2001 Mitsubishi Lancer Evo IX

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITORINPUT SIGNAL PROCEDURES

54B-267

NOTE:Connector: C-113

Step 6. Retest the system. Check that all the driver's door switch signals are received normally.Q: Is the check result normal? YES : The trouble can be an intermittent

malfunction (Refer to GROUP 00 How to Cope with Intermittent Malfunction P.00-5). NO : Replace the ETACS-ECU.

AC310452AF

Connectors: C-214, C-217 Junction block (front view)

C-214

C-217 C-214 Harness side14 13 12 11 10 9 8 7 6 5 4 3 2 1 28 27 26 25 24 23 22 21 20 19 18 17 16 15

C-217 Harness side

AC310449AB

Prior to the wiring harness inspection, check intermediate connector C-113 and junction block connector C-214 or C-217 , and repair if necessary. Check the input line for open circuit.Q: Is the check result normal? YES : Go to Step 6. NO : Repair the wiring harness between each of

the door switches and the ETACS-ECU.

54B-268


INSPECTION PROCEDURE L-10: All the door switch signals are not received.

CAUTION Whenever the ECU is replaced, ensure that the input signal circuit is normal.All Door Switches Input Circuit

ETACS-ECUJ/B SIDE

DOOR SWITCH (FRONT: LH)

DOOR SWITCH (REAR: LH)

DOOR SWITCH (REAR: RH)

DOOR SWITCH (FRONT: RH)

Wire colour code B : Black LG : Light green G : Green L : Blue W : White Y : Yellow BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet

SB : Sky blue

COMMENTS ON TROUBLE SYMPTOMInput signals from all the door switches are used to operate the functions below. If the signal(s) are abnormal, these functions will not work normally. Keyless entry system Room lamps

POSSIBLE CAUSES Malfunction of the door switches Malfunction of the ETACS-ECU Damaged harness wires and connectors


54B-269

DIAGNOSTIC PROCEDUREStep 1. Pulse check Check the input signal from the door switch (front: RH). System switch door switch (front: RH) Check condition When the driver's door is opened

Step 2. Connector check: D-18 , D-01 , D-08 or D-11 door switch connectors, and C-226 ETACS-ECU connectorConnector: C-226 Junction block (rear view)

OK: The M.U.T.-II/III sounds or the voltmeter needle fluctuates.Q: Is the check result normal? YES : Go to Step 2. NO : Refer to inspection procedure L-3 "The doorJunction block sideAC310461AB

switch (front: RH) signal is not received P.54B-244."

Connector: D-01

Harness side

AC310471AB

Connectors: D-08, D-11, D-18

D-08 D-011

D-18

D-08 Harness side

D-11 Harness side

D-18 Harness sideAC310474 AB

Q: Is the check result normal? YES : Go to Step 3. NO : Repair the defective connector.

54B-270


Step 3. Check the installation condition. Check that the door switch is installed on the body correctly.Q: Is the check result normal? YES : Go to Step 4. NO : Correct the installation condition.

Step 5. Check the wiring harness from terminal No.2 of the D-18 , D-01 , D-08 or D-11 door switch connector to terminal No.7 of the C-226 ETACS-ECU connector.Connector: C-226 Junction block (rear view)

Step 4. Check the door switch. Refer to GROUP 42 Door P.42-27.Q: Is the check result normal? YES : Go to Step 5. NO : Replace the door switch.

Junction block sideAC310461AB

Connector: D-01

Harness side

AC310471AB

Connectors: D-08, D-11, D-18

D-08 D-011

D-18

D-08 Harness side

D-11 Harness side

D-18 Harness sideAC310474 AB


54B-271


Q: Is the check result normal? YES : Go to Step 6. NO : Repair the wiring harness between each of

the door switches and the ETACS-ECU. Step 6. Retest the system. Check that all the driver's door switch signals are received normally.Q: Is the check result normal? YES : The trouble can be an intermittent


AC310455AC

Connectors: C-214, C-217 Junction block (front view)

C-214

C-214 Harness side

C-217

14 13 12 11 10 9 8 7 6 5 4 3 2 1 28 27 26 25 24 23 22 21 20 19 18 17 16 15

C-217 Harness side

AC310459AB

Prior to the wiring harness inspection, check intermediate connector C-127 and junction block connector C-217 or C-214 , and repair if necessary. Check the input line for open circuit.

54B-272


INSPECTION PROCEDURE L-11: The front door lock actuator (LH) switch signal is not received.

CAUTION Whenever the ECU is replaced, ensure that the input signal circuit is normal.Front Door Lock Actuator Input Circuit

ETACS-ECU

DOOR LOCK ACTUATOR (FRONT: LH)


SB : Sky blue

COMMENTS ON TROUBLE SYMPTOMInput signal from the front door lock actuator (LH) is used to operate the functions below. If the signal is abnormal, these functions will not work normally. Central door locking Keyless entry system Room lamps

POSSIBLE CAUSES Malfunction of the front door lock actuator (LH) Malfunction of the ETACS-ECU Damaged harness wires and connectors


54B-273

DIAGNOSTIC PROCEDUREStep 1. Connector check: E-04 front door lock actuator (LH) connectorConnector: E-04 Front door (LH)

Step 3. Resistance measurement at the E-04 front door lock actuator (LH) connectorConnector: E-04 Front door (LH)

Harness side E-04(B)


AC310484 AB

AC310484 AB

(1) Disconnect the connector, and measure at the wiring harness side.


Connector E-04 (Harness side)

Step 2. Check the front door lock actuator (LH). Refer to GROUP 42 Door P.42-31.Q: Is the check result normal? YES : Go to Step 3. NO : Replace the front door lock actuator (LH).3 2 1 6 5 4AC301541 GW

(2) Resistance between E-04 front door lock actuator (LH) connector terminal No.1 and body earth OK: 2 or lessQ: Is the check result normal? YES : Go to Step 5. NO : Go to Step 4.

54B-274


Step 4. Check the wiring harness between E-04 front door lock actuator (LH) connector terminal No.1 and body earthConnector: E-04 Front door (LH)

Step 6. Check the wiring harness from E-04 front door lock actuator (LH) connector terminal Nos.2 and 3 to C-227 ETACS-ECU connector terminal Nos.35 and 36.Connector: C-227 Junction block (rear view)

Harness side E-04(B) Harness side29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39

AC310484 AB

NOTE:Connector: C-17 Connector: E-04

AC310450AG

Front door (LH)


AC310446 AC

AC310484 AB

Prior to the wiring harness inspection, check intermediate connector C-17, and repair if necessary. Check the earth wires for open circuit.Q: Is the check result normal? YES : The trouble can be an intermittent


malfunction (Refer to GROUP 00 How to Cope with Intermittent Malfunction P.00-5). NO : Repair the wiring harness.

Step 5. Connector check: C-227 ETACS-ECU connectorConnector: C-227 Junction block (rear view)

AC310446 AC

Prior to the wiring harness inspection, check intermediate connector C-17, and repair if necessary. Check the input line for open circuit.Q: Is the check result normal? YES : Go to Step 7. NO : Repair the wiring harness.

Harness side29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39

AC310450AG

Step 7. Retest the system. Check that the front door lock actuator (LH) switch signal is received normally.Q: Is the check result normal? YES : The trouble can be an intermittent




54B-275

INSPECTION PROCEDURE L-11: The front door lock actuator (RH) switch signal is not received.

CAUTION Whenever the ECU is replaced, ensure that the input signal circuit is normal.Front Door Lock Actuator Input Circuit

ETACS-ECU

DOOR LOCK ACTUATOR (FRONT: RH)


SB : Sky blue

COMMENTS ON TROUBLE SYMPTOMInput signal from the front door lock actuator (RH) is used to operate the functions below. If the signal is abnormal, these functions will not work normally. Central door locking Keyless entry system Room lamps

POSSIBLE CAUSES Malfunction of the front door lock actuator (RH) Malfunction of the ETACS-ECU Damaged harness wires and connectors

54B-276


DIAGNOSTIC PROCEDUREStep 1. Connector check: E-15 front door lock actuator (RH) connectorConnector: E-15 3 2 1 6 5 4AC301541HR

Connector E-15 (Harness side)

Harness side

E-15 (B)

(2) Resistance between E-15 front door lock actuator (RH) connector terminal No.3 and body earth OK: 2 or lessQ: Is the check result normal? YES : Go to Step 5. NO : Go to Step 4.

AC310493 AF


Step 2. Check the front door lock actuator (RH). Refer to GROUP 42 Door P.42-31.Q: Is the check result normal? YES : Go to Step 3. NO : Replace the front door lock actuator (RH).

Step 4. Check the wiring harness between E-15 front door lock actuator (RH) connector terminal No.3 and body earthConnector: E-15

Step 3. Resistance measurement at the E-15 front door lock actuator (RH) connectorConnector: E-15

Harness side

E-15 (B)

AC310493 AF

NOTE:Connector: C-110 Harness side E-15 (B)

AC310493 AF

(1) Disconnect the connector, and measure at the wiring harness side.AC310456 AE

Prior to the wiring harness inspection, check intermediate connector C-110, and repair if necessary. Check the earth wires for open circuit.Q: Is the check result normal? YES : The trouble can be an intermittent



54B-277


Step 6. Check the wiring harness from E-15 front door lock actuator (RH) connector terminal Nos.1 and 2 to C-227 ETACS-ECU connector terminal Nos.36 and 35.Connector: C-227 Junction block (rear view)

Harness side29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39

Harness sideAC310461AF29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39


AC310461AF

Connector: E-15

Harness side

E-15 (B)

AC310493 AF


AC310456 AE

Prior to the wiring harness inspection, check intermediate connector C-110, and repair if necessary. Check the input line for open circuit.Q: Is the check result normal? YES : Go to Step 7. NO : Repair the wiring harness.

