2007 Civic Hybrid 61SNC01_04 - Engine Electrical (2013_03_08 01_27_35 UTC)

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SUPPLEMENTAL RESTRAINT SYSTEM (SRS) (If engine electrical maintenance is required)

INTEGRATED MOTOR ASSIST (IMA) SYSTEM (If engine electrical maintenance is required)

The Civic Hybrid SRS includes a driver’s airbag in the steering wheel hub, a passenger’s airbag in the dashboardabove the glove box, seat belt tensioners in the front seat belt retractors, seat belt buckle tensioners in the front seatbelt buckles, side curtain airbags in the sides of the roof, and side airbags in the front seat-backs. Informationnecessary to safely service the SRS is included in this Service Manual. Items marked with an asterisk ( ) on thecontents page include or are located near SRS components. Servicing, disassembling, or replacing these itemsrequires special precautions and tools, and should be done only by an authorized Honda dealer.

• To avoid rendering the SRS inoperative, which could lead to personal injury or death in the event of a severe frontalor side collision, all SRS service work should be done by an authorized Honda dealer.

• Improper service procedures, including incorrect removal and installation of the SRS, could lead to personal injurycaused by unintentional deployment of the airbags and/or side airbags.

• Do not bump or impact the SRS unit, front impact sensors, or side impact sensors when the ignition switch is ON (II),or for at least 3 minutes after the ignition switch is turned OFF; otherwise, the system may fail in a collision, or theairbags may deploy.

• SRS electrical connectors are identified by yellow color coding. Related components are located in the steeringcolumn, front console, dashboard, dashboard lower panel, in the dashboard above the glove box, in the front seats,in the roof side, and around the floor. Do not use electrical test equipment on these circuits.

IMA components are located in this area. The IMA is a high-voltage system. The high voltage cables and their coversare identified by orange coloring. The safety labels are attached to high voltage and other related parts (see page 1-5).You must be familiar with the IMA system before working around it. Make sure you have read the Service Precautionsin the IMA section before performing repairs or service (see page 12-3).

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Engine Electrical

Starting System

Ignition System

Charging System

Cruise Control

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Component Location Index . 4-2Symptom Troubleshooting Index . 4-3Circuit Diagram . 4-4Starter Circuit Troubleshooting . 4-5Starter Performance Test . 4-9Starter Removal and Installation . 4-10Starter Overhaul . 4-11

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Component Location Index . 4-16Circuit Diagram . 4-17Ignition Timing Inspection . 4-18Ignition Coil Removal/Installation . 4-19Ignition Coil Relay Circuit Troubleshooting . 4-20Spark Plug Inspection . 4-22

Refer to the IMA Section 12

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Component Location Index . 4-23Symptom Troubleshooting Index . 4-24Circuit Diagram . 4-26Cruise Control Input Test . 4-27Cruise Control Combination Switch

Test/Replacement . 4-29

06/09/19 10:37:37 61SNC010_040_0002

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4-2

Starting System

Component Location Index

UNDER-DASHFUSE/RELAY BOX

STARTER CUT RELAY

STARTER

BATTERY

Test, page 22-59

Circuit Troubleshooting, page 4-5Performance Test, page 4-9Removal and Installation, page 4-10Overhaul, page 4-11

Test, page 22-58

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Symptom Diagnostic procedure Also check for

4-3

Symptom Troubleshooting Index

Engine does not start(does not crank)

1.2.3.4.5.6.

Check for loose battery terminals or connections.Test the 12 V battery for a low charge (see page 22-58).Check the starter (see page 4-5).Check the starter cut relay (see page 22-59).Check the transmission range switch (see page 14-242).Check the ignition switch or wire (see page 22-61).

Engine cranks, but doesnot start

1.2.3.4.

5.6.7.

Check for PGM-FI DTCs (see page 11-3).Check the fuel pressure (see page 11-361).Check for a plugged fuel filter (see page 11-374).Check for a plugged or damaged fuel line (see page11-363).Check the throttle body (see page 11-380).Check for low engine compression (see page 6-6).Check for a damaged or broken cam chain.

Engine is hard to start 1.2.3.4.

Check for PGM-FI DTCs (see page 11-3).Check the fuel pressure (see page 11-361).Check for a plugged fuel filter (see page 11-374).Check for a plugged or damaged fuel line (see page11-363).

Engine cranks slowly 1.2.3.4.5.

Check for loose battery terminals or connections.Test the 12 V battery for a low charge (see page 22-58).Check the starter for binding (see page 4-5).Check for excessive drag in the engine.Check for excessive drag in the transmission.

