . . . . . . . . Of f . . . . . . . . . . . . . . . . Of f OD3 . . . . . . . . . . . . . . . . . . . . . On . . . . . . . . . Of f . . . . . . . . . . . . . . . . . On OD4 . . . . . . . . . . . . . . . . . . . . . On . . . . . . . . . . On . . . . . . . . . . . . . . . . . On

"D" D1 . . . . . . . . . . . . . . . . . . . . . Of f . . . . . . . . . . On . . . . . . . . . . . . . . . . Of f D2 . . . . . . . . . . . . . . . . . . . . . Of f . . . . . . . . . Of f . . . . . . . . . . . . . . . . Of f D3 . . . . . . . . . . . . . . . . . . . . . . On . . . . . . . . . Of f . . . . . . . . . . . . . . . . Of f "2" "2" . . . . . . . . . . . . . . . . . . . . Of f . . . . . . . . . Of f . . . . . . . . . . . . . . . . Of f "3" ( 1) . . . . . . . . . . . . . . . . . On . . . . . . . . . Of f . . . . . . . . . . . . . . . . Of f "1" "1" . . . . . . . . . . . . . . . . . . . . Of f . . . . . . . . . . On . . . . . . . . . . . . . . . . Of f "2" ( 1) . . . . . . . . . . . . . . . . Of f . . . . . . . . . Of f . . . . . . . . . . . . . . . . Of f "3" ( 1) . . . . . . . . . . . . . . . . . On . . . . . . . . . Of f . . . . . . . . . . . . . . . . Of f

( 1) - Tr ansmi ssi on wi l l not downshi f t f r om hi gher gear unt i l vehi cl e

speed dr ops bel ow cal i br ated speed.

2) When shi f t sol enoi d i s al ways of f , f ai l ur e coul d be due t ot he PCM and/ or vehi cl e wi r i ng mal f unct i on, and/ or sol enoi d st uck i nof f posi t i on el ectr i cal l y, hydraul i cal l y or mechani cal l y. For shi f tsymptoms, see Fi g. 1. 3) When shi f t sol enoi d i s al ways on, f ai l ur e coul d be due t ot he PCM and/ or vehi cl e wi r i ng mal f unct i on, and/ or sol enoi d st uck i n onposi t i on el ectr i cal l y, hydraul i cal l y or mechani cal l y. For shi f tsymptoms, see Fi g. 2.



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Fi g. 1: Shi f t Sol enoi d Al ways Of f Fai l ur e Char t sCour t esy of Ford Motor Co.



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Fi g. 2: Shi f t Sol enoi d Al ways On Fai l ur e Char t sCour t esy of Ford Motor Co.



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Torque Convert er Cl ut ch ( TCC) Sol enoi d The TCC r ecei ves si gnal f r omt he PCM. The TCC cont r ol sappl i cat i on, modul at i on and r el ease of t or que conver t er cl ut ch. I fsol enoi d f ai l s i n ON posi t i on, vehi cl e engi ne wi l l r un r ough ( shudder )and engi ne st al l s i n Dr i ve at l ow i dl e speeds ( 2nd, 3r d or 4t h gear ) .I f sol enoi d f ai l s i n OFF posi t i on, t or que conver t er cl ut ch wi l l notengage.

PRELIMINARY INSPECTION

VISUAL INSPECTION

Vi sual l y i nspect al l el ectr i cal wi r i ng, l ooki ng f or chaf ed,st r et ched, cut or pi nched wi r i ng. Check f or non- f act or y i nst al l edequi pment wi r ed i nt o t r ansaxl e or PCM har ness. Ensur e el ect r i cal

connect or s f i t t i ght l y and are not cor r oded. Ensure vacuum hoses ar epr oper l y rout ed and ar e not pi nched or cut . I nspect ai r i nduct i onsyst emf or possi bl e vacuum l eaks. Check PCM, sensors and act uat or s f orphysi cal damage. Check engi ne cool ant l evel . Check t r ansmi ssi on f l ui dl evel and condi t i on.

NOTE: For engi ne- r el ated DTCs, see appropr i ate G - TESTS W/ CODES art i cl e i n ENGI NE PERFORMANCE sect i on. DTCs t hat pert ai n t o engi ne per f ormance must be r epai r ed f i r st , as engi ne per f ormance and r el at ed component si gnal s wi l l af f ect t r ansmi ssi on oper at i on and di agnosi s.

SELF-DIAGNOSTIC SYSTEM

DIAGNOSTIC FORMATS

QUI CK TEST and PI NPOI NT TESTS are di agnost i c f ormat s used t ot est and servi ce EEC- V syst em. QUI CK TEST al l ows t echni ci an t oi dent i f y pr obl ems and ret r i eve Di agnost i c Troubl e Codes ( DTCs) .PI NPOI NT TESTS check ci r cui t s and sol enoi ds of t r ansaxl e syst em. Bef or e st art i ng any PI NPOI NT TEST, f ol l ow al l st eps underQUI CK TEST t o f i nd cor r ect PI NPOI NT TEST. I f vehi cl e passes QUI CK TESTand no dr i veabi l i t y sympt oms or i nt er mi t t ent f aul t s exi st , EEC- Vsyst em i s okay.

DIAGNOSTIC TROUBLE CODES (DTCs)

Dur i ng QUI CK TEST, 3 t ypes of di agnost i c t r oubl e codes arer et r i eved: KOEO, KOER and Cont i nuous Memor y codes. See QUI CK TEST f orsel f - t est pr ocedur es. Codes may be cl ear ed f r omPCM memory af t er t heyhave been recor ded or r epai r ed. See CLEARI NG CODES.

KOEO & KOER Codes ( Har d Faul t s) These codes i ndi cat e f aul t s ar e pr esent at t i me of t est i ng. Ahard f aul t may cause CHECK ENGI NE or Mal f unct i on I ndi cator Li ght ( MI L)



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t o go on and r emai n on unt i l f aul t i s r epai r ed. I f KOEO or KOER codesare r et r i eved dur i ng KOEO SELF- TEST or KOER SELF- TEST, use CODEREFERENCE TABLE to f i nd cor r ect t est i ng and r epai r pr ocedures.

Cont i nuous Memory Codes ( I nt ermi t t ent Faul t s) These codes are used t o di agnose i ntermi t t ent probl ems.Cont i nuous Memory Codes are ret r i eved af t er KOEO SELF- TEST. Thesecodes i ndi cate a f aul t t hat may or may not be pr esent at t i me oft esti ng. Af t er not i ng and/ or r epai r i ng f aul t , cl ear codes f r om memor y.See CLEARI NG CODES. I ntermi t t ent f aul t s may be caused by a sensor ,connect or or wi r i ng- r el at ed pr obl em.

CAUTI ON: Cont i nuous Memory Codes shoul d be recorded when r et r i eved. These codes may be used t o i dent i f y i nt ermi t t ent pr obl ems t hat exi st af t er al l KOEO and KOER codes have been r epai r ed.

Some Cont i nuous Memory Code f aul t s may not be val i d af t er KOEO and KOER codes ar e ser vi ced.

RETRIEVING CODES

Faul t codes ar e r et r i eved f r om EEC- V syst emt hr ough Data Li nkConnect or ( DLC) . DLC i s l ocated bel ow i nst r ument panel , t o ri ght ofst eer i ng wheel . Sel f - di agnost i c t est pr ocedur es ar e f or use wi t h NewGener at i on St ar ( NGS) scan t est er . I f an af t er mar ket scan t ool i sused, ensur e t ool i s cer t i f i ed OBD- I I st andar d and r ef er t o scan t oolmanuf acturer s operat i ng pr ocedur es.

READING CODES

NOTE: Onl y t r ansaxl e- r el at ed t r oubl e codes ar e l i st ed. For engi ne- r el ated DTC def i ni t i ons, see TROUBLE CODE DEFI NI TI ONS art i cl e i n APPLI CATI ONS & I DENTI FI CATI ON sect i on. For engi ne- r el at ed DTC di agnosi s, see appr opr i at e G - TESTS W/ CODES ar t i cl e i n ENGI NE PERFORMANCE sect i on. These DTCs per t ai n t o engi ne perf ormance and must be r epai r ed f i r st , as engi ne per f ormance and r el at ed component si gnal s wi l l af f ect t r ansaxl e oper at i on and di agnosi s.

NOTE: I f sel f - t est wi l l not act i vate or TOOL COMMUNI CATI ON ERROR i s r ecei ved, see appr opr i ate G - TESTS W/ CODES ar t i cl e i n

ENGI NE PERFORMANCE sect i on.

KOEO & KOER Sel f - Test Codes Recor d codes i n order r ecei ved. These codes i ndi cat e cur r entf aul t s i n syst em and shoul d be servi ced i n order of appear ance. UseCODE REFERENCE TABLE t o i dent i f y cor r ect PI NPOI NT TEST t o per f orm.Pass Codes SYSTEM PASS i ndi cates no di agnost i c t r oubl e codes werer ecor ded i n t hat por t i on of t est . I f SYSTEM PASS i s not r et r i eved i nKOEO SELF- TEST, codes r et r i eved dur i ng KOER SELF- TEST may not be



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val i d.

Cont i nuous Memor y Codes These codes r esul t f r om i nf or mat i on st or ed by PCM dur i ngcont i nuous sel f - t est moni t or i ng. Use these codes f or di agnosi s onl ywhen KOEO SELF- TEST and KOER SELF- TEST resul t i n SYSTEM PASS and al lst eps under QUI CK TEST are successf ul l y compl eted. These codesi ndi cat e f aul t s previ ousl y r ecor ded. Faul t may or may not be cur r ent l ypr esent . See CODE REFERENCE TABLE.

CLEARING CODES

CAUTI ON: DO NOT di sconnect vehi cl e bat t ery t o cl ear codes. Thi s wi l l erase operat i ng i nf ormat i on f r om Keep- Al i ve Memory ( KAM) . To cl ear KAM, di sconnect negat i ve bat t er y t er mi nal f or at l east 5 mi nut es.

CAUTI ON: When bat t ery i s di sconnect ed, vehi cl e comput er may l ose memory data. Dr i veabi l i t y pr obl ems may exi st unt i l computer sys t ems have compl et ed a r el earn cycl e. See COMPUTER RELEARN PROCEDURES ar t i cl e i n GENERAL I NFORMATI ON bef or e di sconnect i ng bat t er y.

PCM Reset Af t er a PCM r eset pr ocedur e, t he f ol l owi ng condi t i ons wi l l bemet :

* Al l DTCs cl ear ed f r omPCM memory. * Al l f r eeze f r ame dat a cl ear ed f r omPCM memory.