Step 7. Retest the system. Check that the front door lock actuator (RH) switch signal is received normally.Q: Is the check result normal? YES : The trouble can be an intermittent


54B-278


INSPECTION PROCEDURE L-12: The vehicle speed sensor signal is not received.

CAUTION Whenever the ECU is replaced, ensure that the input signal circuit is normal.Vehicle Speed Sensor Input Circuit ETACS-ECU

VEHICLE SPEED SENSOR

Wire colour code B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple


54B-279

Vehicle Speed Signal Input Circuit ETACS-ECU

VEHICLE SPEED SENSOR


COMMENTS ON TROUBLE SYMPTOMVehicle speed sensor signal is used to operate the windshield wiper (vehicle speed-dependent wiper function). If this signal is abnormal, the windshield wipers do not work normally.

DIAGNOSTIC PROCEDUREStep 1. Check the speedometer. Check that the speedometer works normally.Q: Is the check result normal? YES : Go to Step 2. NO : Diagnose the combination meter (Refer to

POSSIBLE CAUSES Malfunction of the vehicles speed sensor Malfunction of the ETACS-ECU Damaged harness wires and connectors

GROUP 54A Combination meter P.54A-34).

54B-280


Step 2. Connector check: B-04 vehicles speed sensor connector and C-228 ETACS-ECU connectorConnector: C-228 Junction block (rear view)

Step 3. Check the wiring harness between B-04 vehicles speed sensor connector terminal No.3 and C-228 ETACS-ECU connector terminal No.63.Connector: C-228 Junction block (rear view)

Harness side59 58 57 56 55 54 53 52 51 58 5756 555453 52 51 60 74 7372 71 70 69

Harness side59 58 57 56 55 54 53 52 51 58 5756 555453 52 51 60 74 7372 71 70 69

AC310450AH

AC310450AH

Connector: C-228

Junction block (rear view)

Connector: C-228


Harness side59 58 57 56 55 54 53 52 51 58 5756 555453 52 51 60 74 7372 71 70 69

Harness side59 58 57 56 55 54 53 52 51 58 5756 555453 52 51 60 74 7372 71 70 69

AC310461AG

AC310461AG

Connector: B-04 B-04(B) Harness side


AC310439AB

AC310439AB



AC310477AB

AC310477AB

Q: Are the check result normal? YES : Go to Step 3. NO : Repair the defective connector.


54B-281

NOTE:Connector: C-21,C-124 C-21 (B)

Connector: B-27

C-124 (B) Connector: C-124 C-21

AC310477AC

C-124

AC310454AD AC310447AD

Connector: C-101

Harness side

Prior to the wiring harness inspection, check joint connector C-21 , combination meter connector C-101 and intermediate connector B-27 and C-124, and repair if necessary. Check the input line for open circuit.Q: Is the check result normal? YES : Go to Step 4. NO : Repair the wiring harness.

AC310456AF

Connector: B-27

Step 4. Retest the system. Check that the vehicle speed sensor signal is received normally.Q: Is the check result normal? YES : The trouble can be an intermittent


AC310439 AC

54B-282


INSPECTION PROCEDURE L-13: Each switch signal of the keyless entry transmitter is not received.

CAUTION Whenever the ECU is replaced, ensure that the input signal circuit is normal.Transmitter Input Circuit ETACS-ECU

KEYLESS ENTRY RECEIVER

KEYLESS ENTRY TRANSMITTER

W3Z10E39AA

COMMENTS ON TROUBLE SYMPTOMInput signal from the keyless entry transmitter is used to operate the keyless entry system. If the signal is abnormal, the keyless entry system will not work normally.

Step 2. Check the transmitter battery. Refer to GROUP 42 Keyless entry system P.42-47.Q: Is the check result normal? YES : Go to Step 3. NO : Replace the keyless entry transmitter

POSSIBLE CAUSES Malfunction of the keyless entry transmitter Defective battery of the keyless entry transmitter Malfunction of the ETACS-ECU

battery. Step 3. Register the encrypted code, and then retest the system. (1) Register the keyless entry transmitter again. (2) Check that each signal is received from the keyless entry transmitter.Q: Is the check result normal? YES : The trouble can be an intermittent

DIAGNOSTIC PROCEDUREStep 1. Pulse check Check whether the ETACS-ECU receives signal from a transmitter or not. For this check, you should use the 2-button-type transmitter (integrated with a key), which cover screw is silver and has already been registered. NOTE: For how to register the keyless entry transmitter encrypted code, refer to GROUP 42 On-vehicle Service P.42-43. System switch Check condition Keyless entry transmitter When the switch is "LOCK/UNLOCK" switch turned from off to on OK: The M.U.T.-II/III sounds or the voltmeter needle fluctuates.Q: Is the check result normal? YES : Go to Step 2. NO : Go to Step 4.

malfunction (Refer to GROUP 00 How to Cope with Intermittent Malfunction P.00-5). NO : Replace the keyless entry transmitter.

Step 4. Retest the system. Check that each signal is received from the keyless entry transmitter.Q: Is the check result normal? YES : The trouble can be an intermittent



54B-283

INSPECTION PROCEDURE L-14: The rear fog lamp switch signal is not received.

CAUTION Whenever the ECU is replaced, ensure that the input signal circuit is normal.Rear Fog Lamp Switch Input Circuit ETACSECU

FOG LAMP SWITCH


SB : Sky blue

COMMENTS ON TROUBLE SYMPTOMInput signal from the rear fog lamp switch is used to operate the rear fog lamps. If the signal is abnormal, the rear fog lamps will not illuminate and extinguish normally.

POSSIBLE CAUSES Malfunction of the fog lamp switch Malfunction of the ETACS-ECU Damaged harness wires and connectors

54B-284


DIAGNOSTIC PROCEDUREStep 1. Connector check: C-20 fog lamp switch connectorConnector: C-20

Step 3. Resistance measurement at the C-20 fog lamp switch connectorConnector: C-20

Harness side Harness sideAC310446AH

AC310446AH

Connector: C-20

Connector: C-20 Harness side Harness side

AC310456AI

AC310456AI

(1) Remove the fog lamp switch, and measure at the wiring harness side.Connector C-20 (Harness side)


Step 2. Check the rear fog lamp switch. Refer to GROUP 54A Rear fog lamp P.54A-64.Q: Is the check result normal? YES : Go to Step 3. NO : Replace the fog lamp switch.

AC301541HA

(2) Continuity between C-20 fog lamp switch connector terminal No.6 and body earth OK: 2 or lessQ: Is the check result normal? YES : Go to Step 5. NO : Go to Step 4.


54B-285

Step 4. Check the wiring harness between C-20 fog lamp switch connector terminal No.6 and body earth.Connector: C-20

Q: Is the check result normal? YES : The trouble can be an intermittent


Step 5. Connector check: C-227 ETACS-ECU connectorHarness side Connector: C-227 Junction block (rear view)

AC310446AH

Harness side Connector: C-20 29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39

AC310450AG

Harness side Connector: C-227 Junction block (rear view)

AC310456AI


Harness side29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39

AC310461AF

Harness side


AC310446AF

Connector: C-06

Harness side

AC310456AG

Prior to the wiring harness inspection, check joint connector C-101 or C-06 , and repair if necessary. Check the earth wires for open circuit.

54B-286


Step 6. Check the wiring harness between C-227 ETACS-ECU connector terminal No.21 and C-20 fog lamp switch connector terminal No.5.Connector: C-20

Step 7. Retest the system. Check that the rear fog lamp switch signal is received normally.Q: Is the check result normal? YES : The trouble can be an intermittent


Harness side

AC310446AH

Connector: C-20

Harness side

AC310456AI

Connector: C-227 Junction block (rear view)

Harness side29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39

AC310450AG

Connector: C-227


Harness side29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39

AC310461AF

Check the input line for open circuit.Q: Is the check result normal? YES : Go to Step 7. NO : Repair the wiring harness.


54B-287

INSPECTION PROCEDURE L-15: Interior lamp loaded signal is not detected.

CAUTION Whenever the ECU is replaced, ensure that the input signal circuit is normal.Interior Lamp Automatic Shutdown Function Circuit IGNITION SWITCH (ACC) IGNITION SWITCH (IG1) BATTERY

RELAY BOX

ETACS-ECU

KEEP RELAYINTERIOR LAMP CUT BACK-UP CIRCUIT POWER SOURCE

LOAD DETERMINATION CIRCUIT

J/B SIDE

COMBINATION METER

LUGGAGE COMPARTMENT LAMP FRONT ROOM LAMP REAR ROOM LAMP


SB : Sky blue

54B-288


COMMENTS ON TROUBLE SYMPTOMThe interior lamp automatic shutdown function operates in accordance with the interior lamp loaded signal. If this signal is abnormal, the functions below will not work normally. Ignition key cylinder illumination lamp Room lamps

Step 3. Voltage measurement at the C-226 ETACS-ECU connectorConnector: C-226 Junction block (rear view)

POSSIBLE CAUSES Malfunction of the ETACS-ECU Damaged wiring harness or connector(s)Junction block side

DIAGNOSTIC PROCEDUREStep 1. Check the power supply circuit. When the ignition switch is turned to the LOCK (OFF) position, check if the hazard warning lamps illuminate.Q: Is the check result normal? YES : Go to Step 2. NO : Refer to inspection procedure A-2 "CheckConnector: C-226

AC310450AB



the battery power supply circuit to the ETACS-ECU P.54B-42." Step 2. Connector check: C-226 ETACS-ECU connectorConnector: C-226 Junction block (rear view)

(1) Remove the ETACS-ECU, and measure at the junction block side. (2) Turn the ignition switch to the ON position.

Connector C-226 (Junction block side)2019 18 17 1615 14 13 12 11 10 9 8 7 6 5 4 3 2 1

Junction block sideAC301541GUAC310450AB

Connector: C-226


(3) Voltage between C-226 ETACS-ECU connector terminal No.8 and body earth OK: System voltageQ: Is the check result normal? YES : Go to Step 5. NO : Go to Step 4.