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4-4

Starting System

Circuit Diagram

BLK/RED

TRANSMISSIONRANGE SWITCH

41

32

ST HOT in START (III)

BLK/WHT

WHT

WHT

STARTER

YEL

RED WHT

UNDER-HOOD FUSE/RELAY BOX12 VBATTERY

No. 2 (50 A)No. 1 (100 A)

ST

BAT

IGNITION SWITCH

B S

UNDER-DASH FUSE/RELAY BOX

STARTERCUTRELAY(ST CUT)

12 V

BLU/BLK

STC STS

PCM

B12 B13

TRANSMISSIONRANGE SWITCH

LT BLU

A12 A7

H1

C1

1

3

G9 F29

C102

ATPN ATPP

Q15No. 23 (7.5 A)

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YES

NO

YES

NO

4-5

Starter Circuit Troubleshooting

NOTE:• Air temperature must be between 59 and 100 °F

(15 and 38 °C) during this procedure.• After the inspection, you must reset the powertrain

control module (PCM). Otherwise, the PCM willcontinue to stop the fuel injectors from functioning.

• The 12 V battery must be in good condition and fullycharged.

1. Hook up the following equipment:

• Ammeter, 0 400 A• Voltmeter, 0 20 V (accurate within 0.1 V)

2. Connect the Honda Diagnostic System (HDS) to thedata link connector (DLC) (see step 2 on page 11-3).

3. Turn the ignition switch ON (II).

4. Make sure the HDS communicates with the vehicleand the PCM. If it doesn’t communicate,troubleshoot the DLC circuit (see page 11-218).

5. Select PGM-FI, INSPECTION, then ALL INJECTORSOFF on the HDS.

6. Remove the No. 61 B IMA 2 (10 A) fuse in theauxiliary under-hood fuse/relay box.

7. Set the parking brake, then with the shift lever inthe N or P position, turn the ignition switch toSTART (III).

The starting system is OK. Go to step 29.

Go to step 8.

8. Check the 12 V battery condition (see page 22-58).Check electrical connections at the battery, thenegative battery cable to body, the engine groundcables, and the starter for looseness and corrosion.Then try starting the engine again.

Repairing the loose connection corrected theproblem. The starting system is OK. Go to step 29.

Check the following:

• If the starter will not crank the engine at all, go tostep 9.

• If the starter cranks the engine erratically or tooslowly, go to step 26.

• If the starter does not disengage from theflywheel ring gear when you release the key,replace the starter, or remove and disassemble it,and check for the following:– Starter solenoid and switch malfunction– Dirty drive gear or damaged overrunning

clutch

(cont’d)

Does the starter crank the engine normally?

Does the starter crank the engine?

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YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

4-6

Starting System

Starter Circuit Troubleshooting (cont’d)

B

A

STARTER CUT RELAY 4P SOCKET

9. Remove the air cleaner assembly (see page 11-381).

10. Remove the intake air duct (see step 9 on page 5-3).

11. Make sure the shift lever is in the P or N position,and set the parking brake. Disconnect the BLK/WHTharness connector (A) from the starter solenoid Sterminal (B). Connect a jumper wire from thebattery positive terminal to the solenoid terminal.

Go to step 12.

Remove the starter, and repair or replace it asnecessary.

12. Check the No. 23 (7.5 A) fuse in the under-dash fuse/relay box.

Reinstall the No. 23 (7.5 A) fuse in the under-dash fuse/relay box. Go to step 13.

Replace the fuse. If the fuse continues to blow,locate and repair the short in the circuit betweenthe under-dash fuse/relay box and the PCM.

13. Remove the starter cut relay from the under-dashfuse/relay box, and test it (see page 22-59).

Go to step 14.

Replace the starter cut relay.

14. Check the ignition switch (see page 22-61).

Go to step 15.

Replace the ignition switch.

15. Measure the voltage between starter cut relay 4Psocket terminal No. 2 and body ground with theignition switch in START (III).

Go to step 16.

Repair open in the wire between the under-dash fuse/relay box and the ignition switch. If thewire is OK, replace the under-dash fuse/relaybox.

Terminal side of female terminals


Is the fuse OK ?

Is the relay OK ?

Is the ignition switch OK ?

Is there battery voltage?

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YES

NO

YES

NO

YES

NO

4-7



JUMPERWIRE


16. Check for continuity between starter cut relay 4Psocket terminal No. 1 and body ground.

Repair short to ground in the wire betweenthe under-dash fuse/relay box and the starter.

Go to step 17.

17. Connect the BLK/WHT harness connector to thestarter solenoid S terminal.

18. Connect the starter cut relay 4P socket terminalsNo. 1 and No. 2 with a jumper wire, and turn theignition switch to START (III).

Go to step 19.

Repair open in the wire between the under-dash fuse/relay box and the starter.

19. Remove the jumper wire.

20. Measure the voltage between starter cut relay 4Psocket terminal No. 3 and body ground with theignition switch turned to START (III).