* Al l oxygen sensor t est data cl ear ed f r omPCM memory. * OBD- I I syst em moni t or st at us i s r eset . * DTC P1000 set i n PCM memor y.

To perf or m PCM r eset usi ng NGS scan t est er , ensure connect or sar e pr oper l y connect ed. Pr ogr am scan test er usi ng the f ol l owi ng steps:

* Sel ect vehi cl e and engi ne sel ect i on menu ( opt i onal ) . * Sel ect year , engi ne, model and any addi t i onal i nf or mati on r equest ed by scan t est er ( opt i onal ) . * Fol l ow oper at i ng i nst r uct i ons f r om scan t est er menu. * Sel ect GENERI C OBD- I I FUNCTI ONS. Pr ess CONT but t on i f moni t ors are not compl ete.

* Tur n i gni t i on on. * Sel ect CLEAR DI AGNOSTI C CODES.

Al l codes shoul d now be cl eared f r omPCM memor y. I f pr obl emhas not been cor r ect ed or f aul t i s st i l l pr esent , har d code wi l li mmedi at el y be reset i n PCM memory.

QUICK TEST



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Descri pt i on Fol l owi ng pr ocedur es ar e f unct i onal t est s of EEC- V syst em.These basi c t est st eps must be f ol l owed i n sequence t o avoi dmi sdi agnosi s:

* VI SUAL CHECK * EQUI PMENT HOOKUP * KOEO ( Key On Engi ne Of f ) SELF- TEST * KOER ( Key On Engi ne Runni ng) SELF- TEST * CONTI NUOUS MEMORY SELF- TEST

Af t er each ser vi ce or r epai r pr ocedur e has been compl eted,r epeat QUI CK TEST t o ensur e al l EEC- V syst ems work proper l y anddi agnost i c t r oubl e codes ar e no l onger present .

Vi sual Check Compl ete al l st eps i n PRELI MI NARY I NSPECTI ON bef orepr oceedi ng t o sel f - di agnost i c t est s. Ensure vacuum hoses and EEC- Vwi r i ng harnesses ar e pr oper l y connected.

Appl y par ki ng br ake, and pl ace shi f t l ever i n Par k posi t i on.Bl ock dr i ve wheel s. Tur n of f al l el ectr i cal accessor i es.

Equi pment Hookup Connect appr opr i ate t est equi pment t o vehi cl e as f ol l ows:

Scan Tool Ensure scan t ool meet s or exceeds OBD- I I st andard. Fol l ow

manuf act ur er ' s i nst r uct i ons t o hook up equi pment and recor d di agnost i ct r oubl e codes.

New Gener at i on STAR ( NGS) Test er Tur n i gni t i on swi t ch t o OFF posi t i on. Connect adapt er cabl el ead t o di agnost i c t est er . See Fi g. 3. Connect ser vi ce connect or s ofadapt er cabl e to vehi cl e Data Li nk Connect or ( DLC) . Go to KOEO SELF-TEST.



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Fi g. 3: I dent i f yi ng New Gener at i on St ar ( NGS) Scan Test er

Cour t esy of Ford Motor Co. KOEO Sel f - Test Ensure engi ne i s warmed t o nor mal operat i ng t emperatur e. I fengi ne does not st ar t ( or st al l s af t er st ar t i ng) , cont i nue KOEO SELF-TEST. Turn i gni t i on swi t ch t o OFF posi t i on. Ensure t est equi pment i spr oper l y at t ached. Pr ogr am scan t est er usi ng t he f ol l owi ng st eps:

* Sel ect vehi cl e and engi ne sel ect i on menu. * Sel ect year , engi ne, model and any addi t i onal i nf or mati on



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r equest ed by scan t est er . * Sel ect DI AGNOSTI C DATA LI NK. * Sel ect PCM - POWERTRAI N CTRL MODULE. * Sel ect DI AGNOSTI C TEST MODE. * Sel ect KOEO ON- DEMAND SELF- TEST. * Tur n i gni t i on on. * Fol l ow oper at i ng i nst r uct i ons f r om scan t est er menu.

KOER Sel f - Test Ensur e engi ne i s warmed t o nor mal operat i ng t emper ature. Tur ni gni t i on swi t ch t o OFF posi t i on. Ensur e t est equi pment i s pr oper l yat t ached. Pr ogr am scan t est er usi ng t he f ol l owi ng st eps:

* Sel ect vehi cl e and engi ne sel ect i on menu. * Sel ect year , engi ne, model and any addi t i onal i nf or mati on r equest ed by scan t est er .

* Sel ect DI AGNOSTI C DATA LI NK. * Sel ect PCM - POWERTRAI N CTRL MODULE. * Sel ect DI AGNOSTI C TEST MODE. * Sel ect KOER ON- DEMAND SELF- TEST. * St ar t engi ne and al l ow t o i dl e. * Fol l ow oper at i ng i nst r uct i ons f r om scan t est er menu. * Per f or m BOO and TCS cycl i ng ( i f equi pped) .

Cont i nuous Memory Sel f - Test Tur n i gni t i on swi t ch t o OFF posi t i on. Ensure t est equi pmenti s pr oper l y at t ached. Progr am scan t ool usi ng t he f ol l owi ng st eps:

* Sel ect vehi cl e and engi ne sel ect i on menu.

* Sel ect year , engi ne, model and any addi t i onal i nf or mati on r equest ed by scan t ool . * Sel ect DI AGNOSTI C DATA LI NK. * Sel ect PCM - POWERTRAI N CTRL MODULE. * Sel ect DI AGNOSTI C TEST MODES. * Sel ect RETRI EVE/ CLEAR CONTI NUOUS DTCs. * Tur n i gni t i on on. * Fol l ow oper at i ng i nst r uct i ons f r om scan t ool menu.

ADDITIONAL SYSTEM FUNCTIONS

NOTE: Addi t i onal di agnost i c system f eat ur es ar e avai l abl e t o hel p di agnose dri veabi l i t y pr obl ems and servi ce EEC- V syst ems.

Gener i c OBD- I I Par amet er I dent i f i cat i on ( PI D) Tur n i gni t i on swi t ch t o OFF posi t i on. Ensure t est equi pmenti s pr oper l y at t ached. Progr am scan t ool usi ng t he f ol l owi ng st eps:

* Sel ect vehi cl e and engi ne sel ect i on menu ( opt i onal ) . * Sel ect year , engi ne, model and any addi t i onal i nf or mati on r equest ed by scan t ool ( opt i onal ) . * Sel ect GENERI C OBD- I I OPTI ONS. Press CONT but t on i f moni t ors are not compl ete.



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* Sel ect PI D/ DATA MONI TOR. * Tur n i gni t i on on or st ar t engi ne and al l ow t o i dl e. * Fol l ow oper at i ng i nst r uct i ons f r om scan t ool menu. * Sel ect PI Ds and press START.

Non- Gener i c OBD- I I Par amet er I dent i f i cat i on ( PI D) Tur n i gni t i on swi t ch t o OFF posi t i on. Ensure t est equi pmenti s pr oper l y at t ached. Progr am scan t ool usi ng t he f ol l owi ng st eps:

* Sel ect vehi cl e and engi ne sel ect i on menu. * Sel ect year , engi ne, model and any addi t i onal i nf or mati on r equest ed by scan t ool . * Sel ect GENERI C OBD- I I OPTI ONS. Press CONT but t on i f moni t ors are not compl ete. * Sel ect DI AGNOSTI C DATA LI NK. * Sel ect PCM - POWERTRAI N CTRL MODULE.

* Sel ect DI AGNOSTI C TEST MODES. * Sel ect PI D DATA MONI TOR AND RECORD. * Tur n i gni t i on on or st ar t engi ne and al l ow t o i dl e. * Fol l ow oper at i ng i nst r uct i ons f r om scan t ool menu. * Sel ect PI Ds and press START.

Out put Test Mode Thi s mode al l ows a t echni ci an t o energi ze and de- energi zemost of t he syst em out put act uat ors on command. Af t er accessi ng OUTPUTTEST MODE, outputs and cool i ng f ans can be t urned on and of fsepar atel y. To access OUTPUT TEST MODE, t urn i gni t i on swi t ch to OFFposi t i on. Ensur e test equi pment i s pr oper l y at t ached. Pr ogr am scant ool usi ng t he f ol l owi ng st eps:

* Sel ect vehi cl e and engi ne sel ect i on menu. * Sel ect year , engi ne, model and any addi t i onal i nf or mati on r equest ed by scan t ool . * Fol l ow oper at i ng i nst r uct i ons f r om scan t ool menu. * Sel ect DI AGNOSTI C DATA LI NK. * Sel ect PCM - POWERTRAI N CTRL MODULE. * Sel ect DI AGNOSTI C TEST MODE. * Sel ect ACTI VE COMMAND MODE. * Sel ect OUTPUT TEST MODE. * Tur n i gni t i on on. * Fol l ow oper at i ng i nst r uct i ons f r om scan t ool menu. * Sel ect ei t her LOW SPEED FAN, HI GH SPEED FAN or ALL ON mode.

* Sel ect START t o t ur n out put s on. Thi s st ep may cause l i nk- up t o PI Ds. * Sel ect STOP t o t ur n out put s of f .

TRANSMISSION DRIVE CYCLE TEST

NOTE: The t r ansmi ssi on dr i ve cycl e t est must be f ol l owed exact l y. Mal f unct i ons have t o occur 4 t i mes consecut i vel y f or codes P0731, P0732, P0733 and P0734 t o be set and 5 t i mes consecut i vel y f or cont i nuous codes P0741 and P1741. When



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perf or mi ng DRI VE CYCLE TEST, r ef er t o SOLENOI D OPERATI ON TABLE.

Test Procedure 1) Record and t hen erase Qui ck Test codes. Warm engi ne t onor mal oper at i ng t emper at ur e. Ensur e tr ansmi ssi on f l ui d l evel i scor r ect . Shi f t t r ansmi ssi on t o over dr i ve (OD) . 2) Accel er at e f r omst op t o 50 MPH. Hol d speed f or at l east 15seconds. Whi l e mai nt ai ni ng speed wi t h t r ansaxl e i n 4t h gear , l i ght l ydepr ess br ake pedal and r el ease. Mai nt ai n speed f or addi t i onal 5seconds. Br i ng vehi cl e t o st op f or at l east 20 seconds. Repeat st eps1) and 2) at l east 5 t i mes. Per f orm Qui ck Test and r ecor d cont i nuouscodes.