54B-289

Step 4. Check the wiring harness between C-226 ETACS-ECU connector terminal No.8 and the ignition switch (IG1).Connector: C-226 Junction block (rear view)



Step 5. Voltage measurement at the C-226 ETACS-ECU connectorConnector: C-226 Junction block (rear view)

Junction block side

AC310450AB

Connector: C-226

Junction block (rear view) Junction block side

AC310450AB

Connector: C-226 Junction block sideAC310461AB


NOTE:

Connector: C-211 Junction block (front view)


Harness side2 1 6 5 4 3

(1) Remove the ETACS-ECU, and measure at the junction block side. (2) Turn the ignition switch to the ACC position.

AC310448AB

Connector: C-211

Junction block (front view)

Connector C-226 (Junction block side)2019 18 17 1615 14 13 12 11 10 9 8 7 6 5 4 3 2 1

Harness side

AC301541HB

AC310458AB

(3) Voltage between C-226 ETACS-ECU connector terminal No.4 and body earth OK: System voltageQ: Is the check result normal? YES : Go to Step 7. NO : Go to Step 6.

Prior to the wiring harness inspection, check junction block connector C-211, and repair if necessary. Check the power supply line to the ignition switch (IG1) for open circuit.

54B-290


Step 6. Check the wiring harness between C-226 ETACS-ECU connector terminal No.4 and the ignition switch (ACC).Connector: C-226 Junction block (rear view)

NOTE:Connector: C-23 C-23 (B)

Harness side

Junction block side Connector: C-210 Junction block (front view)

AC310456AJ

AC310450AB

Connector: C-226


Harness side6 5 4 3 2 1 14 13 12 11 10 9 8 7

AC310448AK


Connector: C-210

Junction block (front view)

Harness side6 5 4 3 2 1 14 13 12 11 10 9 8 7

AC310458AH

Connector: C-129

AC310446AI

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITORINPUT SIGNAL PROCEDURESConnector: C-129

54B-291



Step 7. Retest the system. Check that the interior lamp loaded signal is received normally.AC310454AJ

Prior to the wiring harness inspection, check joint connector C-23 , junction block connector C-210 or intermediate connector C-129, and repair if necessary. Check the power supply line to the ignition switch (ACC) for open circuit.



54B-292


INSPECTION PROCEDURE L-16: The door lock key cylinder switch signal is not detected.

CAUTION Whenever the ECU is replaced, ensure that the input signal circuit is normal.Door Lock Key Cylinder Switch Input Circuit ETACS-ECU

DOOR LOCK KEY CYLINDER SWITCH


COMMENTS ON TROUBLE SYMPTOMInput signal from the door lock key cylinder switch is used to operate the central door locking function. If the signal is abnormal, the central door locking function will not work normally.

POSSIBLE CAUSES Malfunction of the door lock key cylinder switch Malfunction of the ETACS-ECU Damaged harness wires and connectors


54B-293

DIAGNOSTIC PROCEDUREStep 1. Connector check: E-12 door lock key cylinder switch connectorConnector: E-12 Front door (RH)

Step 3. Resistance measurement at the E-12 door lock key cylinder switch connectorConnector: E-12 Front door (RH)

E-12(B) Harness side E-12(B) Harness sideAC310488AC

AC310488AC

Connector: E-12

Connector: E-12 E-12(B) Harness side E-12(B)

Harness side

AC310498AB

AC310498AB



Connector E-12 (Harness side)3 2 1

Step 2. Check the door lock key cylinder switch. Refer to GROUP 42 Door P.42-31.Q: Is the check result normal? YES : Go to Step 3. NO : Replace the door lock key cylinder switch.

AC301541DM

(2) Resistance between E-12 door lock key cylinder switch connector terminal No.2 and body earth OK: 2 or lessQ: Is the check result normal? YES : Go to Step 5. NO : Go to Step 4.

54B-294

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITORINPUT SIGNAL PROCEDURES Q: Is the check result normal? YES : Intermittent malfunction (Refer to GROUP

Step 4. Check the wiring harness between E-12 door lock key cylinder switch connector terminal No.2 and body earth.Connector: E-12 Front door (RH)

00 How to Cope with Intermittent Malfunction P.00-5). NO : Repair the wiring harness.

E-12(B) Harness side


AC310488AC

Harness side Connector: E-12 29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39

Harness side E-12(B) Connector: C-227

AC310450AG


AC310498AB


Harness side29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39

AC310461AF


AC310452AG

Connector: C-17

AC310454 AK

Prior to the wiring harness inspection, check intermediate connector C-110 or C-17 , and repair if necessary. Check the earth wires for open circuit.


54B-295

Step 6. Check the wiring harness from E-12 door lock key cylinder switch connector terminal Nos.1 and 3 or 3 and 1 to C-227 ETACS-ECU connector terminal Nos.33 and 34.Connector: C-227 Junction block (rear view)


Harness side29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39

AC310452AG

Connector: C-17

AC310450AG

Connector: C-227


Harness side29 28 27 26 25 24 23 22 21 38 37 36 35 34 33 32 31 30 44 43 42 41 40 39

AC310454 AK

AC310461AF

Prior to the wiring harness inspection, check intermediate connector C-110 or C-17 , and repair if necessary. Check the input line for open circuit.Q: Is the check result normal? YES : Go to Step 7. NO : Repair the wiring harness.

Connector: E-12

Front door (RH)

E-12(B) Harness side

Step 7. Retest the system. Check that the door lock key cylinder switch signal is received normally.Q: Is the check result normal? YES : Intermittent malfunction (Refer to GROUP

AC310488AC

Connector: E-12

00 How to Cope with Intermittent Malfunction P.00-5). NO : Replace the ETACS-ECU.


AC310498AB

54B-296

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITORCHECK AT ECU TERMINAL

CHECK AT ECU TERMINALM1549001200823

ETACS-ECUC-227 C-226 C-228

AC005554AI

NOTE: Terminal numbers 1 to 20 can not be measured as the ETACS-ECU is mounted on the junction block directly. The values are for reference only.Terminal Check item No. Check condition Normal condition

1 2

Output to the power window relay Power supply to the central door locking system (battery positive voltage) Earth (for ECU) Ignition switch (ACC) Output to room lamp Power supply to interior lamp (battery positive voltage) Input from all the door switches Power supply from ignition switch (IG1) Output to right turn-signal lamps Input from driver's door switch Power supply to turn-signal lamps (battery positive voltage) Output to central door locking (for locking the doors) Output to central door locking (for unlocking the doors other than the driver's door) Output to left turn-signal lamps

When the power windows are operative Always

System voltage System voltage

3 4 5 6 7 8 9 10 11 12 13

Always Ignition switch: ACC When the room lamp is on Always (when the interior lamp off function is off)

0V System voltage 2 V or less System voltage

One of the door switches: ON (door 0 V open) Ignition switch: ON System voltage

When right turn-signal lamps are on System voltage Driver's door switch: ON (door open) Always When the door lock actuators lock the doors When the door lock actuators unlock the doors 0V System voltage System voltage System voltage

14

When the left turn-signal lamps are System voltage on Ignition switch: ACC Always Rear fog lamp switch: ON System voltage System voltage 0V

15 to 17 18 19 20 21 Power supply from ignition switch (ACC) Battery power supply (for ECU) Input from rear fog lamp switch

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITORCHECK AT ECU TERMINAL Terminal Check item No. Check condition

54B-297

Normal condition

22

Output to central door locking (for unlocking the driver's door) Input of collision signal Input to key reminder switch

When the door lock actuators unlock the doors Key reminder switch: ON (ignition key removed) Driver's door lock: Locked Driver's door lock: Unlocked When diagnosis code is set (the M.U.T.-II/III is connected or the diagnosis connector terminal No.1 is earthed) When input check signal is sent

System voltage 0V 0V 0V 0 to 12 V (pulse signal)

23 to 28 29 30

31 to 34 35 36 Input to driver's door lock actuator (lock switch) Input to driver's door lock actuator (unlock switch) Setting diagnosis code or sending input check signal

37 to 44 51

0 V, 12 V (input signal is fluctuating) 0V 0V 0 to 12 V (pulse signal) 0 to 12 V (pulse signal) 0 to 2.5 V

52 53 54 55 56 57, 58 59 63 64, 65 66

Output to door-ajar indicator lamp Input from hazard warning lamp switch Earth (for sensor) SWS communication line Input of vehicle speed signal Input from windshield intermittent wiper volume Input from diagnosis control Input of SWS request signal Output to ignition key cylinder illumination lamp Power supply to interior lamp Output to rear fog lamp

Hazard warning lamp switch: ON Always Always When the vehicle is being driven Turn the ignition switch to the ACC position, and move the wiper volume from "Fast" to "Slow." When M.U.T.-II/III is connected Always When ignition key cylinder illumination is on Always (when the interior lamp off function is off) When rear fog lamp is on

When door-ajar indicator lamp is on 0 V

60 to 62

67 68 69 70 71 72, 73 74

0V 0 to 12 V (pulse signal) 2 V or less System voltage System voltage

54B-298COLUMN SWITCHC-206


AC005555AG

Terminal Check item No.

Check condition

Normal condition

1 2 3 4 5 6

Battery power supply Input of SWS request signal SWS communication line Earth Output to windshield intermittent wiper volume

Always Always Always Always

System voltage 0 to 12 V (pulse signal) 0 to 12 V (pulse signal) 0V

Ignition switch: ACC 0 to 2.5 V Move the wiper volume from "Fast" to "Slow."