Go to step 21.

Replace the under-dash fuse/relay box.

21. Reinstall the starter cut relay.

22. Turn the ignition switch ON (II), and jump the SCSline with the HDS, then turn the ignition switch OFF.

NOTE: This must be done to protect the PCM fromdamage.

23. Disconnect PCM connector A (44P).

(cont’d)



Terminal side of female terminalsIs there continuity?



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YES

NO

YES

NO

YES

NO

YES

NO

4-8

Starting System

Starter Circuit Troubleshooting (cont’d)

PCM CONNECTOR A (44P)

STC(WHT)

STS (LT BLU)


24. Measure the voltage between PCM connectorterminal A12 and body ground with the ignitionswitch turned to START (III).

Go to step 25.

Repair open in the WHT wire between theunder-dash fuse/relay box and the PCM. If the wireis OK, replace the under-dash fuse/relay box.

25. Measure the voltage between PCM connectorterminal A7 and body ground with the ignitionswitch turned to START (III).

Update the PCM if it does not have the latestsoftware (see page 11-7), or substitute a known-good PCM (see page 11-8), then recheck. If thesymptom/indication goes away with a known-goodPCM, replace the original PCM (see page 11-241).

Check for open in the wire(s) between theunder-dash fuse/relay box and the PCM.

26. While cranking the engine, check the crankingvoltage and current draw.

Go to step 27.

Replace the starter, or remove anddisassemble it, and check for the following:

• Drag in the starter armature• Shorted armature winding• Excessive drag in the engine

27. Check the engine speed while cranking the engine.

Go to step 28.

Replace the starter, or remove anddisassemble it, and check for the following:

• Open circuit in starter armature commutatorsegments

• Excessively worn starter brushes• Open circuit in the starter brushes• Dirty or damaged helical splines or drive gear• Faulty overrunning clutch

28. Remove the starter, and inspect its drive gear andflywheel ring gear for damage. Replace anydamaged parts.

29. Select PCM reset (see page 11-4) to cancel ALLINJECTORS OFF on the HDS.

30. Install the No. 61 B IMA 2 (10 A) fuse in theauxiliary under-hood fuse/relay box.

31. If the IMA battery level gauge (BAT) displays nosegment, start the engine, and hold it between3,500 rpm and 4,000 rpm without load (in Park orNeutral) until the BAT displays at least threesegments.

32. Do the start clutch pressure control calibrationprocedures (see page 14-204).





Is the cranking voltage greater than or equal to8.5 V and is the current draw less than or equal to350 A?

Is the engine speed above 100 rpm?

06/09/19 10:37:42 61SNC010_040_0009

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Specification

Electric Current: 80 A or less

4-9

Starter Performance Test

BODY

(GROUND)

S

BODY

(GROUND)

STARTER

S

B

1. Disconnect the BLK/WHT harness connector fromthe S terminal.

2. Make a connection for this test using the thickest(gauge) wire possible (preferably the same gaugeas used on the vehicle).

NOTE: To avoid damaging the starter, never leavethe battery connected for more than 5 seconds.

3. Connect the battery as shown. If the starter pinionmoves out, it is working properly.

4. Disconnect the negative battery terminal from thebody as shown. If the pinion retracts immediately,it is working properly.

5. Remove the starter (see page 4-10).

6. Firmly clamp the starter in a vise.

7. Connect the starter to the battery as shown, andmake sure the motor turns and keeps rotating.

8. If the electric current meets the specification whenthe battery voltage is at 11.5 V, the starter isworking properly.

06/09/19 10:37:43 61SNC010_040_0010

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Removal Installation

4-10

Starting System

Starter Removal and Installation

A

B

C

A

B

8 x 1.25 mm9 N·m(0.9 kgf·m, 7 lbf·ft)

6 x 1.0 mm9.8 N·m (1.0 kgf·m, 7.2 lbf·ft)

10 x 1.25 mm44 N·m(4.5 kgf·m, 33 lbf·ft)

C

1. Make sure you have the anti-theft codes for theaudio system and navigation system (if equipped).

2. Disconnect the negative cable from the battery first,then disconnect the positive cable.

3. Remove the battery and battery box.

4. Remove the air cleaner assembly (see page 11-381).

5. Remove the intake air duct (see step 9 on page 5-3).

6. Disconnect the starter cable (A) from the B terminaland the BLK/WHT harness connector (B) from the Sterminal, then remove the upper radiator hosebracket (C).

7. Remove the two bolts holding the starter, thenremove the starter.

1. Install the starter, then install the starter mountingbolts.

2. Connect the starter cable (A) to the B terminal andthe BLK/WHT harness connector (B) to the Sterminal, then install the upper radiator hosebracket (C). Make sure the crimped side of the ringterminal is facing out.