TRANSMISSION SOLENOID CYCLING & DRIVE TEST (DYNAMIC TEST)

Prel i mi nar y Set Up Connect Tr ansmi ssi on Test er ( 007- 0085D) . I nst al l pr essuregauge to l i ne pr essur e tap. See FORD AX4N overhaul art i cl e. SetBENCH/ DRI VE swi t ch t o DRI VE mode. Rot at e GEAR SELECT swi t ch t o "1"posi t i on. Ensur e vehi cl e i s i n par k ( "P") . St ar t vehi cl e.

CAUTI ON: Tr ansaxl e damage wi l l occur i f st al l t est i s conduct ed wi t h EPC swi t ch depressed.

EPC Sol enoi d Recor d l i ne pr essure. Li ne pr essure shoul d be 84 psi ( 579kPa) ( maxi mum l i ne pr essur e) . I f l i ne pr essur e i s not wi t hi nspeci f i cat i on, see TESTI NG i n FORD AX4N overhaul art i cl e or TEST E

PI NPOI NT TESTS. Depr ess EPC swi t ch. Li ne pressur e shoul d be 56 psi( 386 kPa) ( mi ni mum l i ne pr essur e) . I f l i ne pr essur e i s not wi t hi nspeci f i cat i on, see TESTI NG i n FORD AX4N over haul ar t i cl e or TEST E i nPI NPOI NT TESTS.

Engagement s 1) Ensure BENCH/ DRI VE swi t ch i s i n DRI VE mode and GEAR SELECTswi t ch i s i n "1" posi t i on. St art vehi cl e. Shi f t t ransaxl e f r om park t or ever se. Vehi cl e shoul d shi f t i nt o r ever se wi t h f i r m engagement . 2) Shi f t back t o park. Depr ess EPC swi t ch. Li ne pr essur eshoul d dr op t o 56 psi ( 386 kPa) ( i dl e pr essure) . Whi l e depr essi ng EPCswi t ch, shi f t vehi cl e f r om par k t o r ever se. Vehi cl e shoul d shi f t i nt or everse wi t h smooth engagement .

3) Shi f t vehi cl e f r om r ever se t o par k. Rel ease EPC swi t ch.Li ne pr essure shoul d ri se t o 84 psi ( 579 kPa) ( maxi mum pr essur e) .Shi f t vehi cl e f r om par k t o dr i ve. Vehi cl e shoul d shi f t i nt o dr i ve wi t hf i r m engagement . 4) Shi f t vehi cl e f r om dr i ve t o par k. Depr ess EPC swi t ch. Li nepr essur e shoul d dr op t o 56 psi ( 386 kPa) ( i dl e pr essur e) . Whi l edepr essi ng EPC swi t ch, shi f t vehi cl e f r om par k t o dr i ve. Vehi cl eshoul d shi f t i nt o dr i ve wi t h smoot h engagement . Rel ease EPC swi t ch.

NOTE: LEDs wi l l t urn Gr een when sol enoi ds act i vat e. Ensure



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appr opr i at e over l ay i s used wi t h Tr ansmi ssi on Test er.

Upshi f t / Downshi f t 1) Remove l i ne pr essure gauge. Ensur e gear sel ect swi t ch i si n "1" posi t i on. Shi f t t r ansmi ssi on t o over dr i ve and accel er at e to 15mph. Rot at e gear sel ect swi t ch t o "2" posi t i on. Vehi cl e shoul d shi f ti nto 2nd gear . Accel erate to 25 mph and rot ate gear sel ect knob f or3rd gear . 2) Vehi cl e shoul d shi f t i nt o 3r d gear . Accel er at e t o 35- 45mph and r ot ate gear sel ect knob f or 4t h gear . Vehi cl e shoul d shi f ti nt o 4t h gear. 3) Reverse t est pr ocedur e f or downshi f t s. Ensur e sol enoi dLEDs f unct i on as descr i bed f or each shi f t . Vehi cl e shoul d downshi f tt hrough each gear .

CAUTI ON: Do not depress TCC swi t ch wi t h t r ansmi ss i on i n gear and

vehi cl e at a st op. Damage t o TCC may r esul t . Tor que Conver t er Engagement Accel er at e and upshi f t vehi cl e i nt o 3r d gear . Mai nt ai nconst ant speed and depr ess TCC swi t ch. Tor que conver t er cl ut ch shoul dengage and engi ne RPM shoul d decr ease.

NOTE: Thi s t est may be per f ormed on hoi st .

Tur bi ne Shaf t Speed ( TSS) Sensor Funct i on Check Set vol t meter t o 20 vol t s A/ C. Connect vol t met er l eads t oappr opr i ate TSS j acks. Sl owl y accel er at e vehi cl e and moni t or vol t meterr eadi ng. Vol t age shoul d i ncr ease wi t h vehi cl e speed.

Transmi ssi on Test er Removal & Cl ear i ng Troubl e Codes Di sconnect Transmi ssi on Tester f r om t r ansaxl e connect or.I nstal l vehi cl e wi r i ng har ness to tr ansaxl e connector. I nst al l al lheat shi el ds t hat were r emoved. Di sconnect t est er power l ead f r omvehi cl e. See CLEARI NG CODES t o er ase any t r oubl e codes t hat were set .Run QUI CK TEST t o determi ne i f any t r oubl e codes ar e pr esent .

SUMMARY

I f no Di agnost i c Tr oubl e Code ( DTC) i s pr esent butdr i veabi l i t y probl emst i l l exi st s, see TROUBLE SHOOTI NG i n FORD AX4N

over haul ar t i cl e.NOTE: PI NPOI NT TESTS are di agnost i c f ormats used t o t est and servi ce EEC- V syst em. QUI CK TEST al l ows t echni ci an t o i dent i f y pr obl ems and r etr i eve servi ce codes. PI NPOI NT TESTS check t r ansaxl e ci r cui t s, sensor s, sol enoi ds and act uat or s.

CODE REFERENCE CHART




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NOTE: Onl y t r ansaxl e- r el at ed t r oubl e codes ar e l i st ed. For engi ne- r el ated DTC def i ni t i ons, see TROUBLE CODE DEFI NI TI ONS art i cl e i n APPLI CATI ONS & I DENTI FI CATI ON sect i on. For engi ne- r el at ed DTC di agnosi s, see appr opr i at e G - TESTS W/ CODES ar t i cl e i n ENGI NE PERFORMANCE sect i on. These DTCs per t ai n t o engi ne perf ormance and must be r epai r ed f i r st , as engi ne per f ormance and r el at ed component si gnal s wi l l af f ect t r ansaxl e oper at i on and di agnosi s.

CODE REFERENCE TABLEFaul t Code Pi npoi ntCode ( 1) Def i ni t i on Test

P0705 . . . . . . . . . . . . . . Di gi t al TR Sensor Fai l ur e . . . . . . . . . . . . . . . . . DP0707 . . . . . . . . . . . . . . TR Sensor Ci r cui t Shor t ed . . . . . . . . . . . . . . . . . DP0708 . . . . . . . . . . . . . . . TR Sensor Ci r cui t Open . . . . . . . . . . . . . . . . . . . DP0712 . . . . . . . . . . . . . . TFT Sensor Ci r cui t Shor t ed . . . . . . . . . . . . . . . . BP0713 . . . . . . . . . . . . . . . TFT Sensor Ci r cui t Open . . . . . . . . . . . . . . . . . . BP0715 . . . . . . . . . . . . . . I nsuf f i ci ent I nput Fr om TSS . . . . . . . . . . . . . . . FP0731 . . . . . . . . . . . . . . . . . . . . . No 1st Gear . . . . . . . . . . . . . . . . . . . . . . . . AP0732 . . . . . . . . . . . . . . . . . . . . . No 2nd Gear . . . . . . . . . . . . . . . . . . . . . . . . AP0733 . . . . . . . . . . . . . . . . . . . . . No 3r d Gear . . . . . . . . . . . . . . . . . . . . . . . . AP0734 . . . . . . . . . . . . . . . . . . . . . No 4t h Gear . . . . . . . . . . . . . . . . . . . . . . . . AP0741 . . . . . . . . . . . . . . . . TCC Engagement Er r or . . . . . . . . . . . . . . . . . . . . CP0743 . . . . . . . . . . . . . . . . . TCC Ci r cui t Er r or . . . . . . . . . . . . . . . . . . . . . . CP0750 . . . . . . . . . . . . . SS1 Sol enoi d Ci r cui t Fai l ur e . . . . . . . . . . . . . . . A

P0751 . . . . . SS1 Mechani cal Or Hydr aul i c Sol enoi d Fai l ur e . . . . . . . AP0755 . . . . . . . . . . . . . SS2 Sol enoi d Ci r cui t Fai l ur e . . . . . . . . . . . . . . . AP0756 . . . . . SS2 Mechani cal Or Hydr aul i c Sol enoi d Fai l ur e . . . . . . . AP0760 . . . . . . . . . . . . . SS3 Sol enoi d Ci r cui t Fai l ur e . . . . . . . . . . . . . . . AP0761 . . . . . SS3 Mechani cal Or Hydr aul i c Sol enoi d Fai l ur e . . . . . . . AP1000 . . . . . . . . . . . OBD- I I Moni tor i ng Not Compl eted . . . . . . . . . . . . . . . .P1111 . . . . . . . . . . . . . . . . . . . . . Syst em Pass . . . . . . . . . . . . . . . . . . . . . . . . .P1700 . . . . . . . . . . . . . . AX4S Mechani cal Fai l ur e . . . . . . . . . . . . . . . . . ( 2)P1702 . . . . . . . . . . . . . Di gi t al TR Sensor Ci r cui t . . . . . . . . . . . . . . . . . . DP1705 . . . . . . . . . . . . . . . . . . . TR Not I n Par k . . . . . . . . . . . . . . . . . . . . . . . DP1710 . . . . . . . . . . . . . . TFT Out Of Range (Mi d) . . . . . . . . . . . . . . . . . . . . BP1711 . . . . . . . . . . . . . . . . . TFT Out Of Range . . . . . . . . . . . . . . . . . . . . . . . BP1713 . . . . . . . . . . . . . . TFT Out Of Range ( Low) . . . . . . . . . . . . . . . . . . . . B