7 8

Back-up output to windshield wiper Windshield low-speed wiper switch 0 V switch or windshield high-speed wiper switch: ON Power supply from ignition switch (IG1) Ignition switch: ON System voltage 0V

9 10

Back-up output to headlamp switch Headlamp switch: ON


54B-299

FRONT-ECUA-10X1 2 3 4 5 6 7 8 9 10 11

A-11X2122 23242526 272829 30 31 AC305097 AB

NOTE: Measurement is not possible as the front-ECU is mounted on the relay box directly. The values are for reference only.Terminal Check item No. Check condition Normal condition

1 2 3, 4 5 6 7 8 9 to 11 21 22 23 24 25 26

Output to headlamp (high-beam) Battery power supply (for headlamp) Output to headlamp (low-beam) Battery power supply (for ECU) Output to tail lamps Output to windshield washer SWS communication line Input of automatic stop signal to windshield wiper Power supply to ignition switch (ACC) Input of backup signal from headlamp switch

When headlamps (high-beam) are on Always

System voltage System voltage System voltage System voltage System voltage System voltage System voltage 0 12 V (pulse signal) System voltage System voltage 0V

Battery power supply (for tail lamp) Always When headlamps (low-beam) are on Always When tail lamps are on When windshield washer is on Always When windshield wiper is on Ignition switch: "ACC" Headlamp switch: ON

Input of backup signal to windshield Windshield low-speed wiper switch 0 V wiper or windshield high-speed wiper switch: ON Output to windshield wiper (low-speed) Output to windshield wiper (high-speed) Power supply to ignition switch (IG2) Earth When windshield wiper is on (at low System voltage speed) When windshield wiper is on (at high speed) Ignition switch: "ON" Always System voltage System voltage 0V

27 28 29 30 31

54B-300


POWER WINDOW MAIN SWITCHE-051 2 3 4 5 6 7 8 9 10 11 12 13 14 AC103264 AG


Check condition

Normal condition

1 2 3 4 5 6 7 8 9 10 11 12

Output to power window regulator motor Earth SWS communication line (to ETACS-ECU) Power supply Output to power window regulator motor Input from power window regulator motor (pulse sensor earth) Input from power window regulator motor (pulse sensor signal) Input from power window regulator motor (pulse sensor signal) SWS communication line (power window sub switch) Input from power window regulator motor (power supply to pulse sensor)

Always Always Power window relay: ON When the power windows are operating When the power windows are operating Power window relay: ON When the power windows are operating

0V 0 to 12 V (pulse signal) System voltage 0V 0 to 5 V (pulse signal) 0 to 5 V (pulse signal) 0 to 12 V (pulse signal) 5V

13, 14


54B-301

POWER WINDOW SUB SWITCHE-14 (front), E-08 (rear: LH), E-17 (rear: RH)

1 2 3 4 5 6 7 8

AC103265 AI


Check condition

Normal condition

1 2 3 4 5 6 7 8

Earth Input from power window regulator motor Input from power window regulator motor Power supply Output to power window regulator motor SWS communication line Output to power window regulator motor Input from power window regulator motor

Always Power window relay: ON Power window relay: ON

0V System voltage 0 to 12 V (pulse signal)

54B-302

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITORON-VEHICLE SERVICE

ON-VEHICLE SERVICECONFIGURATION FUNCTION M1549002500634

According to the configuration mode entry conditions of the input switch, the following functions can be adjusted. The data on configuration will be memorized even if the battery is removed. Keyless entry system hazard answerback function Vehicle speed-dependent wiper function Headlamp automatic-shutdown function Interior lamp automatic-shutdown function Delayed lamp-off time of the room lamp Initialisation of all functions (Returns to initial settings) 1. Conditions for entering the configuration mode i. Set each switch to the following state. Hazard lamp switch: OFF Diagnosis control: ON (Connect the M.U.T.-II or earth No.1 pin of the 16-pin diagnosis connector). Key reminder switch: OFF (Insert the ignition key)

Ignition switch: "LOCK" (OFF) position Driver's door switch: OFF (driver's door closed) ii. When the windshield washer switch is ON for more than ten seconds, the buzzer in the ETACS-ECU sounds for three seconds, and the configuration mode will be set. 2. Conditions for exiting the configuration mode Diagnosis control: OFF (Disconnect the M.U.T.-II or the earth of No.1 pin of the 16-pin diagnosis connector disconnected). Key reminder switch: ON (Remove the ignition key) Ignition switch: Turning to any position other than "LOCK" (OFF) position Driver's door switch: ON (driver's door opened) When three minutes pass without configurations performed When the other warning buzzer output is generated 3. Configurations of various functions

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITORON-VEHICLE SERVICE

54B-303

Function Keyless entry system hazard answerback function

Configuration procedure When the lock button of the transmitter is pressed twice continuously within two seconds, the hazard answerback function during the lock state will be switched between available or unavailable. Function available: Buzzer sounds once. (Initial state) Function not available: Buzzer sounds twice. When the unlock button of the transmitter is pressed twice continuously within two seconds, the hazard answerback function during the unlock state will be switched between available or unavailable. Function available: Buzzer sounds once. (Initial state) Function not available: Buzzer sounds twice. When the windshield wiper mist switch is turned ON for more than two seconds, the vehicle speed-dependent wiper function is switched between available or unavailable. Function available: Buzzer sounds once. (Initial state) Function not available: Buzzer sounds twice. When the passing switch is turned ON for more than two seconds with the head lamp switch ON and the turn signal lamp switch turned to RH, the headlamp automatic-shutdown function is switched between available or unavailable. Function available: Buzzer sounds once. (Initial state) Function not available: Buzzer sounds twice. When the hazard switch is turned ON for more than two seconds, the interior lamp automatic-shutdown function is switched between available or unavailable. Function available: Buzzer sounds once. (Initial state) Function not available: Buzzer sounds twice. When the turn signal lamp switch is set in the order of RH to LH to RH to LH within three seconds from the LH position, the delayed lamp-off time switches (Returns to a after e, and repeats from a in order). a. 15 seconds: Buzzer sounds four times. (Initial state) b. 7.5 seconds: Buzzer sounds five times. c. 30 seconds: Buzzer sounds once. d. 10 seconds: Buzzer sounds twice. e. 0 seconds (No delay time): Buzzer sounds three times. When the windshield washer switch is ON for more than 20 seconds continuously, the buzzer sounds twice, and all functions will be initialised (Settings are returned to their initial states). The configuration mode entry buzzer sounds after 10 seconds, however to initialise all functions, the ON state should be continued for 20 seconds. When the windshield washer switch is ON for more than 20 seconds continuously without the configuration mode set, the configuration mode will be set after 10 seconds without the initialisation of all functions.

Vehicle speed-dependent wiper function

Headlamp automatic-shutdown function

Interior lamp automatic-shutdown function

Delayed lamp-off time of the interior lamp

Initialisation of all functions

NOTES

54C-1

GROUP 54C

SMART WIRING SYSTEM (SWS) USING SWS MONITORCONTENTSGENERAL INFORMATION . . . . . . . . SPECIAL TOOLS. . . . . . . . . . . . . . . . TROUBLESHOOTING . . . . . . . . . . . .PRIOR TO TROUBLESHOOTING . . . . . . . STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING . . . . . . . . . . . . . . . . HOW TO CONNECT THE SWS MONITOR ECU CHECK . . . . . . . . . . . . . . . . . . . . . . . . DATA LIST CHECK . . . . . . . . . . . . . . . . . . PULSE CHECK. . . . . . . . . . . . . . . . . . . . . .

54C-2 54C-2 54C-454C-4 54C-4 54C-5 54C-10 54C-11 54C-19

OPERATION AND FUNCTION QUICK-REFERENCE TABLE FOR INPUT SIGNAL INSPECTION PROCEDURES . . . . . . . . . . . . . . . . . . 54C-25 SYMPTOM PROCEDURES . . . . . . . . 54C-26BUZZER . . . . . . . . . . . . . . . . . . . . . . . . . . . CENTRAL DOOR LOCKING SYSTEM . . . . POWER WINDOW . . . . . . . . . . . . . . . . . . . 54C-57 54C-59 54C-86

KEYLESS ENTRY SYSTEM . . . . . . . . . . . . 54C-137 WINDSHIELD WIPER AND WASHER . . . . 54C-142 IGNITION KEY CYLINDER ILLUMINATION LAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54C-169 HEADLAMP AND TAIL LAMP . . . . . . . . . . . 54C-173 FLASHER TIMER . . . . . . . . . . . . . . . . . . . . 54C-208 FOG LAMP . . . . . . . . . . . . . . . . . . . . . . . . . 54C-231 INTERIOR LAMP. . . . . . . . . . . . . . . . . . . . . 54C-244

M.U.T.-II/III DRIVE RECORDER FUNCTION 54C-20

TROUBLE SYMPTOM CHART . . . . .

54C-20

CHECK TROUBLE BY USING THE INPUT SIGNAL CHECK. . . . . . . . . . . 54C-24

INPUT SIGNAL PROCEDURES. . . . . 54C-258 CHECK AT ECU TERMINAL . . . . . . . 54C-316

54C-2

SMART WIRING SYSTEM (SWS) USING SWS MONITORGENERAL INFORMATION

GENERAL INFORMATIONFor the general information regarding the SWS, refer to GROUP 54B General Information P.54B-2.M1549000100555

SPECIAL TOOLSM1549000300786

Tool

Number MB991502

Name M.U.T.-II sub-assembly

Use Check the SWS (ECU check and service data)

B991502

A

MB991824

B

MB991955 A: MB991824 B: MB991827 C: MB991910 D: MB991911 E: MB991825 F: MB991826

MB991827

C

DO NOT USEMB991910

D

MB991911

E

M.U.T.-III sub-assembly A: Vehicle communication interface (V.C.I.) B: M.U.T.-III USB cable C: M.U.T.-III main harness A (Vehicles with CAN communication system) D: M.U.T.-III main harness B (Vehicles without CAN communication system) E: M.U.T.-III measurement adapter F: M.U.T.-III trigger harness

SWS communication line check (ECU check and service data)

CAUTION M.U.T.-III main harness B (MB991911) should be used. M.U.T.-III main harness A should not be used for this vehicle.