3. Install the intake air duct (see step 53 on page 5-20).

4. Install the air cleaner assembly (see page 11-381).

5. Install the battery and battery box.

6. Clean the battery posts and cable terminals, thenassemble them, and apply grease to preventcorrosion.

7. Start the engine to make sure the starter operatesproperly.

8. Enter the anti-theft codes for the audio system andnavigation system (if equipped).

9. Set the clock.

10. If the IMA battery level gauge (BAT) displays nosegments, start the engine, and hold it between3,500 rpm and 4,000 rpm without load (in Park orNeutral) until the BAT displays at least threesegments.

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Disassembly/Reassembly

4-11

Starter Overhaul

INTERNAL GEAR UNIT

SWITCH PLUNGER

GEAR PLUNGER

GEAR COVER ASSEMBLY

PUSH NUT

BRUSH HOLDER

BRUSH SPRING

SWITCH SHAFT

DRIVE PLATE

PLANETARY GEAR

ARMATURE

ARMATURE HOUSING

END COVER

(cont’d)

(Apply molybdenumdisulfide.)

(Apply molybdenumdisulfide.)

06/09/19 10:37:44 61SNC010_040_0012

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Armature Inspection and Test

Commutator Diameter

Standard (New): 28.0 28.1 mm (1.102 1.106 in.)

Service Limit: 27.5 mm (1.083 in.)

Commutator Runout

Standard (New): 0.02 mm (0.001 in.) max.


4-12

Starting System

Starter Overhaul (cont’d)

A

B

A

1. Remove the starter (see page 4-10).

2. Disassemble the starter as shown at the beginningof this procedure.

3. Inspect the armature for wear or damage fromcontact with the permanent magnet. If there is wearor damage, replace the armature.

4. Check the commutator (A) surface. If the surface isdirty or burnt, resurface it with an emery cloth or alathe to the following specifications, or reconditionwith 500 or 600 sandpaper (B).

5. Check the commutator diameter. If the diameter isbelow the service limit, replace the armature.

6. Measure the commutator (A) runout.

• If the commutator runout is within the servicelimit, check the commutator for carbon dust orbrass chips between the segments.

• If the commutator runout is not within the servicelimit, replace the armature.

06/09/19 10:37:45 61SNC010_040_0013

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－－Commutator Mica Depth



4-13

A

B CD

C

B

A

A

BC

7. Check the mica depth (A). If the mica is too high (B),undercut the mica with a hacksaw blade to theproper depth. Cut away all the mica (C) betweenthe commutator segments. The undercut shouldnot be too shallow, too narrow, or V-shaped (D).

8. Check for continuity between the segments of thecommutator. If there is an open circuit between anysegments, replace the armature.

9. Place the armature (A) on an armature tester (B).Hold a hacksaw blade (C) on the armature core. Ifthe blade is attracted to the core or vibrates whilethe core is turned, the armature is shorted. Replacethe armature.

10. Use an ohmmeter to check for continuity betweenthe commutator (A) and the armature coil core (B),and between the commutator and the armatureshaft (C). If there is continuity, replace the armature.

(cont’d)

06/09/19 10:37:46 61SNC010_040_0014

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Starter Brush Inspection

Brush Length



Starter Brush Holder Test

Planetary Gear Inspection

4-14

Starting System

Starter Overhaul (cont’d)

A

B

B

A

11. Measure the brush length. If it is not within theservice limit, replace the brush holder assembly.

12. Check for continuity between the ( ) brush (A) and( ) brush (B). If there is continuity, replace thebrush holder assembly.

13. Check the planetary gears (A) and ring gear (B).Replace them if they are worn or damaged.

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Overrunning Clutch Inspection Starter Reassembly

4-15

B

A

A

E

F

D

C

B

14. Holding the drive gear (A), turn the gear shaft (B)clockwise. Check that the drive gear comes out tothe other end. If the drive gear does not movesmoothly, replace the gear cover assembly.

15. Holding the drive gear, turn the gear shaftcounterclockwise. The gear shaft should rotatefreely. If the gear shaft does not rotate smoothly,replace the gear cover assembly.

16. If the starter drive gear is worn or damaged,replace the overrunning clutch assembly; the gearis not available separately. Check the condition ofthe flywheel ring gear. Replace it if the starter drivegear teeth are damaged.

17. Install the brush into the brush holder, and set thearmature (A) in the brush holder (B).

NOTE: To seat the new brushes, slip a strip of 500or 600 sandpaper, with the grit side up, betweenthe commutator and each brush, and smoothlyrotate the armature. The contact surface of thebrushes will be sanded to the same contour as thecommutator.