P1718 . . . . . . . . . . . . . . TFT Out Of Range (Hi gh) . . . . . . . . . . . . . . . . . . . BP1714 . . . . . SS1 Mechani cal Or Hydr aul i c Sol enoi d Fai l ur e . . . . . . . HP1715 . . . . . SS2 Mechani cal Or Hydr aul i c Sol enoi d Fai l ur e . . . . . . . HP1716 . . . . . SS3 Mechani cal Or Hydr aul i c Sol enoi d Fai l ur e . . . . . . . HP1740 . . . . . TCC Mechani cal Or Hydr aul i c Sol enoi d Fai l ur e . . . . . . . HP1741 . . . . . . . . . . . . . . . TCC Cont i nuous Sl i p . . . . . . . . . . . . . . . . . . . . . . CP1742 . . . . . . . . . . . TCC Sol enoi d Fai l ed ( Cal i f . ) . . . . . . . . . . . . . . . . . CP1743 . . . . . . . . . . . TCC Sol enoi d Fai l ed ( Cal i f . ) . . . . . . . . . . . . . . . . . CP1744 . . . . . . . . . . . TCC Excessi ve Sl i p ( Cal i f . ) . . . . . . . . . . . . . . . . . . CP1746 . . . . . . . . . . . . . . Open PCM Out put Dr i ver . . . . . . . . . . . . . . . . . . . . E



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P1747 . . . . . . . . . . . EPC Sol enoi d Ci r cui t Fai l ur e . . . . . . . . . . . . . . . . . EP1751 . . . . . SS1 Mechani cal Or Hydr aul i c Sol enoi d Fai l ur e . . . . . . . AP1756 . . . . . SS2 Mechani cal Or Hydr aul i c Sol enoi d Fai l ur e . . . . . . . AP1760 . . . . . . . . . . EPC Sol enoi d Ci r cui t Fai l ur e . . . . . . . . . . . . . . . . . . EP1761 . . . . . SS3 Mechani cal Or Hydr aul i c Sol enoi d Fai l ur e . . . . . . . AP1767 . . . . . . . . . . . . . . . . TCC Ci r cui t Er r or . . . . . . . . . . . . . . . . . . . . . . . CP1783 . . . . . . . . . . . . . . Tr ansmi ssi on Over t emp . . . . . . . . . . . . . . . . . . . . . BP1901 . . . . . . . . . . . . . TSS I nt er mi t t ent Si gnal . . . . . . . . . . . . . . . . . . . . F

( 1) - Onl y engi ne per f ormance f aul t codes that may af f ect t r ansmi ssi on oper at i on ar e l i st ed. For compl et e l i st of engi ne per f ormance f aul t codes, see appropr i ate G - TESTS W/ CODES ar t i cl e i n ENGI NE PERFORMANCE sect i on.( 2) - Low one- way cl ut ch f ai l ur e. Al so check f l ui d l evel .

HOW TO USE PINPOINT TESTS

1) DO NOT perf orm any PI NPOI NT TEST unl ess speci f i cal l yi nst r uct ed by a QUI CK TEST pr ocedur e. Fol l ow each t est st ep i n orderunt i l f aul t i s f ound. DO NOT repl ace any par t unl ess di r ect ed t o doso. When mor e t han one code i s r etr i eved, st ar t wi t h f i r st codedi spl ayed. 2) PI NPOI NT TESTS ensur e el ect r i cal ci r cui t s ar e okay bef or esensors or other component s ar e r epl aced. Al ways t est ci r cui t s f orcont i nui t y bet ween sensor and PCM. Test al l ci r cui t s f or shor t t opower, opens or shor t t o gr ound. Vol t age Ref erence ( VREF) and Vol t agePower ( VPWR) ci r cui t s shoul d be t est ed wi t h i gni t i on on or asspeci f i ed i n PI NPOI NT TESTS.

3) DO NOT measur e vol t age or r esi st ance at PCM. DO NOTconnect any test l i ght unl ess speci f i ed i n t est i ng pr ocedur e. Al lmeasur ement s ar e made by pr obi ng r ear of connect or . I sol ate both endsof a ci r cui t and t ur n i gni t i on of f when checki ng f or shor t s orcont i nui t y, unl ess i nst r uct ed ot her wi se. 4) Di sconnect sol enoi ds and swi t ches f r omharness bef oremeasur i ng cont i nui t y and resi st ance or appl yi ng vol t age. Af t er eachr epai r , check al l component connect i ons and r epeat QUI CK TEST. 5) An open ci r cui t i s def i ned as a r esi st ance r eadi ng ofgr eat er t han 5 ohms. Thi s speci f i cat i on tol erance may be t oo hi gh f orsome i t ems i n EEC- V syst em. I f r esi st ance appr oaches 5 ohms, al wayscl ean suspect connect or and coat i t wi t h pr ot ect i ve di el ect r i csi l i cone gr ease. A shor t i s def i ned as a r esi st ance r eadi ng of l ess

t han 10 k/ ohms t o ground, unl ess st ated other wi se i n PI NPOI NT TESTS.

PINPOINT TESTS


NOTE: Procedures i n PI NPOI NT TESTS are wr i t t en f or the use of t he f ol l owi ng For d Motor Co. t est equi pment :



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* New Generat i on Star ( NGS) Test er ( 007- 00500) * Br eakout Box ( 014- 00950) * Transmi ssi on Test er ( 007- 0085D) Ter mi nal pi n r ef erences are based on t hi s equi pment and appr opr i at e over l ays. Al l r ef er ences t o "t est pi ns", "t est t er mi nal s" or "j acks" r ef er t o t est equi pment . When af t ermarket t est equi pment i s used, al ways f ol l ow t est equi pment manuf act urer s procedures.

TEST A: SHIFT SOLENOIDS

1) AX4N El ect r oni c Di agnost i cs - Ensur e t r ansaxl e harnessconnect or i s i n accept abl e condi t i on. Repai r as necessar y. Ensur et r ansaxl e harness connect or i s f ul l y seated. Connect scan t ool t o DLC.Per f orm KOEO t est unt i l Cont i nuous Memory t r oubl e code( s) have beendi spl ayed. See QUI CK TEST. Ent er out put t est mode. See ADDI TI ONAL

SYSTEM FUNCTI ONS. Sel ect ALL ON mode. Push START t o t urn out put s ON.Push STOP t o t ur n out put s OFF. I f vehi cl e ent ers out put st at e, go t onext st ep. I f vehi cl e wi l l not ent er out put st at e, see appr opr i at e G -TESTS W/ CODES ar t i cl e i n ENGI NE PERFORMANCE sect i on. 2) Check El ect r i cal Si gnal Oper at i on - Tur n i gni t i on of f .Di sconnect t r ansaxl e harness connect or. I nspect condi t i on of connect orand repai r as needed. Tur n i gni t i on on. Usi ng DVOM, connect posi t i vel ead t o t r ansaxl e har ness connect or t er mi nal No. 2. See Fi g. 4.Connect negat i ve l ead t o suspect sol enoi d ci r cui t ( t er mi nal No. 1, 6and/ or 8) . Whi l e moni t or i ng DVOM, press START and STOP t o cycl esol enoi d out put on and of f . I f vol t age changes at l east . 5 vol t , go tost ep 5) . I f vol t age i s unaf f ect ed, go t o next st ep.

Fi g. 4: I dent i f yi ng Tr ansaxl e Har ness Connect orCour t esy Of Ford Mot or Co.



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3) Check Cont i nui t y Of Sol enoi d Si gnal & VPWR HarnessCi r cui t s - Ensur e i gni t i on i s of f . Di sconnect PCM 104- pi n connect or ,and i nspect i t f or damaged pi ns, cor r osi on and l oose wi r es. Repai r asnecessary. I nst al l br eakout box, l eavi ng PCM di sconnect ed. Measure andr ecor d resi st ance between speci f i ed t ermi nal s. See SOLENOI D CI RCUI TCONTI NUI TY TEST t abl e. I f any r esi st ance measurement i s gr eat er t han 5ohms, r epai r open ci r cui t . Connect al l component s. Di sconnect br eakoutbox and r epeat QUI CK TEST. I f each resi st ance i s 5 ohms or l ess, go tonext st ep.

SOLENOI D CI RCUI T CONTI NUI TY TESTSol enoi d Ter mi nal No. ( 1) , ( 2) Br eakout Box Ter mi nal

Cont i nental & Taurus SHO

1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71, 97Sabl e & Taur us ( Except SHO) 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71, 97

( 1) - Har ness connect or .( 2) - See Fi g. 4.

4) Check Sol enoi d Harness For Shor t s To Power & Gr ound -Measure and recor d resi st ance between speci f i ed breakout box t estpi ns. See SOLENOI D SHORT CI RCUI T TEST tabl e. I f any r esi st ance i s l esst han 10 k/ ohms, r epai r short ci r cui t . Connect al l component s.Di sconnect breakout box and r epeat QUI CK TEST. I f each r esi st ance i s10 k/ ohms or more, go t o next st ep.

SOLENOI D SHORT CI RCUI T TEST ( 1)Br eakout Box Termi nal Br eakout Box Termi nal

Cont i nental & Taurus SHO

6, 11, 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 & 97 6, 11, 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24, 51, 76, 77, 91, 103 6, 11, 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gr oundSabl e & Taur us ( Except SHO) 1, 27, 53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 & 97 1, 27, 53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24, 51, 76, 77, 91, 103 1, 27, 53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gr ound

( 1) - Measure between br eakout box test pi ns.



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5) Sol enoi d Funct i onal Test - Connect t r ansaxl e t est er .Per f or m sol enoi d vol t age t est . See t ester i nst r ucti ons. I f sol enoi dact i vat es ( Gr een LED on) , go t o next st ep. I f sol enoi d does notact i vat e LED, go t o st ep 7) . 6) Tr ansaxl e Dr i ve Test - Connect PCM 104- pi n connect or .Perf orm t ester dri ve t est. See t ester i nstr uct i ons. I f vehi cl eupshi f t s when oper ated wi t h tester, r epl ace PCM. Connect al lcomponents. Di sconnect breakout box and r epeat QUI CK TEST. I f vehi cl edoes not upshi f t when operated by t est er , go to next st ep. 7) Check Resi st ance Of Sol enoi ds - Set t ester Bench/ Dr i veswi t ch t o BENCH posi t i on. Set Sol enoi d Sel ect or swi t ch t o OHMS CHECK.Connect ohmmeter negat i ve l ead t o SS1 j ack and posi t i ve l ead t o VPWRj ack on t est er . Measur e and r ecor d r esi st ance. Connect ohmmet ernegat i ve l ead t o SS2 j ack and posi t i ve l ead t o VPWR j ack on t est er .Measur e and record resi st ance. Connect ohmmeter negat i ve l ead t o SS3