MB991825

F

MB991826 MB991955

SMART WIRING SYSTEM (SWS) USING SWS MONITORSPECIAL TOOLS

54C-3

ToolA

Number MB991813 A: MB991806 B: MB991812 C: MB991822

Name SWS monitor kit A: SWS monitor cartridge B: SWS monitor harness (for column-ECU) C: Probe harness

Use SWS communication line check (ECU check and service data)

B

C

B991813

MB991529

Diagnosis code check Input signal check by using a harness voltmeter

MB991529

a

b

MB991223 a. MB991219 b. MB991220 c. MB991221 d. MB991222

Harness set a. Check harness b. LED harness c. LED harness adapter d. Probe

c

Continuity check and voltage measurement at harness wire or connector a. For checking connector pin contact pressure b. For checking power supply circuit c. For checking power supply circuit d. For connecting a locally sourced tester

d

DO NOT USEMB991223BA

MB992006

Extra fine probe

Continuity check and voltage measurement at harness wire or connector

MB992006

54C-4Tool

SMART WIRING SYSTEM (SWS) USING SWS MONITORTROUBLESHOOTING

Number MB991896

Name Adapter harness for door communication

Use Door communication line check (service data)

MB991896

TROUBLESHOOTINGPRIOR TO TROUBLESHOOTINGBefore carrying out troubleshooting, check the following two items. Make sure that the ETACS-ECU, the junction block (J/B), the front-ECU and the engine compartment relay box are connected securely.1. Gather information about the problem from the customer.M1549014700505

Check that the system fuses and fusible links are not burned out.

STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTINGM1549000500694

2. Verify that the condition described by the customer exists. Check that the ETACS-ECU is applicable for the 3. Confirming version number and destination OK NG vehicle specifications. If the ECU is not applicable for them, replace it with correct one.

4. ECU check on the SWS monitor OK

NG

Check the power supply circuit for the ECU communication lines and repair if necessary.

5. Check the data list by using the SWS monitor. OK

NG

6. Check of input signal circuit system

7. Check of output signal circuit systemAC211883AB

1. Gather information about the problem from the customer. 2. Verify that the condition described by the customer exists.

NOTE: If an error occurs in the SWS communication line, the ECU isolated from the communication line performs a fail-safe or backup operation, so the problem may not match the one shown in the Trouble Symptom Chart. However, the cause of the failure can be tracked down by performing the following troubleshooting with the SWS monitor.


54C-5M1549014800524

3. Confirming version number and destination Check whether the SWS version number (0) and destination (EU W/O DRL) meet the vehicle specifications. If they are different, replace the ETACS-ECU with a correct one. 4. ECU check on the SWS monitor Check whether the communication status of the input- or output-signal-side ECU associated with the defective function is normal. If "OK " is displayed for all related ECUs, they communicate with each other normally and the input or output signal circuit system may be defective. Therefore, check SWS monitor service data. If "NG" is displayed for any of the related ECUs, something may be wrong with the ECU for which "NG" appears, its power supply or earthing system, or a wiring harness or connector between the SWS monitor and the ECU. Check the wiring harness and connectors associated with the ECU and examine the ECU itself. 5. Check the data list by using the SWS monitor. Select the defective function from the function-specific diagnostic menu, and check the service data that appears for each function item. This allows you to check whether the transmission data is normal or not. You can judge which circuit is the cause of the trouble, input circuit or output circuit. NOTE: In addition to the function-specific diagnostic menu, a service data menu is available for SWS monitor service data to check all items for each ECU. The switch condition does not meet the service data display: Input signal system related to defective functions The switch condition meets the service data display: Output signal system related to defective functions 6. Check of input signal circuit system Check relevant switch, sensor, input signal-side ECU and their wiring harness and connector. 7. Check of output signal circuit system Check an output signal-side ECU, electrical load components and their wiring harness and connector.

HOW TO CONNECT THE SWS MONITORCAUTION Always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting the SWS monitor and the M.U.T.-II/III.

HOW TO CONNECT THE SWS COMMUNICATION LINE1. Connect M.U.T.-II/III to the diagnostic connector. 2. Remove the steering column cover. 3. Remove the steering column switch connector.

Column switch connector Column switch connector at harness side

MB991812

AC103262AE

4. Connect special tool SWS monitor harness (for column-ECU) MB991812 to the column switch connector and column switch harness connector.

HOW TO ESTABLISH COMMUNICATION BETWEEN DOORSMB991822 MB991812

MB991896

AC103783AC

1. Connect special tool SWS monitor harness (for column-ECU) MB991812 to special tool adapter harness for door communication MB991896. 2. Connect special tool Probe harness MB991822 to special tool adapter harness for door communication MB991896 assembled in step 1.

54C-6


3. Confirm that all the harnesses are connected. Then insert the probe of special probe harness MB991822 to each female connector terminal on special tool adapter harness for door communication MB991896 by backprobing. NOTE: For the connectors and their terminal numbers on the door communication line for the probe to insert, refer to the reference table.

Reference table of connectors and their terminal numbers on door communication line

Insert the probe of the probe harness to each female connector terminal on the door communication line by backprobing.

Connector name Intermediate connector Instrument panel wiring harness and front door wiring harness (LH) combination Instrument panel wiring harness and front door wiring harness (RH) combination Instrument panel wiring harness and floor wiring harness (RH) combination Instrument panel wiring harness and floor wiring harness (LH) combination Floor wiring harness (RH) and rear door wiring harness (RH) combination Floor wiring harness (LH) and rear door wiring harness (LH) combination Power window main switch Front power window sub switch Rear power window sub switch (LH) Rear power window sub switch (RH) Connector number C-17 [Front door wiring harness (LH) side] Terminal No. 7

C-110 [Front door wiring harness 8 (RH) side] C-113 (Instrument panel wiring harness side) C-127 (Instrument panel wiring harness side) D-04 [Floor wiring harness (RH) side] D-15 [Floor wiring harness (LH) side] E-05 E-14 E-08 E-17 20

2

7

7

11 6 6 6

SMART WIRING SYSTEM (SWS) USING SWS MONITORTROUBLESHOOTINGConnectors: C-17, C-127 Connector: D-04

54C-7

C-17 C-127AC310463AE

Connector: D-15 C-17 C-127

AC310447AH

AC310465AE

Connectors: C-110, C-113

Connector: E-05 Front door (LH)

4 5 6 1 2 3 7 8 9 10 111213 14

C-110 C-113 Connector: E-14 C-110 C-113AC310484AF

Front door (RH)

AC310453AC

AC310488AF

54C-8Connector: E-08

SMART WIRING SYSTEM (SWS) USING SWS MONITORTROUBLESHOOTINGConnector: E-17 Rear door (RH)

Rear door (LH)

AC310486AF

AC310491AE

Connector name Intermediate connector Instrument panel wiring harness and floor wiring harness (LH) combination Instrument panel wiring harness and front door wiring harness (RH) combination Instrument panel wiring harness and front door wiring harness (LH) combination Instrument panel wiring harness and floor wiring harness (LH) combination Floor wiring harness (RH) and rear door wiring harness (RH) combination Floor wiring harness (LH) and rear door wiring harness (LH) combination Power window main switch Front power window sub switch Rear power window sub switch (RH) Rear power window sub switch (LH) Connector number Terminal No. C-17 [Front door wiring harness 8 (LH) side] C-110 [Front door wiring harness (RH) side] C-113(Instrument panel wiring harness side) C-127 (Instrument panel wiring harness side) 7

2

13

D-04 [Floor wiring harness (RH) 7 side] D-15 [Floor wiring harness (LH) 7 side] E-05 E-14 E-17 E-08 11 6 6 6

SMART WIRING SYSTEM (SWS) USING SWS MONITORTROUBLESHOOTINGConnectors: C-110, C-113 Connector: D-04

54C-9

C-110 C-113AC310471AE

Connector: D-15

C-110

C-113

AC310473AF AC310457AC

Connectors: C-17, C-127

Connector: E-05 Front door (RH)

4 5 6 1 2 3 7 8 9 10 111213 14

C-17 C-127 Connector: E-14 Front door (LH) C-17 C-127AC310493AI

AC310455AF

AC310498 AE

54C-10Connector: E-08


ECU CHECKRear door (LH)

AC310486AF

Use the M.U.T.-II/III and the SWS monitor to check ECUs (Refer to M.U.T.-II Reference Manual or M.U.T.-III Users Manual). 1. The following ECUs can be checked by using the M.U.T.-II/III and the SWS monitor. NOTE: If a malfunction is found by the "ECU Check," proceed "Symptom Procedure" (Refer to P.54C-20).

M1549014900457

Connector: E-17

Rear door (RH)

AC310491AE

SWS MONITOR-COMPATIBLE ECUS AND THEIR CONDITIONSItem No. 80 ECUs to be checked Column switch (column-ECU) ETACS-ECU Display on M.U.T.-II/III COLUMN ECU Normal condition OK*1 ECU condition All of the column switch, power supply, earth and interconnecting communication line are normal All of the ETACS-ECU switch, power supply, earth and interconnecting communication line are normal All of the front-ECU, power supply, earth and interconnecting communication line are normal

83

ETACS ECU

OK

84

Front-ECU

FRONT ECU

OK*2

85

Power window main switch (power window module) Other SWS-related ECUs*1

P/W MODULE

OK*2 (when All of the power window main switch, power supply, earth and the ignition switch is ON) interconnecting communication line are normal NG ECUs are not used

NOTE: .

Other ECUs

: If "NG" is displayed beside the ETACS-ECU while the ignition switch is off, "NG" is also displayed beside the column-ECU. : If "NG" is displayed beside the ETACS-ECU, "NG" is also displayed beside the front-ECU and the power window main switch (power window module).*2


54C-11

DATA LIST CHECKM1549015000480

1. Use the M.U.T.-II/III and the SWS monitor to check "DATA LIST." This "DATA LIST" check is applicable for signals, which are transmitted and received through the SWS communication line and the communication lines routed from one door to another. For the input signals which are not applicable for the SWS monitor check, refer to pulse check procedure P.54C-24.