18. Squeezing a spring (C), insert it in the hole on thebrush holder, and push it until it bottoms. Repeatthis for the other three springs (D, E, and F).

19. Install the armature and brush holder assemblyinto the housing.

NOTE: Make sure the armature stays in the holder.

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4-16

Ignition System


UNDER-HOOD FUSE/RELAY BOX

IGNITION COIL RELAY

SPARK PLUG IGNITION COIL

Circuit Troubleshooting,page 4-20

Inspection, page 4-22 Ignition Timing Inspection, page 4-18Removal/Installation, page 4-19

06/09/19 10:37:49 61SNC010_040_0017

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4-17

Circuit Diagram

PCM

C18

5 V

C17 C16 C15

IGPLS4I IGPLS3I IGPLS2I IGPLS1I

YEL YEL YEL WHT

No. 1BLK

ICM

C23C24

ICM

BLKNo. 2

WHT/GRNWHT/BLK

C25

No. 3BLK

ICM

YELWHT/BLU

ICM

BLKNo. 4

C19

SPARKPLUGS

EXHAUSTSIDEIGNITIONCOILS

A6

YEL

2

1 3

IGPLS1EIGPLS2EIGPLS3EIGPLS4E MRLY

6C101 C101

8

F9 E10 E9

222

1 31 31 3

1 31 31 31 3


(15 A)No. 14

BLK/WHT

No. 1

YEL/GRN

G102

No. 4

BRN

ICM

WHT/RED

ICM

BRN

No. 3

BLK/RED BLU/RED

No. 2

BRN

ICM ICM

BRN

BLK/WHT

BLU

No. 18 (20 A)

IGNITION COIL RELAY (IG COIL)

No. 13(15 A)

ICM: Ignition Control Module

SPARKPLUGS

INTAKESIDEIGNITIONCOILS

12 VBATTERY

2 1

34

BLK/WHTBLK/WHTBLK/WHT

WHTGRN

2222

06/09/19 10:37:50 61SNC010_040_0018

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±Ignition Timing

10 2 ° BTDC (RED mark (B)) at idle in Park or

Neutral

4-18

Ignition System

Ignition Timing Inspection

A B

1. Connect the Honda Diagnostic System (HDS) to thedata link connector (DLC) (see step 2 on page 11-3),and check for DTCs. If a DTC is present, diagnoseand repair the cause before inspecting the ignitiontiming.


3. Make sure the HDS communicates with the vehicleand the powertrain control module (PCM). If itdoesn’t communicate, go to the DLC circuittroubleshooting (see page 11-218).

4. Start the engine. Hold the engine speed at3,000 rpm with no load (in Park or Neutral) until theradiator fan comes on, then let it idle.

5. Check the idle speed (see page 11-342).

6. Jump the SCS line with the HDS.

7. Connect the timing light to the exhaust side No. 1ignition coil harness.

8. Aim the light toward the pointer (A) on the camchain case. Check the ignition timing under a noload condition (headlights, blower fan, rear windowdefogger, and air conditioner are turned off).

9. If the ignition timing differs from the specification,check the cam timing. If the cam timing is OK,update the PCM if it does not have the latestsoftware (see page 11-7), or substitute a known-good PCM (see page 11-8), then recheck. If thesystem works properly, and the PCM wassubstituted, replace the original PCM (see page11-241).

10. Disconnect the HDS and the timing light.

06/09/19 10:37:51 61SNC010_040_0019

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4-19

Ignition Coil Removal/Installation

6 x 1.0 mm9.8 N·m (1.0 kgf·m, 7.2 lbf·ft)

A

B

1. Remove the engine cover (see step 7 on page 5-3).

2. Disconnect the ignition coil connectors, thenremove the intake side ignition coils (A) andexhaust side ignition coils (B).

3. Install the ignition coils in the reverse order ofremoval.

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－

－

－

－

－

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

4-20

Ignition System

Ignition Coil Relay Circuit Troubleshooting

IGNITION COIL RELAY 4P SOCKET


EACH IGNITION COIL 3P CONNECTOR

IGNITION COIL 3P CONNECTOR

1. Check the No. 18 (20 A) fuse in the under-hoodfuse/relay box.

Go to step 2.

Replace the fuse. If the fuse continues to blow,locate and repair the short in the circuit betweenthe under-hood fuse/relay box and the ignitioncoils.

2. Install the No. 18 (20 A) fuse in the under-hood fuse/relay box.

3. Remove the ignition coil relay from the under-hoodfuse/relay box, and test it (see page 22-59).

Go to step 4.

Replace the ignition coil relay.

4. Measure the voltage between ignition coil relay 4Psocket terminal No. 2 and body ground, thenterminal No. 4 and body ground.

Go to step 5.

Replace the under-hood fuse/relay box.