j ack and posi t i ve l ead t o VPWR j ack on t est er . Measur e and r ecor dr esi st ance. Resi st ance f or al l sol enoi ds on Cont i nent al and Taur us SHOmodel s shoul d be 20- 30 ohms. Resi st ance f or al l sol enoi ds on Sabl e andTaur us 3. 0L model s shoul d be 15- 25 ohms. I f r esi st ance i s wi t hi nspeci f i cat i on, go t o next st ep. I f r esi st ance i s not wi t hi nspeci f i cat i on, r epl ace sol enoi d body assembl y. Er ase al l t r oubl ecodes. See CLEARI NG CODES. Repeat QUI CK TEST. 8) Check Sol enoi d For Shor t To Gr ound - Check cont i nui t ybet ween BAT( - ) t ermi nal and between SS1, SS2 and SS3 j ack. I fcont i nui t y exi st s, go t o next step. I f cont i nui t y does not exi st , seeTROUBLE SHOOTI NG i n FORD AX4N overhaul ar t i cl e f or non- el ect r oni csympt om di agnost i cs. 9) AX4N I nt er nal El ect r oni c Di agnost i cs - Dr ai n t r ansaxl e

f l ui d. Remove t r ansaxl e si de cover . I nspect al l i nt er nal har nessconnectors. Ensur e al l connectors are f ul l y connected and not damaged.Repai r as needed. I f al l connect or s ar e okay, go t o next st ep. I nst al lal l component s i n r ever se or der of di sassembl y. Fi l l t r ansaxl e wi t hf l ui d. Erase al l DTCs. See CLEARI NG CODES. Repeat QUI CK TEST. 10) Check I nt er nal Transaxl e Harness Cont i nui t y - Di sconnecti nt er nal har ness f r om sol enoi d assembl i es. To test SS1, connectposi t i ve l ead of ohmmet er t o t est er SS- 1 j ack and negat i ve l ead t o SS1connector Or ange wi r e. Measure and r ecor d resi st ance. To t est SS2,connect posi t i ve l ead of ohmmeter t o t est er SS- 2 j ack and negat i vel ead to SS2 connect or Pi nk wi r e. Measure and recor d resi st ance. Tot est SS3, connect posi t i ve l ead of ohmmeter t o tester SS- 3 j ack andnegat i ve l ead to SS3 connector Yel l ow wi r e. Measure and record

r esi st ance. To t est SS1, SS2 and SS3 VPWR ci r cui t s, connect posi t i ve l eadof ohmmeter t o cor r espondi ng VPWR t est er t ermi nal . Connect negat i vel ead to sel ect ed sol enoi d connect or r ed wi r e. Measur e and recor dr esi st ance. I f al l r esi st ances measur ed ar e . 5 ohm or l ess, go to nextst ep. I f any r esi st ance measured i s mor e t han . 5 ohm, r epl ace i nt er nalharness. Go to st ep 12) . 11) Check I nt ernal Harness For Short s To Gr ound - Usi ngt r ansmi ssi on t est er , check cont i nui t y between each sol enoi d l ead andBAT ( - ) t er mi nal of t est er . I f cont i nui t y does not exi st i n any



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ci rcui t , go t o next step. I f cont i nui t y exi sts i n any ci rcui t , repl acei nt er nal har ness and go t o next st ep. 12) Check Resi st ance Of Sol enoi d - Usi ng ohmmeter , checkr esi st ance bet ween ter mi nal s of each sol enoi d. Resi st ance f or al lsol enoi ds on Cont i nental and Taur us SHO model s shoul d be 20- 30 ohms.Resi st ance f or al l sol enoi ds on Sabl e and Taur us 3. 0L model s shoul d be15- 25 ohms. I f r esi st ance i s wi t hi n speci f i cat i on, go t o next st ep. I fr esi st ance measur ed f or any sol enoi d i s not wi t hi n speci f i cat i on,r epl ace suspect sol enoi d. I nst al l al l component s i n r ever se or der ofdi sassembl y. Fi l l t r ansaxl e wi t h f l ui d. Er ase al l DTCs. See CLEARI NGCODES. Repeat QUI CK TEST. 13) Check Sol enoi d For Shor t To Gr ound - Usi ng ohmmeter ,check cont i nui t y between each sol enoi d t ermi nal and ground. I fcont i nui t y exi sts, repl ace f aul t y shi f t sol enoi d. I f cont i nui t y doesnot exi st , go to TROUBLE SHOOTI NG i n FORD AX4N over haul ar t i cl e.I nst al l al l component s i n r ever se or der of di sassembl y. Fi l l t r ansaxl e

wi t h f l ui d. Erase al l DTCs. See CLEARI NG CODES. Repeat QUI CK TEST. TEST B: TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR

1) AX4N El ect r oni c Di agnost i cs - Check t r ansaxl e har nessconnect or . I nspect connect or f or damaged pi ns, cor r osi on and l oosewi r es. Ensur e t r ansaxl e connect or i s f ul l y seat ed. Repai r asnecessar y. Go to next st ep. 2) Check El ect r i cal Si gnal Oper at i on - Ensur e i gni t i on i sof f . Di sconnect t r ansaxl e connect or . Usi ng DVOM, connect posi t i ve l eadt o t r ansaxl e har ness connect or t ermi nal No. 5 and negat i ve l ead t ot er mi nal No. 9. See Fi g. 4. Tur n i gni t i on on. I f vol t age i s 4. 5- 5. 25vol t s, go t o step 6) . I f vol t age i s not wi t hi n speci f i cat i on, go t o

next st ep. 3) Check Cont i nui t y Of TFT Si gnal Retur n ( SI G RTN) Ci r cui t s -Turn i gni t i on of f . Di sconnect PCM 104- pi n connect or , and i nspect i tf or damaged pi ns, cor r osi on and l oose wi r es. Repai r as necessary.I nst al l br eakout box, l eavi ng PCM di sconnect ed. Measur e and r ecor dr esi st ance between br eakout box t est pi n No. 37 and t r ansaxl e harnessconnect or t ermi nal No. 5. See Fi g. 4. Measur e and r ecor d r esi st ancebetween t est pi n No. 91 and t r ansaxl e harness connector t ermi nal No.9. I f each r esi st ance i s l ess t han 5 ohms, go t o next st ep. I f anyr esi st ance i s more than 5 ohms, r epai r open ci r cui t . Connect al lcomponent s. Erase t r oubl e codes. See CLEARI NG CODES. Repeat QUI CKTEST. 4) Check TFT Ci r cui t For Shor t To VPWR & Gr ound - Ensur e

i gni t i on i s of f . Di sconnect PCM 104- pi n connect or , and i nspect i t f ordamaged pi ns, cor r osi on and l oose wi r es. Repai r as necessary. I nst al lbr eakout box, l eavi ng PCM di sconnect ed. Measure and recor d resi st ancebet ween br eakout box t est pi n No. 37 and test pi ns No. 71 and 97.Measure and record resi st ance between test pi ns No. 24, 51, 76, 77,91, 103 and t est pi n 37, and gr ound. I f any resi st ance i s l ess than 10k/ ohms, r epai r shor t ci r cui t . Di sconnect br eakout box and r epeat QUI CKTEST. I f r esi st ance i s 10 k/ ohms or more, go t o next st ep. 5) Check Resi st ance Of TFT Sensor / Harness - I nst al lt r ansmi ssi on t est er . Set t est er Bench/ Dr i ve swi t ch t o BENCH posi t i on.



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Set Sol enoi d Sel ect or swi t ch t o OHMS CHECK. Connect ohmmet er l eads t oappr opr i ate TFT j acks. Measur e and r ecor d r esi st ance. Resi st anceshoul d be wi t hi n speci f i cat i on. See appr opr i at e TFTTEMPERATURE/ RESI STANCE TABLE. I f r esi st ance i s wi t hi n speci f i cat i onf or speci f i c t emper at ur e, ei t her war m up tr ansaxl e or al l ow t r ansaxl et o cool t o check r esi st ance at di f f er ent t emper at ur es. I f r esi st ancesmeasur ed r emai n wi t hi n speci f i cat i on, go t o next st ep. I f r esi st ancesmeasur ed ar e not wi t hi n speci f i cat i on, go to st ep 7) .

TFT TEMPERATURE/ RESI STANCE TABLETemperat ure F ( C) Resi st ance ( k/ Ohms)

32- 68 ( 0- 20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37- 10059- 104 ( 21- 40) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16- 37105- 158 ( 41- 70) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5- 16

159- 194 ( 71- 90) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 7- 5195- 230 ( 91- 110) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. 5- 2. 7231- 266 ( 111- 130) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8- 1. 5267- 302 ( 131- 150) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54- . 8

6) Check TFT Sensor / Harness For Shor t To Gr ound - Checkcont i nui t y bet ween BAT (- ) t est er j ack and TFT j acks. I f cont i nui t yexi st s, go t o next st ep. I f cont i nui t y does not exi st , r epl ace PCM.Erase al l DTCs. See CLEARI NG CODES. Road t est vehi cl e. Repeat QUI CKTEST. I f DTC i s st i l l present , go t o next st ep. 7) AX4N I nt er nal El ect r oni c Di agnost i cs - Dr ai n t r ansaxl ef l ui d. Remove t r ansaxl e si de cover . I nspect i nt er nal har ness connect or

at TFT sensor. Ensure al l connect or s are f ul l y connect ed and notdamaged. I f al l connect or s are okay, go to next st ep. Repai r asneeded. I nst al l al l component s i n r ever se or der of di sassembl y. Fi l lt r ansaxl e wi t h f l ui d. Erase al l DTCs. See CLEARI NG CODES. Repeat QUI CKTEST. 8) Check I nt ernal Harness Cont i nui t y - Di sconnect i nt er nalharness f r om TFT sensor . Connect posi t i ve l ead of ohmmet er t o t est erTFT ( +) j ack and negat i ve l ead t o TFT connect or Bl ack wi r e. Measur eand recor d resi st ance. Connect posi t i ve l ead of ohmmeter t o t est erTFT( - ) j ack and negat i ve l ead t o TFT connect or Whi t e wi r e. I fr esi st ances measur ed ar e . 5 ohm or l ess, go to next st ep. I f anyr esi st ance measured i s more than . 5 ohm, r epl ace i nternal harness. Got o st ep 10) .

9) Check I nt ernal Harness For Short s To Gr ound - Usi ngt r ansmi ssi on t est er , check cont i nui t y between each TFT sensorconnect or t er mi nal s and BAT( - ) t er mi nal of t est er . I f cont i nui t y doesnot exi st i n any ci r cui t , go t o next step. I f cont i nui t y exi sts i n anyci r cui t , r epl ace i nt er nal har ness. Go t o next st ep. 10) Check TFT Sensor Resi st ance - Usi ng ohmmet er , checkr esi st ance bet ween t er mi nal s TFT sensor . I f r esi st ance i s wi t hi nspeci f i cat i on f or speci f i c temper at ur e, go t o next st ep. I fr esi st ances measur ed ar e not wi t hi n speci f i cat i on, r epl ace TFT sensor .I nst al l al l component s i n r ever se or der of di sassembl y. Fi l l t r ansaxl e



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wi t h f l ui d. Erase al l DTCs. See CLEARI NG CODES. Repeat QUI CK TEST.