NOTE: If a problem is found in the "DATA LIST" check, refer to the Problems during Input Signal Check (Refer to P.54C-24). 2. The following input signals can be checked by using the M.U.T.-II/III and the SWS monitor.

DATA LIST REFERENCE TABLE COLUMN SWITCH (COLUMN-ECU)Item No. Check item 00 01 02 03 05 Headlamp switch Tail lamp switch Dimmer switch Display on M.U.T.-II/III HEADLAMP SW Check condition Lighting switch: HEAD Lighting switch: Other than HEAD Lighting switch: OFF DIMMER SW Dimmer switch: ON Dimmer switch: OFF Passing lamp which: ON Passing lamp which: OFF Wiper switch: Other than INT LO WIPER SW Wiper switch: LO Wiper switch: Other than LO HI WIPER SW Wiper switch: HI Wiper switch: Other than HI MIST WIPER SW Wiper switch: Mist Wiper switch: Other than mist Normal condition ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF EQUIP NONE

TAIL LAMP SW Lighting switch: TAIL

Passing lamp PASSING SW switch Windshield intermittent wiper switch Windshield low-speed wiper switch Windshield high-speed wiper switch Wind shield mist wiper switch Windshield washer switch Turn-signal lamp switch (RH) Turn-signal lamp switch (LH)

INT WIPER SW Wiper switch: INT

06

07

08

09

FRONT WASH. Windshield washer switch: ON SW Windshield washer switch: OFF TURN SIG. RH Turn-signal lamp switch: RH Turn-signal lamp switch: Other than RH TURN SIG. LH Turn-signal lamp switch: LH Turn-signal lamp switch: Other than LH

10

11

15

With or INT WIP KNOB Vehicles with intermittent wiper control without Vehicles without intermittent wiper control windshield intermittent wiper control

54C-12ETACS-ECUItem No. Check item 30 31 32 Ignition switch (IG1)


Display on M.U.T.-II/III IG SW(IG1)

Check condition Ignition switch: ON or START Ignition switch: LOCK (OFF) or ACC Ignition switch: ACC or ON Ignition switch: LOCK (OFF) or START

Normal condition ON OFF ON OFF ON

Ignition IG SW(ACC) switch (ACC)

Driver's door DR DOOR SW Driver's door switch ON (The drivers door switch is open).

Driver's door switch OFF (The driver's door OFF is closed). 33 Reception of P/W SW power ACCEPT window switch Headlamp automatic shutdown function Ignition switch: ON or START PERMIT Ignition switch: from ON or START to LOCK from PERMIT to (OFF) or ACC PROHIBIT (after approximately 30 seconds) OFF to ON (after approximately one second)

35

HD AUTO-CUT 1. Lighting switch: Other than OFF 2. Ignition switch: from ON or START to LOCK (OFF) or ACC 3. Driver's door switch: ON (driver's door open) When requirements for the headlamp automatic shutdown are not satisfied

OFF The M.U.T.-II/III displays intermittent wiper interval in response to the intermittent wiper control positions ON OFF ON

37

Windshield INT WIPE intermittent TIME wiper interval

1. Ignition switch: ACC or ON 2. Operate the intermittent wiper control, and change the wiper interval

41 43

Back-up lamp switch Buzzer

INHIBITOR SW Back-up lamp switch: ON Back-up lamp switch: OFF BUZZER 1. Ignition switch: LOCK (OFF) 2. Tail lamp or headlamp switch: ON 3. Driver's door switch: ON (driver's door open) When requirements for sounding each warning buzzer are not satisfied

OFF


54C-13Normal condition

FRONT-ECUItem No. Check item 70 Display on M.U.T.-II/III Check condition

Response by FRONT ECU the ACK front-ECU

Lighting switch: Other than OFF (excluding NORMAL ACK when high-beam is on) or the wiper switch is at position other than OFF Ignition switch: ON or START Lighting switch: OFF Lighting switch: HEAD Headlamps: at high beam SLEEP ACK HI-BEAM ACK NO ACK

NOTE: For item number 70, the M.U.T.-II/III also displays "NG" under the "ECU Check" when it displays "NO ACK" under the front-ECU check.

POWER WINDOW MAIN SWITCH (POWER WINDOW MODULE)Item No. Check item 71 Response from power window module Display on M.U.T.-II/III Check condition Normal condition NORMAL ACK

P/W ECU ACK Ignition switch: ON or START

INPUT CHECK 1. Ignition switch: ON or START 2. Operate any switch of the power window (only momentarily when switch is main switch. operated) NO ACK

NOTE: For item number 71, the M.U.T.-II/III also displays "NG" under the "ECU Check" when it displays "NO ACK" under the "P/W ECU ACK" check.

COMMUNICATION BETWEEN DOORSItem No. Check item C0 Front passenger's power window UP switch Front passenger's power window DOWN switch Display on M.U.T.-II/III Check condition Normal condition ON OFF ON OFF

PASS DOR UP Front passenger's power window switch: UP Front passenger's power window switch: Other than "UP" PASS DOR DOWN Front passenger's power window switch: DOWN Front passenger's power window switch: Other than "DOWN" Front passenger's power window switch: AUTO Front passenger's power window switch: Other than "AUTO"

C1

C2

Front PASS DOR passenger's AUTO power window AUTO switch

ON OFF

54C-14Item No. Check item C4 Rear right power window UP switch Rear right power window DOWN switch


Display on M.U.T.-II/III REAR RH UP

Check condition Rear right power window switch: UP

Normal condition ON

Rear right power window switch: Other than OFF "UP" REAR RH DOWN Rear right power window switch: DOWN ON

C5

Rear right power window switch: Other than OFF "DOWN" Rear right power window switch: AUTO ON

C6

Rear right REAR RH power AUTO window AUTO switch Rear left power window UP switch Rear left power window DOWN switch REAR LH UP

Rear right power window switch: Other than OFF "AUTO" Rear left power window switch: UP Rear left power window switch: Other than "UP" ON OFF ON OFF

C8

C9

REAR LH DOWN

Rear left power window switch: DOWN Rear left power window switch: Other than "DOWN" Rear left power window switch: AUTO Rear left power window switch: Other than "AUTO"

CA

Rear left REAR LH power AUTO window AUTO switch Power window lock switch Multi-stop

ON OFF ON OFF ON (only momentarily when switch is operated) OFF PERMIT

CB

P/W LOCK SW Power window lock switch: ON Power window lock switch: OFF MLT-MODE STOP 1. When multi-mode is working 2. Either function of keyless entry transmitter: ON Other than the conditions above Ignition switch: ON or START

CD

CE

Reception of P/W SW power RECEPT window switch Ignition switch (IG1) IG1

Ignition switch: from ON or START to LOCK from PERMIT to (OFF) or ACC PROHIBIT (after approximately 30 seconds) Ignition switch: ON or START Ignition switch: LOCK (OFF) or ACC ON OFF

CF

NOTE: Service data of door communication will be sent from the power window main switch to the door communication line. Therefore, the display will remain "OFF" unless the probe is inserted.


54C-15

FUNCTION DIAGNOSISThe table below shows the service data and their normal condition, which are displayed during the "FUNCTION DIAG." The row "Normal condition" shows values, which are shown when each operation is made.

WIPERItem F.WIPER INT (intermittent) Input signal Windshield intermittent wiper switch Windshield low-speed wiper switch Windshield high-speed wiper switch Wind shield mist wiper switch Item No. Display on M.U.T.-II/III 05 INT WIPER SW Normal condition ON

06

LO WIPER SW

OFF

07

HI WIPER SW

OFF

08

MIST WIPER SW FRONT WASH. SW IG SW(ACC) WIPER INT TIME

OFF OFF ON The M.U.T.-II/III displays intermittent wiper interval in response to the intermittent wiper control positions NORMAL ACK or HI-BEAM ACK OFF

Windshield washer 09 switch Ignition switch (ACC) Windshield intermittent wiper interval Response by the front-ECU F.WIPER LO (low speed) Windshield intermittent wiper switch Windshield low-speed wiper switch Windshield high-speed wiper switch Wind shield mist wiper switch 31 37

70 05

FRONT ECU ACK INT WIPER SW

06

LO WIPER SW

ON

07

HI WIPER SW

OFF

08

MIST WIPER SW FRONT WASH. SW IG SW(ACC) FRONT ECU ACK

OFF OFF ON NORMAL ACK or HI-BEAM ACK

Windshield washer 09 switch Ignition switch (ACC) Response by the front-ECU 31 70

54C-16Item F.WIPER HI (high speed)


Input signal Windshield intermittent wiper switch Windshield low-speed wiper switch Windshield high-speed wiper switch Wind shield mist wiper switch

Item No. Display on M.U.T.-II/III 05 INT WIPER SW

Normal condition OFF

06

LO WIPER SW

OFF

07

HI WIPER SW

ON

08

MIST WIPER SW FRONT WASH. SW IG SW(ACC) FRONT ECU ACK INT WIPER SW

OFF OFF ON NORMAL ACK or HI-BEAM ACK OFF

Windshield washer 09 switch Ignition switch (ACC) Response by the front-ECU F.WIPER MIST Windshield intermittent wiper switch Windshield low-speed wiper switch Windshield high-speed wiper switch Wind shield mist wiper switch 31 70 05

06

LO WIPER SW

OFF

07

HI WIPER SW

OFF

08

MIST WIPER SW FRONT WASH. SW IG SW(ACC) FRONT ECU ACK MIST WIPER SW FRONT WASH. SW IG SW(ACC) FRONT ECU ACK

ON OFF ON NORMAL ACK or HI-BEAM ACK OFF ON ON NORMAL ACK or HI-BEAM ACK

Windshield washer 09 switch Ignition switch (ACC) Response by the front-ECU F.WIPER WASH Wind shield mist wiper switch 31 70 08