5. Check for continuity between ignition coil relay 4Psocket terminal No. 1 and each ignition coil 3Pconnector terminal No. 3.

Go to step 6.

Repair open in the wire between ignition coilrelay 4P socket terminal No. 1 and each ignition coil3P connector terminal No. 3.

6. Check for continuity between each ignition coil 3Pconnector terminal No. 2 and body ground.

Go to step 7.

Repair open in the wire between ignition coil3P connector terminal No. 2 and body ground.


Terminal side offemale terminals

Wire side offemale terminals

Wire side of female terminals

Is the fuse OK ?

Is the relay OK ?


Is there continuity?


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＊０４

＊０５

－

－

－

－

YES

NO

YES

NO

4-21


MRLY (GRN)



7. Connect the Honda Diagnostic System (HDS) to thedata link connector (DLC) (see step 2 on page 11-3).


9. Make sure the HDS communicates with the vehicleand the powertrain control module (PCM). If itdoesn’t communicate, go to the DLC circuittroubleshooting (see page 11-218).

10. Jump the SCS line with the HDS, then turn theignition switch OFF.

NOTE: This step must be done to protect the PCMfrom damage.

11. Disconnect PCM connector A (44P).

12. Check for continuity between ignition coil relay 4Psocket terminal No. 3 and body ground.

Repair short to ground in the wire betweenignition coil relay 4P socket terminal No. 3 and thePCM (A6).

Go to step 13.

13. Check for continuity between ignition coil relay 4Psocket terminal No. 3 and PCM connector terminalA6.

The system is OK at this time. Check forloose or poor connections at the ignition coil relayand the PCM (A6).

Repair open in the wire between ignition coilrelay 4P socket terminal No. 3 and the PCM (A6).


Terminal side offemale terminals




06/09/19 10:38:16 61SNC010_040_0022

０１

０２

０３

ＳＮＣ７Ａ００Ａ２６１０００５５９０１ＭＡＡＴ００

－－Electrode Gap


Spark Plugs: ILFR6J11K (NGK)

SK20HPR-L11 (DENSO)

4-22

Ignition System

Spark Plug Inspection

• Improper gap• Oil-fouling• Carbon deposits• Cracked centerelectrode insulator

Worn or deformedelectrodes

Damagedgasket

Crackedinsulator

A

A

1. Remove the spark plugs and inspect the electrodesand the ceramic insulator.

• Burned or worn electrodes may be caused by:– Advanced ignition timing– Loose spark plug– Plug heat range too hot– Insufficient cooling

• Fouled plugs may be caused by:– Retarded ignition timing– Oil in combustion chamber– Incorrect spark plug gap– Plug heat range too cold– Excessive idling/low speed running– Clogged air cleaner element– Deteriorated ignition coils

2. If the spark plug electrode is dirty or contaminated,clean the electrode with a plug cleaner.

NOTE:• Do not use a wire brush or scrape the iridium

electrode since this will damage the electrode.• When using a sandblaster spark plug cleaner, do

not clean for more than 20 seconds to avoiddamaging the electrode.

3. Do not adjust the gap of iridium tip plugs (A);replace the spark plug if the gap is out ofspecification.

4. Replace the plug at the specified interval, or if thecenter electrode is rounded (A). Use only the listedspark plugs.

5. Apply a small amount of anti-seize compound tothe plug threads, and screw the plugs into thecylinder head, finger-tight. Torque them to 18 N·m(1.8 kgf·m, 13 lbf·ft).

06/09/19 10:38:17 61SNC010_040_0023

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＊０２

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［］［］

4-23

Cruise Control


BRAKE PEDAL POSITION SWITCH

CRUISE MAIN INDICATORBuilt into gauge control module (TACH) CRUISE CONTROL INDICATOR

Built into gauge control module (TACH)

CRUISE CONTROLCOMBINATION SWITCH

POWERTRAINCONTROL MODULE (PCM)

TRANSMISSION RANGE SWITCH

Test, page 22-158Pedal Height Adjustment, page 19-6

Test/Replacement, page 4-29

Cruise Control Input Test,page 4-27

Test, page 14-242

06/09/19 10:38:18 61SNC010_040_0024

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4-24

Cruise Control

Symptom Troubleshooting Index

•

•

Cruise control cannot beset

1.2.

3.4.

Check for PGM-FI and body DTCs.Check the No. 12 (15 A) fuse in the under-hood fuse/relay box, and No. 3 (10 A) fuse in the under-dash fuse/relay box.Do the cruise control input test (see page 4-27).Do the cruise control combination switch test (see page4-29).

Cruise control can be set,but the cruise mainindicator does not comeon

1.2.

Check for PGM-FI and body DTCs.Do the gauge control module (TACH) self-diagnosticfunction procedure (see page 22-209).