TFT TEMPERATURE/ RESI STANCE TABLETemperat ure F ( C) Resi st ance- ( K/ ohms)

32- 58 ( 0- 20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37- 10059- 104 ( 21- 40) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16- 37105- 158 ( 41- 70) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5- 16159- 194 ( 71- 90) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 7- 5195- 230 ( 91- 110) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. 5- 2. 7231- 266 ( 111- 130) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8- 1. 5267- 322 ( 131- 150) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54- . 8

11) Check TFT Sensor For Shor t To Gr ound - Usi ng ohmmet er ,

check cont i nui t y between each TFT sensor t ermi nal and gr ound. I fcont i nui t y exi st s, r epl ace f aul t y TFT sensor . I f cont i nui t y does notexi st , i nst al l al l component s i n r ever se or der of di sassembl y. Fi l lt r ansaxl e wi t h f l ui d. Erase al l DTCs. See CLEARI NG CODES. Repeat QUI CKTEST, see G - TESTES W/ CODES - EEC- V ar t i cl e i n ENGI NE PERFORMANCEsecti on t o di agnose vehi cl e harness or PCM mal f unct i ons.

TEST C: TORQUE CONVERTER CLUTCH (TCC) SOLENOID

1) AX4N El ect r oni c Di agnost i cs - Ensur e t r ansaxl e harnessconnect or i s i n accept abl e condi t i on. Repai r as necessar y. Ensur et r ansaxl e harness connect or i s f ul l y seated. Connect NGS t est er orequi val ent t o DLC. Per f or m KOEO t est unt i l Cont i nuous Memory t r oubl e

code( s) have been di spl ayed. See QUI CK TEST. Ent er out put t est mode.See ADDI TI ONAL SYSTEM FUNCTI ONS. Sel ect ALL ON mode. Push START t ot urn output s ON. Push STOP to out puts OFF. I f vehi cl e ent ers out putst at e, go t o next st ep. I f vehi cl e wi l l not ent er out put st at e, seeappropr i at e G - TESTS W/ CODES ar t i cl e i n ENGI NE PERFORMANCE sect i on. 2) Check El ect r i cal Si gnal Oper at i on - Di sconnect t r ansaxl eharness connect or. I nspect condi t i on of connect or and r epai r asneeded. Usi ng DVOM, connect posi t i ve l ead to t r ansaxl e harnessconnect or t ermi nal No. 7. See Fi g. 4. Connect negat i ve l ead t ot ermi nal No. 3. Whi l e moni t or i ng DVOM, press START and STOP t o cycl esol enoi d out put on and of f . I f vol t age changes at l east . 5 vol t , go tost ep 5) . I f vol t age i s unaf f ect ed, go t o next st ep. 3) Check Cont i nui t y Of Sol enoi d Si gnal & VPWR Harness

Ci r cui t s - Ensur e i gni t i on i s of f . Di sconnect PCM 104- pi n connect or ,and i nspect i t f or damaged pi ns, cor r osi on and l oose wi r es. Repai r asnecessary. I nst al l br eakout box, l eavi ng PCM di sconnect ed. OnCont i nent al , measure and r ecor d resi st ance between br eakout box testpi n No. 54 and t r ansaxl e harness connect or t ermi nal No. 3. On Sabl eand Taur us, measur e and record resi st ance bet ween br eakout box t estpi n No. 82 and t r ansaxl e har ness connect or t er mi nal No. 3. See Fi g. 4.On al l model s, measure and recor d resi st ance between test pi ns No. 71and 97 and t r ansaxl e harness connect or t er mi nal No. 7. I f anyr esi st ance i s gr eat er t han 5 ohms, r epai r open ci r cui t . Connect al l



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components. Di sconnect breakout box and repeat QUI CK TEST. I f eachr esi st ance i s 5 ohms or l ess, go t o next s t ep. 4) Check Sol enoi d/ Harness For Shor t s To Power & Gr ound - OnCont i nent al , measure and r ecor d r esi st ance between test pi n No. 54 andt est pi ns No. 71 and 97. Measure and r ecor d resi st ance between testpi n No. 54 and pi ns No. 24, 51, 76, 77, 91, 103 and gr ound. On Sabl eand Taurus, measur e and r ecord resi st ance between test pi n No. 82 andt est pi ns No. 71 and 97. Measure and r ecor d resi st ance between testpi n No. 82 and pi ns No. 24, 51, 76, 77, 91, 103 and ground. I f anyr esi st ance measur ed i s l ess t han 10 k/ ohms, r epai r shor t ci r cui t .Connect al l component s. Di sconnect breakout box and r epeat QUI CK TEST.I f each resi st ance i s 10 k/ ohms or more, go t o next st ep. 5) Sol enoi d Funct i onal Test - Connect t r ansaxl e t est er .Per f or m TCC sol enoi d f uncti onal t est . See t est er i nst r ucti ons. I f sol enoi d act i vat es ( Gr een LED on) , go to next st ep. I f sol enoi d doesnot act i vat e LED, go t o st ep 7) .

6) Tr ansaxl e Dr i ve Test - Connect PCM 104- pi n connect or .Per f or m t est er dr i ve t est. See t est er i nst r ucti ons. I f engi ne RPMdecr eases when operated wi t h t est er , see appropr i ate G - TESTS W/ CODESart i cl e i n ENGI NE PERFORMANCE sect i on t o di agnose PCM and har ness. I fengi ne RPM does not decr ease when operated by t est er , go t o next st ep. 7) Check Resi st ance Of Sol enoi d - Set t ester Bench/ Dr i veswi t ch t o BENCH posi t i on. Set Sol enoi d Sel ect or swi t ch t o OHMS CHECK.Connect ohmmeter negat i ve l ead t o TCC j ack and posi t i ve l ead t o VPWRj ack on t est er . Measur e r esi st ance. Resi st ance shoul d be 13- 24 ohms.I f resi stance i s wi t hi n speci f i cat i on, go t o next step. I f r esi stancei s not wi t hi n speci f i cat i on, r epl ace sol enoi d body assembl y. Er ase al lt r oubl e codes. See CLEARI NG CODES. Repeat QUI CK TEST. 8) Check Sol enoi d/ Harness For Shor t To Gr ound - Check

cont i nui t y bet ween BAT ( - ) t est er j ack and TCC j acks. I f cont i nui t yexi st s, go t o next st ep. I f cont i nui t y does not exi st , Er ase al lt r oubl e codes. See CLEARI NG CODES. Repeat QUI CK TEST. See TROUBLESHOOTI NG i n FORD AX4N over haul ar t i cl e f or non- el ect r oni c symptomdi agnost i cs. 9) AX4N I nt er nal El ect r oni c Di agnost i cs - Dr ai n t r ansaxl ef l ui d. Remove t r ansaxl e si de cover . I nspect al l i nt er nal har nessconnectors. Ensur e al l connectors are f ul l y connected and not damaged.Repai r as needed. I f al l connect or s ar e okay, go t o next st ep. I nst al lal l component s i n r ever se or der of di sassembl y. Fi l l t r ansaxl e wi t hf l ui d. Erase al l DTCs. See CLEARI NG CODES. Repeat QUI CK TEST. 10) Check I nt er nal Har ness Cont i nui t y - Di sconnect i nt er nalharness f r om TCC sol enoi d. Connect posi t i ve l ead of ohmmet er t o t est er

TCC j ack and negat i ve l ead t o TCC connect or Br own wi r e. Measur e andr ecor d r esi st ance. Connect posi t i ve l ead of ohmmeter t o t est er VPWRj ack and negat i ve l ead t o TCC connect or Gr een wi r e. I f r esi st ancesmeasur ed ar e . 5 ohm or l ess, go t o next st ep. I f any resi st ancemeasured i s more than . 5 ohm, r epl ace i nternal harness. Go t o st ep12) . 11) Check I nt ernal Harness For Short s To Gr ound - Usi ngt r ansmi ssi on t est er , check cont i nui t y between each TCC sol enoi dconnect or t er mi nal s and BAT( - ) t er mi nal of t est er . I f cont i nui t y doesnot exi st i n ei t her ci r cui t , go t o next step. I f cont i nui t y exi sts i n



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any ci r cui t , r epl ace i nt er nal har ness. Go to next st ep. 12) Check TCC Sol enoi d Resi st ance - Usi ng ohmmeter , checkr esi st ance bet ween termi nal s of TCC sol enoi d. Resi st ance shoul d be .98- 1. 6 ohms on Wi ndst ar and, 1997 Sabl e and Taurus. Resi st ance shoul dbe 13- 24 ohms on 1998 Sabl e and Taurus. I f r esi st ance i s wi t hi nspeci f i cat i on, go t o next st ep. I f r esi st ance i s not wi t hi nspeci f i cat i on, r epl ace TCC sol enoi d. I nst al l al l component s i n r ever seor der of di sassembl y. Fi l l t r ansaxl e wi t h f l ui d. Er ase al l DTCs. SeeCLEARI NG CODES. Repeat QUI CK TEST. 13) Check Sol enoi d For Shor t To Gr ound - Usi ng ohmmeter ,check cont i nui t y between each TCC sol enoi d termi nal and gr ound. I fcont i nui t y exi st s, r epl ace f aul t y TCC sol enoi d. I nst al l al l component si n r ever se or der of di sassembl y. Fi l l t r ansaxl e wi t h f l ui d. Er ase al lDTCs. See CLEARI NG CODES. Repeat QUI CK TEST. I f cont i nui t y does notexi st , i nst al l al l component s i n r ever se or der of di sassembl y. Fi l lt r ansaxl e wi t h f l ui d. Erase al l DTCs. See CLEARI NG CODES. Repeat QUI CK

TEST. See TROUBLE SHOOTI NG i n FORD AX4N overhaul ar t i cl e f or non-el ect r oni c sympt om di agnost i cs.