Windshield washer 09 switch Ignition switch (ACC) Response by the front-ECU 31 70


54C-17

LIGHTINGItem OFF Input signal Headlamp switch Tail lamp switch Passing lamp switch Ignition switch (IG1) Headlamp automatic shutdown function Response by the front-ECU TAIL LAMP Headlamp switch Tail lamp switch Passing lamp switch Ignition switch (IG1) Headlamp automatic shutdown function Response by the front-ECU HEADLAMP Headlamp switch LO (low-beam) Passing lamp switch Ignition switch (IG1) Headlamp automatic shutdown function Response by the front-ECU HEADLAMP HI Headlamp switch (high-beam) Dimmer switch Ignition switch (IG1) Headlamp automatic shutdown function Response by the front-ECU Item No. Display on M.U.T.-II/III 00 01 03 30 35 HEADLAMP SW TAIL LAMP SW PASSING SW IG SW(IG1) HD AUTO-CUT Normal condition OFF OFF OFF ON OFF

70 00 01 03 30 35

FRONT ECU ACK HEADLAMP SW TAIL LAMP SW PASSING SW IG SW(IG1) HD AUTO-CUT

NORMAL ACK or HI-BEAM ACK OFF ON OFF ON OFF

70 00 03 30 35

FRONT ECU ACK HEADLAMP SW PASSING SW IG SW(IG1) HD AUTO-CUT

NORMAL ACK ON OFF ON OFF

70 00 02 30 35

FRONT ECU ACK HEADLAMP SW DIMMER SW IG SW(IG1) HD AUTO-CUT

NORMAL ACK ON ON ON OFF

70

FRONT ECU ACK

HI-BEAM ACK

54C-18Item PASSING LAMP


Input signal Passing lamp switch Response by the front-ECU

Item No. Display on M.U.T.-II/III 03 70 00 01 35 PASSING SW FRONT ECU ACK HEADLAMP SW TAIL LAMP SW HD AUTO-CUT

Normal condition ON NORMAL ACK or HI-BEAM ACK ON ON OFF

REAR FOG LAMP

Headlamp switch Tail lamp switch Headlamp automatic shutdown function Response by the front-ECU

70 00 01 30

FRONT ECU ACK HEADLAMP SW TAIL LAMP SW IG SW(IG1) DR DOOR SW HD AUTO-CUT

NORMAL ACK or HI-BEAM ACK Either is on OFF ON ON

HD AUTO-CUT Headlamp switch Tail lamp switch Ignition switch (IG1) Headlamp automatic shutdown function Response by the front-ECU NOTE: .

Driver's door switch 32 35

70

FRONT ECU ACK

NORMAL ACK or HI-BEAM ACK

1. When checking the input signals (off, tail, low-beam or high-beam), turn the ignition switch to the "ON" position in order to disable the headlamp automatic shutdown function. However, the titles on the M.U.T.-II/III screen will not be highlighted as this has nothing to do with actual lamp operation. 2. For checking item "HEADLAMP HI", the M.U.T.-II/III displays "OFF" on the item No.2 "DIMMER SW" when the headlamps are at high-beam. Therefore, the M.U.T.-II/III should display "ON" momentarily when the dimmer switch is operated.

TURN SIGNALItem TURN-SIG.RH Input signal Turn-signal lamp switch (RH) Turn-signal lamp switch (LH) Ignition switch (IG1) TURN-SIG.LH Turn-signal lamp switch (RH) Turn-signal lamp switch (LH) Ignition switch (IG1) Item No. Display on M.U.T.-II/III 10 11 30 10 11 30 TURN SIG.RH TURN SIG.LH IG SW(IG1) TURN SIG.RH TURN SIG.LH IG SW(IG1) Normal condition ON OFF ON OFF ON ON


54C-19

BUZZERItem LGT MONI_ALRM Input signal Headlamp switch Tail lamp switch Ignition switch (IG1) Headlamp automatic shutdown function Buzzer Item No. Display on M.U.T.-II/III 00 01 30 HEADLAMP SW TAIL LAMP SW IG SW(IG1) DR DOOR SW HD AUTO-CUT OFF ON OFF Normal condition Either is on

Driver's door switch 32 35

43

BUZZER

ON

NOTE: The headlamp automatic shutdown function works in approximately one second after the lighting monitor buzzer starts sounding, and then the buzzer ceases sounding.

PULSE CHECKM1549015100421

CAUTION Before connecting or disconnecting the M.U.T.-II/III, turn the ignition switch to the "LOCK" (OFF) position. 1. The input signals (signals other than communication line signals), which are compatible with the SWS monitor by using the M.U.T.-II/III or voltmeter, can be confirmed by the Pulse Check.

NOTE: If a problem is found in the "Pulse Check", refer to the Problems during Input Signal Check (Refer to P.54C-24). 2. Use the M.U.T.-II/III or voltmeter to check the following input signals.

SWITCHES WHICH ARE APPLICABLE TO INPUT SIGNAL CHECK, AND THEIR CHECK CONDITIONSInput signal Key reminder switch Hazard warning lamp switch All of the door switches Driver's door lock actuator Vehicle speed signal Keyless entry transmitter Interior lamp loaded signal Door lock key cylinder switch Switches Requirements for sounding buzzer When the inserted ignition key is pulled out. When the switch is turned from off to on. A door is opened when all the doors are closed. When the driver's key cylinder or inside lock knob is unlocked or locked. When the vehicle speed has reached 10 km/h or more. When the switch is turned from off to on. When a load is applied through multi-purpose fuse No.18. Turn the key to the lock or unlock position

54C-20

SMART WIRING SYSTEM (SWS) USING SWS MONITORTROUBLE SYMPTOM CHARTM1549027300024

M.U.T.-II/III DRIVE RECORDER FUNCTION1. The SWS monitor cartridge memory can store the ECU check results, the service data, the communication data obtained by the function diagnosis. This communication data can be displayed as a chart or graphical form.

2. If data obtained by the M.U.T.-II/III drive recorder function has to be stored for long time, the data can be transferred to the SWS monitor cartridge. By doing this, you can disconnect the M.U.T.-II/III to prevent excessive battery drain. NOTE: For the details about the M.U.T.-II drive recorder function, refer to M.U.T.-II Reference Manual. NOTE: For the details about the M.U.T.-III drive recorder function, refer to M.U.T.-III Users Manual.

TROUBLE SYMPTOM CHARTM1549000800877

Symptom

Inspection procedure number A-1 A-2 A-3 A-4 A-5

Reference page P.54C-26 P.54C-30 P.54C-36 P.54C-42 P.54C-47

Communication with the SWS monitor is not possible. Communication with the column switch (column-ECU) is not possible. Communication with the ETACS-ECU is not possible. Communication with the front-ECU is not possible. Communication with the power window main switch (power window module) is not possible.

SMART WIRING SYSTEM (SWS) USING SWS MONITORTROUBLE SYMPTOM CHART

54C-21Reference page P.54C-57 P.54C-59 P.54C-62 P.54C-65

Symptom Inspection procedure number Lamp reminder buzzer function does not work normally. B-1

Buzzer Central door locking system

Central door locking system does not work. Central door locking system does not work. A door or a tailgate cannot be locked or unlocked C-2 by the central door locking system. A door or a tailgate cannot be locked or unlocked by the central door locking system. The central door locking system can not be C-3 operated by means of the front passengers door lock key cylinder. The ignition key reminder function does not work C-4 normally. The impact detection door unlock function does not function. C-5 D-1 D-2

P.54C-72

P.54C-79

P.54C-81 P.54C-83 P.54C-86 P.54C-89

Power windows

Power windows do not work at all. Driver's power window does not work by means of the power window main switch. Driver's power window does not work by means of the power window main switch.

P.54C-91

Relevant power window(s) do not work by means D-3 of the front and rear passenger's power window sub switches. Front and/or rear passenger's power window(s) D-4 do not work by means of the power window main switch. The window glass lowers automatically while it is D-5 rising. Power window anti-trap function does not work normally. D-6

P.54C-93

P.54C-111

P.54C-123 P.54C-124

54C-22Symptom


Inspection procedure number E-1 E-2 Keyless entry hazard warning lamp answerback function or the room lamp answerback function does not work normally. Encrypted code cannot be registered. The timer lock function does not work after the doors have been unlocked by the keyless entry system.

Reference page P.54C-137 P.54C-139

Keyless entry system Keyless entry system does not work.