Faulty gauge controlmodule (TACH)

Cruise control can be set,but the cruise controlindicator does not comeon

1.2.

3.

Check for PGM-FI and body DTCs.Do the gauge control module (TACH) self-diagnosticfunction procedure (see page 22-209).Do the cruise control input test (see page 4-27).Test the cruise control indicator signal input.

Faulty gauge controlmodule (TACH)

Vehicle does notdecelerate or accelerateaccordingly when the set/decel or resume/accelswitch is pressed

1.2.

3.

Check for PGM-FI and body DTCs.Do the cruise control input test (see page 4-27).Test the cruise control set/decel, resume/accel switchsignal input.Do the cruise control combination switch test (see page4-29).

Open circuit, loose ordisconnectedterminals: LT GRN orORN

Set speed does notcancel when the brakepedal is pressed

1.2.

3.

Check for PGM-FI and body DTCs.Do the cruise control input test (see page 4-27).Test the brake pedal position switch signal input.Do the brake pedal position switch test (see page22-158).

Short to power onthe BRN wireFaulty brake pedalposition switch

Set speed does notcancel when the cruisecontrol main switch ispressed

1.2.

3.

Check for PGM-FI and body DTCs.Do the cruise control input test (see page 4-27).Test the cruise control main switch signal input.Do the cruise control combination switch test (see page4-29).

Short to ground on theYEL wire

Set speed does notcancel when the cancelswitch is pressed

1.2.

3.

Check for PGM-FI and body DTCs.Do the cruise control input test (see page 4-27).Test the cruise control cancel switch signal input.Do the cruise control combination switch test (see page4-29).

Open circuit, loose ordisconnectedterminals: LT GRN orORN

06/09/19 10:38:19 61SNC010_040_0025


4-25

•

•

Set speed will notresume when theresume/accel switch ispressed (with the cruisecontrol main switchturned on, and set speedtemporarily canceled bypressing the brake pedal)

1.2.

3.

4.

Check for PGM-FI and body DTCs.Check the brake pedal position switch adjustment.(see page 19-6).Do the cruise control input test (see page 4-27).Test the cruise control resume/accel switch signal input.Test the brake pedal position switch signal input.Do the cruise control combination switch test (see page4-29).

Faulty brake pedalposition switchOpen circuit, loose ordisconnectedterminals: ORN wire

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ＳＮＣ７Ａ００Ａ１４５００００００００ＥＡＡＴ００

＋－

4-26

Cruise Control

Circuit Diagram


12 VBATTERY No. 1 (100 A) No. 21 (15 A)

No. 12(15 A)

HORN RELAY

No. 19 (15 A)

No. 2 (50 A)

WHT

BATIG1

IG1 HOT inON (II) andSTART (III)

ELECTRONIC THROTTLE CONTROLSYSTEM (ETCS) CONTROL RELAY

RED

No. 3(10 A)

3

4

2

4

2

3

1

1

CABLEREEL

HORNSWITCH

ORN

HORN

LT GRN WHT/GRN

BRAKEPEDALPOSITIONSWITCH

12MICUBRAKE LIGHTS

3

GRN

LT BLU

CRUISECONTROLDIMMINGCIRCUIT

RED

VCC3

TP SENSOR A/B

THROTTLEACTUATOR

THROTTLE BODY

OUTPUT SHAFT(COUNTERSHAFT)SPEED SENSOR

TRANS-MISSIONRANGESWITCH

TAILLIGHTRELAY

IGNITIONSWITCH

TPSA

CRUISE MAININDICATOR

CRUISE CONTROLINDICATOR

1 2

4 31 2

4

PGM-FI MAIN RELAY (FI-MAIN)

3

WHT

WHT

UNDER-DASHFUSE/RELAYBOX

CABLEREEL

11

CRUISE CONTROLCOMBINATIONSWITCHMAIN

CPU

WARNINGDRIVERCIRCUIT

F-CANTRANSCEIVER

19

1

4 5 6 7

ORN YELLT GRN

14 10 11 9

LT GRN

WHT

RED WHT

TPSB SG3 ETCSM ETCSM ATPFWD NDN

CANH CANL BKSW BKSWNC MRLY ETCSRLY IG1ETCS

PCM

BRN

YEL

WHT

GRY

YEL

5 V

12 V

GAUGE CONTROL MODULE (TACH)

G504

A36 A37 A40 A13 A6 A20 C1

C12 C20 C21 C39 C4 C3 B28 C10

BLU YEL/RED YELGRN RED/BLK RED/BLU

H1 F9 F5 E1

C101

3

BLK

F15

D2

BLU

6

3

WHT

564312

2

10

D8

1

9 8 7 6

SET/DECEL

CAN-CEL

RESUME/ACCEL

06/09/19 10:38:20 61SNC010_040_0027

ＳＮＣ７Ａ００Ａ１４５００００００００ＦＣＡＴ００

Signal to be tested Test condition Parameter: Desired result Possible cause if result is not obtained

4-27

Cruise Control Input Test

1. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3).