TEST D: TRANSMISSION RANGE (TR) SENSOR (1997 SABLE & TAURUS 3. 0L- 2V)

1) AX4N El ect r oni c Di agnost i cs - Di sconnect TR connect or , andi nspect i t f or damaged pi ns, cor r osi on and l oose wi r es. Repai r asnecessary. Reconnect TR connect or . Ensur e TR sensor i s cor r ect l yadj ust ed. See FORD AX4N over haul ar t i cl e. I f sensor r equi r esadj ust ment , cl ear t r oubl e codes af t er adj ust ment . See CLEARI NG CODES.Repeat QUI CK TEST. I f sensor i s cor r ect l y adj ust ed, go t o next st ep. 2) Check El ect r i cal Si gnal Oper at i on - Ensur e i gni t i on i s

of f . Di sconnect TR sensor har ness connect or. Tur n i gni t i on on. Measurevol t age between harness connect or t ermi nal s No. 2 and 3. See Fi g. 5.I f vol t age i s 4. 75- 5. 25 vol t s, go t o step 5) . I f vol t age i s not wi t hi nspeci f i cat i on, go t o next st ep. 3) Check Cont i nui t y Of TR Sensor Har ness Ci r cui t s - Tur ni gni t i on of f . Di sconnect PCM 104- pi n connect or , and i nspect i t f ordamaged pi ns, cor r osi on and l oose wi r es. Repai r as necessary. I nst al lbr eakout box, l eavi ng PCM di sconnect ed. Measure and recor d resi st ancebet ween br eakout box t est pi n t ermi nal No. 91 and TR har ness connect ort ermi nal No. 2. Measur e and r ecor d r esi st ance between breakout boxt est pi n t ermi nal No. 64 and TR har ness connect or t ermi nal No. 3. SeeFi g. 5. I f each r esi st ance i s l ess t han 5 ohms, go t o next st ep. I fany resi st ance i s more than 5 ohms, r epai r open ci r cui t . Remove

br eakout box and connect al l components. Erase al l t r oubl e codes. SeeCLEARI NG CODES. Repeat QUI CK TEST. 4) Check TR Ci r cui t For Shor t s To Power & Gr ound - Measur er esi st ance between br eakout box t est pi n No. 64 and test pi ns No. 24,51, 71, 76, 77, 91, 97 and 103. Measur e resi st ance between br eakoutbox t est pi n No. 64 and gr ound. I f each measur ement i s more t han 10k/ ohms, go t o next st ep. I f any measur ement i s l ess t han 10 k/ ohms,r epai r shor t ci r cui t . Remove br eakout box and connect al l component s.Erase al l t r oubl e codes. See CLEARI NG CODES. Repeat QUI CK TEST. 5) Check TR Sensor Resi st ance - I nst al l TR over l ay on



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t r ansmi ssi on t est er . Connect t est er t o TR sensor. Check cont i nui t y andr esi st ances i n al l posi t i ons. See TR SENSOR RESI STANCE & VOLTAGESPECI FI CATI ONS tabl e. I f TR sensor does not oper ate wi t hi nspeci f i cat i on, r epl ace sensor . Connect al l component s. Er ase al lt r oubl e codes. See CLEARI NG CODES. Repeat QUI CK TEST. I f sensoroper ates wi t hi n speci f i cat i on, r epl ace PCM. Connect al l component s.Erase al l t r oubl e codes. See CLEARI NG CODES. Repeat QUI CK TEST.

TR SENSOR RESI STANCE & VOLTAGE SPECI FI CATI ONSGear Posi t i on Ohms Vol t s

"P" . . . . . . . . . . . . . . . . . . . . . . . . 3770- 4607 . . . . . . . . . . . . . . . . . 3. 97- 4. 85"R" . . . . . . . . . . . . . . . . . . . . . . . . 1304- 1593 . . . . . . . . . . . . . . . . . 3. 24- 3. 96"N" . . . . . . . . . . . . . . . . . . . . . . . . . 660- 807 . . . . . . . . . . . . . . . . . . 2. 55- 3. 11"OD" . . . . . . . . . . . . . . . . . . . . . . . . 361- 442 . . . . . . . . . . . . . . . . . . 1. 88- 2. 30

"D" . . . . . . . . . . . . . . . . . . . . . . . . . 190- 232 . . . . . . . . . . . . . . . . . . 1. 23- 1. 51"1" . . . . . . . . . . . . . . . . . . . . . . . . . . 78- 95 . . . . . . . . . . . . . . . . . . . . . . 61- . 75

6) Check Par k/ Neut r al Ci r cui t s - Moni t or t r ansmi ssi on t est eri ndi cat or l i ght s whi l e movi ng gear shi f t l ever t hr ough al l posi t i ons.I f i ndi cat or l i ght di spl ay mat ches gear shi f t l ever posi t i on, go t onext st ep. I f i ndi cat or l i ght di spl ay does not mat ch gear shi f t l everposi t i on, r epl ace TR sensor . Connect al l component s. Er ase al l t r oubl ecodes. See CLEARI NG CODES. Repeat QUI CK TEST. 7) Check Rever se/ Back- Up Li ght Ci r cui t s - Moni t ort r ansmi ssi on t est er i ndi cat or l i ght whi l e movi ng gear shi f t l ever t oRever se posi t i on. Ver i f y i f backup l i ght s ar e i l l umi nat ed. I f

i ndi cat or l i ght di spl ay mat ches gear shi f t l ever posi t i on and back- upl i ght s oper at e cor r ectl y, syst em i s cur r ent l y oper at i ng cor r ectl y. I f i ndi cat or l i ght di spl ay does not mat ch gear shi f t l ever posi t i onand/ or backup l i ght s ar e not i l l umi nat ed, r epl ace TR sensor . Connectal l components. Erase al l t r oubl e codes. See CLEARI NG CODES. RepeatQUI CK TEST.

Fi g. 5: I dent i f yi ng Transmi ssi on Range Sensor Harness ConnectorTermi nal s ( 1997 Sabl e & Taur us 3. 0L- 2V)



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TEST D: TRANSMISSION RANGE (TR) SENSOR (1997 CONTINENTAL, 1997- 98 SABLE & TAURUS ( 3. 0- 4V & SHO)

NOTE: Act uat or por t i on of anal og TR sensor i s Bl ack behi nd manual shaf t l ever .

1) AX4N El ect r oni c Di agnost i cs - Di sconnect TR connect or , andi nspect i t f or damaged pi ns, cor r osi on and l oose wi r es. Repai r asnecessary. Reconnect TR connect or . Ensur e TR sensor i s cor r ect l yadj ust ed. See FORD AX4N over haul ar t i cl e. I f sensor r equi r esadj ust ment , cl ear t r oubl e codes af t er adj ust ment . See CLEARI NG CODES.Repeat QUI CK TEST. I f sensor i s cor r ect l y adj ust ed, go t o next st ep. 2) Check El ect r i cal Si gnal Oper at i on - Ensur e i gni t i on i sof f . Di sconnect TR sensor har ness connect or. Tur n i gni t i on on. Measure

vol t age between harness connect or t ermi nal s No. 2 and 3. See Fi g. 5.I f vol t age i s 4. 75- 5. 25 vol t s, go t o step 5) . I f vol t age i s not wi t hi nspeci f i cat i on, go t o next st ep. 3) Check Cont i nui t y Of TR Sensor Har ness Ci r cui t s - Tur ni gni t i on of f . Di sconnect PCM 104- pi n connect or , and i nspect i t f ordamaged pi ns, cor r osi on and l oose wi r es. Repai r as necessary. I nst al lbr eakout box, l eavi ng PCM di sconnect ed. Measure and recor d resi st ancebet ween br eakout box t est pi n t ermi nal No. 91 and TR har ness connect ort ermi nal No. 2. Measur e and r ecor d r esi st ance between breakout boxt est pi n t ermi nal No. 64 and TR har ness connect or t ermi nal No. 3. SeeFi g. 6. I f each r esi st ance i s l ess t han 5 ohms, go t o next st ep. I fany resi st ance i s more than 5 ohms, r epai r open ci r cui t . Removebr eakout box and connect al l components. Erase al l t r oubl e codes. See

CLEARI NG CODES. Repeat QUI CK TEST. 4) Check TR Ci r cui t For Shor t s To Power & Gr ound - Measur er esi st ance between br eakout box t est pi n No. 64 and test pi ns No. 24,51, 71, 76, 77, 91, 97 and 103. Measur e resi st ance between br eakoutbox t est pi n No. 64 and gr ound. I f each measur ement i s more t han 10k/ ohms, go t o next st ep. I f any measur ement i s l ess t han 10 k/ ohms,r epai r shor t ci r cui t . Remove br eakout box and connect al l component s.Erase al l t r oubl e codes. See CLEARI NG CODES. Repeat QUI CK TEST. 5) Check TR Sensor Resi st ance - I nst al l TR over l ay ont r ansmi ssi on t est er . Connect t est er t o TR sensor. Check cont i nui t y andr esi st ances i n al l posi t i ons. See TR SENSOR RESI STANCE & VOLTAGESPECI FI CATI ONS tabl e. I f TR sensor does not oper ate wi t hi nspeci f i cat i on, r epl ace sensor . Connect al l component s. Er ase al l

t r oubl e codes. See CLEARI NG CODES. Repeat QUI CK TEST. I f sensoroper ates wi t hi n speci f i cat i on, r epl ace PCM. Connect al l component s.Erase al l t r oubl e codes. See CLEARI NG CODES. Repeat QUI CK TEST.

TR SENSOR RESI STANCE & VOLTAGE SPECI FI CATI ONSGear Posi t i on Ohms Vol t s

"P" . . . . . . . . . . . . . . . . . . . . . . . . 3770- 4607 . . . . . . . . . . . . . . . . . 3. 97- 4. 85"R" . . . . . . . . . . . . . . . . . . . . . . . . 1304- 1593 . . . . . . . . . . . . . . . . . 3. 24- 3. 96



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"N" . . . . . . . . . . . . . . . . . . . . . . . . . 660- 807 . . . . . . . . . . . . . . . . . . 2. 55- 3. 11"OD" . . . . . . . . . . . . . . . . . . . . . . . . 361- 442 . . . . . . . . . . . . . . . . . . 1. 88- 2. 30"D" . . . . . . . . . . . . . . . . . . . . . . . . . 190- 232 . . . . . . . . . . . . . . . . . . 1. 23- 1. 51"1" . . . . . . . . . . . . . . . . . . . . . . . . . . 78- 95 . . . . . . . . . . . . . . . . . . . . . . 61- . 75

6) Check Par k/ Neut r al Ci r cui t s - Moni t or t r ansmi ssi on t est eri ndi cat or l i ght s whi l e movi ng gear shi f t l ever t hr ough al l posi t i ons.I f i ndi cat or l i ght di spl ay mat ches gear shi f t l ever posi t i on, go t onext st ep. I f i ndi cat or l i ght di spl ay does not mat ch gear shi f t l everposi t i on, r epl ace TR sensor . Connect al l component s. Er ase al l t r oubl ecodes. See CLEARI NG CODES. Repeat QUI CK TEST. 7) Check Rever se/ Back- up Li ght Ci r cui t s - Moni t ort r ansmi ssi on t est er i ndi cat or l i ght whi l e movi ng gear shi f t l ever t or ever se posi t i on. Ver i f y i f backup l i ght s ar e i l l umi nat ed. I f i ndi cat or l i ght di spl ay mat ches gear shi f t l ever posi t i on and backup

l i ght s oper at e cor r ectl y, syst em i s cur r ent l y oper at i ng cor r ectl y. I f i ndi cat or l i ght di spl ay does not mat ch gear shi f t l ever posi t i onand/ or backup l i ght s ar e not i l l umi nat ed, r epl ace TR sensor . Connectal l components. Erase al l t r oubl e codes. See CLEARI NG CODES. RepeatQUI CK TEST.