E-3 E-4

P.54C-140 P.54C-141

Windshield wiper and The windshield wipers do not work at all. F-1 washer The windshield wipers do not work when the F-2 wiper switch is at "INT", "WASHER" or "MIST" position. However, the wipers work at low speed when the switch is at "LO" and "HI" position. The windshield wipers do not stop at the specified park position. The windshield wipers do not work normally. F-3 F-4

P.54C-142 P.54C-149

P.54C-151 P.54C-156 P.54C-161

The intermittent wiper interval cannot be adjusted F-5 by operating the windshield intermittent wiper volume control. The intermittent wiper interval is not changed according to the vehicle speed. The windshield washer does not work. Ignition key cylinder illumination lamp Headlamp and tail lamp The ignition key cylinder illumination lamp does not illuminate/extinguish normally. The headlamps do not illuminate when the lighting switch is at "TAIL" or "PASSING" position, but illuminate only at low beam when the switch is at "HEAD" position. However, the headlamps do not illuminate at high beam. The tail lamps do not illuminate normally. The low-beam headlamps do not illuminate normally. The high-beam headlamps do not illuminate normally. F-6 F-7 G-1 H-1

P.54C-162 P.54C-164 P.54C-169 P.54C-173

H-2 H-3 H-4

P.54C-174 P.54C-177 P.54C-180 P.54C-182 P.54C-183 P.54C-185 P.54C-192

The high-beam and low-beam headlamps do not H-5 illuminate when the passing switch is operated. The headlamp automatic shutdown function does H-6 not work normally. Any of tail lamps, position lamps or licence plate H-7 lamps does not illuminate. Any of tail lamps, position lamps or licence plate lamps does not illuminate. The headlamp(s) do not illuminate. H-8

P.54C-199


54C-23Reference page P.54C-208 P.54C-213 P.54C-215 P.54C-223

Symptom

Inspection procedure number The turn-signal lamps do not illuminate. The hazard warning lamps do not illuminate. I-1 I-2

Flasher timer

Any of the turn-signal lamps does not illuminate. I-3 Any of the turn-signal lamps does not illuminate. Fog lamp The rear fog lamp do not illuminate normally. The rear fog lamp or the rear fog lamp indicator does not illuminate normally. Room lamp The front or rear room lamp does not illuminate or extinguish normally. Interior lamp automatic shutdown function does not work normally. The door-ajar warning lamp does not illuminate/extinguish normally. J-1 J-2 K-1 K-2 K-3

P.54C-231 P.54C-237 P.54C-244 P.54C-252 P.54C-254

54C-24

SMART WIRING SYSTEM (SWS) USING SWS MONITORCHECK TROUBLE BY USING THE INPUT SIGNAL CHECK

CHECK TROUBLE BY USING THE INPUT SIGNAL CHECKM1549024200329

If a problem is found in the Service Data or Pulse Check inspection, observe the table below. Symptom

Inspection procedure number L-1 L-2 L-3 L-4

Reference page P.54C-258 P.54C-261 P.54C-263 P.54C-265 P.54C-267

The ignition switch (ACC) signal is not received. The ignition switch (IG1) signal is not received. The door switch (front: LH) signal is not received. The door switch (front: RH) signal is not received. Column switch (lighting and turn-signal lamp switch) The tail lamp switch signal is not received. The headlamp switch signal is not received. The dimmer switch signal is not received. The passing switch signal is not received. The turn-signal lamp switch (LH) signal is not received. The turn-signal lamp switch (RH) signal is not received. The headlamp washer switch signal is not received. Column switch (windshield The windshield mist wiper switch wiper/washer and rear wiper washer signal is not received. switch) The windshield intermittent wiper switch signal is not received. The windshield low-speed wiper switch signal is not received. The windshield high-speed wiper switch signal is not received. The windshield washer switch signal is not received. The windshield intermittent wiper volume signal is not received. Power window main switch

L-5

P.54C-268

L-6

P.54C-270 P.54C-274

When the power window main switch L-7 is operated, the switch signals are not received. L-8 L-9 L-10 L-11

The rear fog lamp switch signal is not received. The key reminder switch signal is not received. The hazard warning lamp switch signal is not received. All the door switch signals are not received. LH drive vehicles RH drive vehicles

P.54C-277 P.54C-281 P.54C-285 P.54C-289 P.54C-292

OPERATION AND FUNCTION QUICK-REFERENCE TABLE FOR INPUT SIGNAL INSPECTION PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-25Reference page P.54C-296 P.54C-299

Symptom

Inspection procedure number L-12

The front door lock actuator (LH) switch signal is not received. The front door lock actuator (RH) switch signal is not received. The vehicle speed sensor signal is not received. Each switch signal of the keyless entry transmitter is not received. The interior lamp loaded signal is not detected. The door lock key cylinder switch signal is not detected.

L-13 L-14 L-15 L-16

P.54C-302 P.54C-306 P.54C-307 P.54C-312

OPERATION AND FUNCTION QUICK-REFERENCE TABLE FOR INPUT SIGNAL INSPECTION PROCEDURESIf troubles have occurred in the functions which use the SWS simultaneously, observe the table below to check input signals. Function Lamp reminder function Control of central door locking Key reminder function Door locking released due to impact detection. Keyless entry system Keyless entry hazard warning lamp answerback Power window control Control of windshield wiper washer Ignition key cylinder illumination lamp function Headlamp control Tail lamp control Headlamp automatic shutdown function Fog lamp control Turn-signal lamp control Dome lamp control Interior lamp automatic shutdown function Door-ajar indicator lamp L-1 (This table shows only the input signals which will cause troubles in at least two functions simultaneously). L-2 L-3 L-4 L-9 L-11 L-12 M1549020300324

L-15

54C-26

SMART WIRING SYSTEM (SWS) USING SWS MONITORSYMPTOM PROCEDURES

SYMPTOM PROCEDURESINSPECTION PROCEDURE A-1: Communication with the SWS monitor is not possible.

CAUTION Whenever the ECU is replaced, ensure that the power supply circuit, the earthing circuit and the communication circuit are normal.MUT-II/III Communication Circuit and ETACS-ECU Ground Circuit

ETACSECU

J/B SIDE

LHD

RHD

DIAGNOSIS CONNECTOR Wire colour code B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue BR : Brown O : Orange GR : Gray R : Red P : Pink V : VioletFRONT SIDE

COMMENTS ON TROUBLE SYMPTOMThe SWS monitor may be connected improperly.

DIAGNOSIS PROCEDUREStep 1. Check that the M.U.T.-II/III communicates with the other systems. Use the M.U.T.-II/III to confirm that it communicates with the engine-ECU.Q: Is the check result normal? YES : Go to Step 2. NO : Diagnose the engine control system. Refer

POSSIBLE CAUSES Malfunction of the SWS monitor body (I/F cartridge) Malfunction of the SWS monitor harness Malfunction of the ETACS-ECU Damaged harness wires and connectors

to GROUP 13A Troubleshooting P.13A-237.


54C-27

Step 2. Check that the M.U.T.-II/III can communicate with the system. When the ignition switch is turned ON, check if the M.U.T.-II/III can communicate with the system.Q: Is the check result normal? YES : Refer to Inspection Procedure A-3

Step 4. Resistance measurement at the C-228 ETACS-ECU connectorConnector: C-228 Junction block (rear view)

"Communication with the ETACS-ECU is not possible P.54C-36." NO : Go to Step 3.C-228 (GR)

Harness side59 58 57 56 55 54 53 52 51 68 67 66 65 64 63 62 61 60 74 73 72 71 70 69

Step 3. Connector check: C-228 ETACS-ECU connectorConnector: C-228 Junction block (rear view) Connector: C-228 Junction block (rear view)

AC310450AC

Harness side Harness side C-228 (GR)59 58 57 56 55 54 53 52 51 68 67 66 65 64 63 62 61 60 74 73 72 71 70 69 59 58 57 56 55 54 53 52 51 68 67 66 65 64 63 62 61 60 74 73 72 71 70 69

C-228 (GR)AC310461AC

AC310450AC



Harness side59 58 57 56 55 54 53 52 51 68 67 66 65 64 63 62 61 60 74 73 72 71 70 69

C-228 (GR)AC310461AC

59 58 57 5655 54 53 52 51 68 67 66 6564 63 62 61 60 71 70 69 74 73 72


Connector C-228 (Harness side)AC310506AB

(2) Resistance between C-228 ETACS-ECU connector terminal No.56 and body earth OK: 2 or lessQ: Is the check result normal? YES : Go to Step 6. NO : Go to Step 5.

54C-28

SMART WIRING SYSTEM (SWS) USING SWS MONITORSYMPTOM PROCEDURES Q: Are the check results normal? YES : The trouble can be an intermittent

Step 5. Check the wiring harness between C-228 ETACS-ECU connector terminal No.56 and body earth.Connector: C-228 Junction block (rear view)


Step 6. Connector check: C-14 diagnosis connectorHarness side C-228 (GR)59 58 57 56 55 54 53 52 51 68 67 66 65 64 63 62 61 60 74 73 72 71 70 69

Connector: C-14

AC310450AC


Front sideC-14 (B)

AC310446 AB

Connector: C-14 Harness side59 58 57 56 55 54 53 52 51 68 67 66 65 64 63 62 61 60 74 73 72 71 70 69

C-228 (GR)AC310461AC

NOTE:Connector: C-06 C-06 (GR)C-14 (B)

Front side

AC310456 AC


AC310452 AB

Connector: C-06 C-06 (GR)

AC310456 AB

Prior to the wiring harness inspection, check joint connector C-06, and repair if necessary. Check the earth wires for open circuit.


54C-29

Step 7. Check the wiring harness from C-228 ETACS-ECU connector terminal Nos.51 and 67 to C-14 diagnosis connector terminal Nos.9 and 1.Connector: C-14


C-23 (B)

Front sideC-14 (B)

AC310446AY

Connector: C-21 AC310446 AB

Connector: C-14

Front sideC-14 (B)AC310454AB

AC310456 AC


Prior to the wiring harness inspection, check joint connector C-23 or C-21 , and repair if necessary. Check the communication lines for open circuit.Q: Are the check results normal? YES : Replace the ETACS-ECU. NO : Repair the wiring harness.

Harness side C-228 (GR)59 58 57 56 55 54 53 52 51 68 67 66 65 64 63 62 61 60 74 73 72 71 70 69

AC310450AC


Harness side59 58 57 56 55 54 53 52 51 68 67 66 65 64 63 62 61 60 74 73 72 71 70 69

C-228 (GR)AC310461AC

54C-30


INSPECTION PROCEDURE A-2: Communication with the column switch (column-ECU) is not possible.

CAUTION Whenever the ECU is replaced, ensure that the power supply circuit, the earthing circuit and the communication circuit are normal.Column Switch Power Supply and SWS Communication Circuit IGNITION SWITCH (IG1)

BATTERY

RELAY BOX

LHD

RHD

LHD

RHDNOTE : LHD : RHD

COLUMN-ECU

COLUMN SWITCH

ETACS-ECU

Wire colour code B : Black LG : Light green G : Green L: Blue W : White Y: Yellow SB : Sky blue BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet


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2001 Mitsubishi Lancer Evo IX