3. Make sure the HDS communicates with the vehicle and the powertrain control module (PCM). If it doesn’tcommunicate, go to the DLC circuit troubleshooting (see page 11-218).

4. Go to PGM-FI, and check for DTCs.

5. Do the following tests while monitoring parameters in the PGM-FI DATA LIST with the HDS.

NOTE: Intermittent failures are often caused by loose circuit connections. While monitoring cruise control inputs,flex their circuits, and note if any of the test results change.

••

•

•

••

•

••

•

••

•

Brake switchsignal

Brake pedal pressed,then released

CRUISE BRAKE SWshould indicate OFFwhen the brake pedal ispressed and ON whenthe brake pedal isreleased.

Faulty brake pedal position switchBlown No. 3 (10 A) fuse in the under-dash fuse/relay boxAn open in the wire between the PCMand the brake pedal position switchA wire shorted to ground between thePCM and the brake pedal position switch

Transmissionrange switchsignal

Shift lever in D SHIFT/CLUTCH SWshould indicate ON in P,R, N, and L and OFF inD and S.

Faulty transmission range switchAn open in the wire between the PCMand the transmission range switchA wire shorted to ground between thePCM and the transmission range switch

Cruise controlmain switchsignal

Cruise control mainswitch ON and OFF

CRUISE MASTER(MAIN) SW shouldindicate ON when thecruise control mainswitch is turned on andOFF when the cruisecontrol main switch isturned off.

Faulty cruise control main switchAn open in the wire between the gaugecontrol module (TACH) and the cruisecontrol main switchA wire shorted to ground between thegauge control module (TACH) and thecruise control main switch

Set switchsignal

Set/decel switchpressed and released

CRUISE SET SWshould indicate ONwhen the set/decelswitch is pressed andOFF when the set/decelswitch is released.

Faulty cruise control combination switchAn open in the wire between the gaugecontrol module (TACH) and the cruisecontrol combination switchA wire shorted to ground between thegauge control module (TACH) and thecruise control combination switch

(cont’d)

06/09/19 10:38:20 61SNC010_040_0028

Signal to be tested Test condition Parameter: Desired result Possible cause if result is not obtained

4-28

Cruise Control

Cruise Control Input Test (cont’d)

••

•

Resumeswitch signal

Resume/accel switchpressed and released

CRUISE RESUME SWshould indicate ONwhen the resume/accelswitch is pressed andOFF when the resume/accel switch is released.

Faulty cruise control combination switchAn open in the wire between the gaugecontrol module (TACH) and the cruisecontrol combination switchA wire shorted to ground between thegauge control module (TACH) and thecruise control combination switch

Cancel switchsignal

Cancel switchpressed and released

CRUISE CANCEL SWshould indicate ONwhen the cancel switchis pressed and OFFwhen the cancel switchis released.

Faulty cruise control combination switch

Cruise controlindicatorsignal

Start the engine, turnthe cruise controlmain switch on, anddrive the vehicleabove 25 mph(40 km/h). Set andcancel the cruisecontrol.

CRUISE INDICATORshould indicate ONwhen the cruise controlis set and OFF whenthe cruise control iscanceled.

Faulty gauge control module (TACH)

06/09/19 10:38:21 61SNC010_040_0029

０１

０２

０３

＊０１

ＳＮＣ７Ａ００Ａ１４５０００１７６２５ＦＨＡＴ００

4-29

Cruise Control Combination Switch Test/Replacement

A

Terminal

Position

Cruise controlmain switch (ON)

6 7 3 4 5

Set/decel(PRESSED)

Resume/accel(PRESSED)

Cancel(PRESSED)

Cruise controlmain switch (OFF)

SRS components are located in this area. Review theSRS component locations (see page 24-11), and theprecautions and procedures (see page 24-13), beforedoing repairs or service.

1. Remove the driver’s airbag (see page 24-160).

2. Remove the eight screws.

3. Remove the combination switch (A).

4. Check for continuity between the terminals in eachswitch position according to the table.

• If there is continuity, and it matches the table, butswitch failure occurred on the cruise controlinput test, check and repair the wire harness onthe switch circuit.

• If there is no continuity in one or more positions,replace the switch.

Wire side offemale terminals

06/09/19 10:38:22 61SNC010_040_0030

Documents

2007 Civic Hybrid 61SNC01_04 - Engine Electrical (2013_03_08 01_27_35 UTC)