Fi g. 6: I dent i f yi ng Tr ansmi ssi on Range Sensor Termi nal s (1997Cont i nental , 1997- 98 Sabl e & Taurus ( 3. 0- 4V & SHO)



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TEST D: ANALOG/DIGITAL TRANSMISSION RANGE (TR) SENSOR (1998 CONTI NENTAL, 1998 SABLE & TAURUS 3. 0L- 2V)

NOTE: Act uat or por t i on of di gi t al TR sensor i s Tan i n col or l ocat ed behi nd manual shaf t l ever .

1) Ver i f y Di gi t al Tr ansmi ssi on Range Sensor Al i gnment - Tur ni gni t i on of f . Pl ace shi f t l ever i n par k. Ensur e TR sensor i s cor r ectl yadj ust ed. See FORD AX4N over haul ar t i cl e. I f sensor r equi r esadj ust ment , cl ear t r oubl e codes af t er adj ust ment . See CLEARI NG CODES.Repeat QUI CK TEST. I f sensor i s cor r ect l y adj ust ed, go t o next st ep. 2) I nspect Sensor Connect or - Ensur e i gni t i on i s of f . Pl aceshi f t l ever i n par k. Di sconnect TR sensor har ness connect or . I nspectcomponent and har ness connect or t ermi nal s. Repai r as needed. Cl ear

t r oubl e codes af t er adj ust ment . See CLEARI NG CODES. Repeat QUI CK TEST.I f connect or s are okay, go t o next st ep. 3) Check El ect r i cal Syst emOper at i on ( TR Sensor & PCM) -Connect NGS t est er or equi val ent t o DLC. Ensur e TR sensor harnessconnect or i s connect ed. Tur n i gni t i on on. Usi ng scan t ool , sel ect TRPI Ds, t hen TR and TR_D. Move shi f t l ever t hr ough al l posi t i ons whi l emoni t or i ng scan tool . Move shi f t l ever agai n whi l e wi ggl i ng har nessand t appi ng on TR sensor . Compar e PI Ds t o TR SENSOR PI D DATA t abl e. I fPI D dat a mat ches t abl e, pr obl emmay be i nt er mi t t ent . Cl ear t r oubl ecodes. See CLEARI NG CODES. Repeat QUI CK TEST. I f PI D data does notmatch t abl e, go t o next st ep.

TR SENSOR PI D DATA

Sel ect or Posi t i on TR TR_D

"P" . . . . . . . . . . . . . . . . . . . . . . . . . . . P/ N . . . . . . . . . . . . . . . . . . . . . . . . . 0000"R" . . . . . . . . . . . . . . . . . . . . . . . . . . . REV . . . . . . . . . . . . . . . . . . . . . . . . . 1100"N" . . . . . . . . . . . . . . . . . . . . . . . . . . NTRL . . . . . . . . . . . . . . . . . . . . . . . . . 0110"OD" . . . . . . . . . . . . . . . . . . . . . . . . . . O/ D . . . . . . . . . . . . . . . . . . . . . . . . . 1111"D" . . . . . . . . . . . . . . . . . . . . . . . . . . MAN2 . . . . . . . . . . . . . . . . . . . . . . . . . 1001"1" . . . . . . . . . . . . . . . . . . . . . . . . . . MAN1 . . . . . . . . . . . . . . . . . . . . . . . . . 0011

4) Check Di gi t al Transmi ssi on Range Sensor Oper at i on -I nst al l di gi t al TR over l ay on t r ansmi ssi on t est er . Connect t est er t o

TR sensor . Per f or m SENSOR t est . Fol l ow t est er i nst r uct i ons. I f t est erst at us l i ght mat ches gear posi t i on, go t o next st ep. I f t est er st at usl i ght does not mat ch gear posi t i on, r epl ace di gi t al TR sensor . Cl eart r oubl e codes af t er adj ust ment . See CLEARI NG CODES. Repeat QUI CK TEST. 5) Check PCM Har ness For Open Ci r cui t s - Tur n i gni t i on of f .Di sconnect PCM 104- pi n connect or , and i nspect i t f or damaged pi ns,cor r osi on and l oose wi r es. Repai r as necessary. I nst al l br eakout box,l eavi ng PCM di sconnect ed. Di sconnect TR harness connector . Measure andr ecor d r esi st ance bet ween speci f i ed br eakout box t est pi n t ermi nal andTR sensor harness connect or t er mi nal . See PCM- TO- TR SENSOR OPEN



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CI RCUI T TEST TERMI NAL I DENTI FI CATI ON t abl e. I f each r esi st ance i s l esst han 5 ohms, go t o next st ep. I f any r esi st ance i s more than 5 ohms,r epai r open ci r cui t . Remove br eakout box and connect al l component s.Erase al l t r oubl e codes. See CLEARI NG CODES. Repeat QUI CK TEST.

PCM- TO- TR SENSOR OPEN CI RCUI T TEST TERMI NAL I DENTI FI CATI ONPCM Test Pi n TR Sensor Pi n

91 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

6) Check PCM Harness Ci r cui t s For Shor t To Gr ound Or Power -Measur e and r ecord resi st ance between br eakout box t est pi n No. 91 andt est pi ns No. 71 and 97. Measur e and r ecor d r esi st ance betweenbreakout box t est pi ns No. 3, 49, 50, 64 and br eakout box power andground t est pi ns. I f each measur ement i s more than 10 k/ ohms, go t onext st ep. I f any measurement i s l ess t han 10 k/ ohms, r epai r shor tci r cui t . Remove br eakout box and connect al l components. Erase al lt r oubl e codes. See CLEARI NG CODES. Repeat QUI CK TEST. 7) Check For Shor t Bet ween TR/ PCM I nput Si gnal Ci r cui t s -Measur e and r ecord resi st ance between br eakout box t est pi n No. 3 andt est pi ns No. 49, 50 and 64. Measure and recor d resi st ance betweenbr eakout box t est pi n No. 50 and test pi ns No. 3, 49, and 64. Measureand recor d resi st ance between br eakout box t est pi n No. 64 and test

pi ns No. 3, 49 and 50. I f each measurement i s more than 10 k/ ohms,r epl ace PCM. I f any measurement i s l ess t han 10 k/ ohms, r epai r shor tci r cui t . Remove br eakout box and connect al l components. Erase al lt r oubl e codes. See CLEARI NG CODES. Repeat QUI CK TEST. 8) Check Non- PCM I nt er nal Ci r cui t Of Di gi t al TR Sensor -I nst al l di gi t al TR over l ay on t r ansmi ssi on t est er . Connect t est er t oTR sensor . Per f or m SWI TCH t est . Fol l ow t est er i nst r uct i ons. I f t est erst at us l i ght mat ches gear posi t i on, pr obl em i s not i n di gi t al TRsensor . For st ar t i ng or backup l i ght pr obl ems, see appr opr i at ear t i cl e i n appr opr i at e secti on. I f t ester st at us l i ght does not mat chgear posi t i on, r epl ace di gi t al TR sensor . Cl ear t r oubl e codes af t eradj ust ment . See CLEARI NG CODES. Repeat QUI CK TEST.

TEST E: ELECTRONIC PRESSURE CONTROL (EPC) SOLENOID

1) AX4N El ect r oni c Di agnost i cs - Ensur e t r ansaxl e harnessconnect or i s i n accept abl e condi t i on. Repai r as necessar y. Ensur et r ansaxl e harness connect or i s f ul l y seated. Connect NGS t est er orequi val ent t o DLC. Per f or m KOEO t est unt i l Cont i nuous Memory t r oubl ecode( s) have been di spl ayed. See QUI CK TEST. Ent er out put t est mode.See ADDI TI ONAL SYSTEM FUNCTI ONS. Sel ect ALL ON mode. Push START t ot urn output s ON. Push STOP to out puts OFF. I f vehi cl e ent ers out putst at e, go t o next st ep. I f vehi cl e wi l l not ent er out put st at e, see



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1997 Ford Taurus

appropr i at e G - TESTS W/ CODES ar t i cl e i n ENGI NE PERFORMANCE sect i on. 2) Check El ect r i cal Si gnal Oper at i on - Tur n i gni t i on of f .Di sconnect t r ansaxl e harness connect or. I nspect condi t i on of connect orand repai r as needed. Tur n i gni t i on on. Usi ng DVOM, connect posi t i vel ead t o t r ansaxl e har ness connect or t er mi nal No. 7. See Fi g. 4.Connect negat i ve l ead t o t ermi nal No. 10. Whi l e moni t ori ng DVOM, pr essSTART and STOP t o cycl e sol enoi d output on and of f . I f vol t age changesat l east . 5 vol t , go t o st ep 5) . I f vol t age i s unaf f ected, go t o nextst ep. 3) Check Cont i nui t y Of Sol enoi d Si gnal & VPWR HarnessCi r cui t s - Ensur e i gni t i on i s of f . Di sconnect PCM 104- pi n connect or ,and i nspect i t f or damaged pi ns, cor r osi on and l oose wi r es. Repai r asnecessary. I nst al l br eakout box, l eavi ng PCM di sconnect ed. Measure andr ecor d r esi st ance between t est pi ns No. 71 and 97 and t r ansaxl eharness connect or t ermi nal s No. 2 and 7. Measure and r ecor d resi st ancebetween t est pi n No. 81 and t r ansaxl e harness connector t ermi nal No.

10. I f any r esi st ance i s gr eat er t han 5 ohms, r epai r open ci r cui t .Connect al l component s. Di sconnect breakout box and r epeat QUI CK TEST.I f each r esi st ance i s 5 ohms or l ess, go to next st ep. 4) Check Sol enoi d Harness For Shor t s To Power & Gr ound -Measur e and r ecord resi st ance between br eakout box t est pi n No. 81 andt est pi ns No. 71 and 97. Measure and r ecor d resi st ance between chassi sgr ound and test pi n No. 81 and between test pi ns No. 24, 51, 76, 77,91 and 103. I f any resi st ance i s l ess than 10 k/ ohms, r epai r shor tci r cui t . Connect al l component s. Di sconnect br eakout box an

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Taurus 97 Diagnostico Electronico