Mitsubishi Colt Ralliart. Manual - part 329

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-60

Step 16. Check the wiring harness from B-132 
ETACS-ECU connector terminal Nos.22 and 23 to 
E-05 tailgate lock actuator connector terminal 
Nos. 2 and 1.

NOTE: 

Prior to the wiring harness inspection, check interme-
diate connector C-12, and repair if necessary.

• Check the input and output lines for open circuit.

Q: Is the check result normal?

YES : 

The trouble can be an intermittent 

malfunction (Refer to GROUP 00 

− How to 

use Troubleshooting/inspection Service 
Points 

− How to Cope with Intermittent 

Malfunction 

P.00-13

).

NO : 

Repair the wiring harness.

AC313872

Connector: B-132

AI

Harness side

Junction block (Rear view)

AC401046

Connector: E-05

AB

Harness side

E-05(B)

AC401059

Connector: C-12

AC

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SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-61

INSPECTION PROCEDURE C-3: Selector "P" position-linked door unlock function does not operate. 
<CVT>

CAUTION

Whenever the ECU is replaced, ensure that the 
input and output signal circuits are normal.

COMMENT ON TROUBLE SYMPTOM

If the doors are not unlocked when the selector lever 
is shifted to the P position, the shift position signal 
input circuit(s) or the ETACS-ECU may be defective.

POSSIBLE CAUSES

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Checking central door unlocking 
operation
Check that the central door locking system works 
normally.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Refer to Inspection Procedure C-1 "Central 
door locking system does not work 

P.54B-52

."

Step 2. M.U.T.-III other system diagnosis code
Check whether the engine-CVT-ECU-related diagno-
sis code is set.

Q: Is the diagnosis code set?

YES : 

Diagnose the CVT (Refer to GROUP 23A 

− 

Troubleshooting 

P.23A-14

).

NO : 

Go to Step 3.

Step 3. Retest the system.
Check that shifting the selector lever to the P position 
unlocks the doors.

Q: Is the check result normal?

YES : 

The trouble can be an intermittent 

malfunction (Refer to GROUP 00 

− How to 

use Troubleshooting/inspection Service 
Points 

− How to Cope with Intermittent 

Malfunction 

P.00-13

).

NO : 

Replace the ETACS-ECU.

Selector "P" Position-linked Door Unlock Function

ETACS-ECU

ENGINE-CVT-
ECU

CAN COMMUNICATION LINE
(CAN_L LINE)

CAN COMMUNICATION LINE
(CAN_H LINE)

INPUT SIGNAL

INHIBITOR SWITCH ("P" POSITION)

Main

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SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-62

POWER WINDOW

Inspection Procedure D-1: Power windows do not work at all.

CAUTION

Whenever the ECU is replaced, ensure that the 
input and output signal circuits are normal.

Power Window Relay Circuit

POWER WINDOW
RELAY

ETACS-ECU

POWER WINDOW
MAIN SWITCH

POWER 
WINDOW 
SUB 
SWITCH 
(FRONT: LH)

POWER 
WINDOW 
SUB 
SWITCH 
(REAR: LH)

POWER 
WINDOW 
SUB 
SWITCH 
(REAR: RH)

IC

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

FUSIBLE 
LINK

1

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SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-63

COMMENTS ON TROUBLE SYMPTOM

If the power windows do not work at all, the power 
window relay, the power window main switch or the 
ETACS-ECU may be defective.

POSSIBLE CAUSES

• Malfunction of the power window relay

• Malfunction of the power window main switch

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Pulse check
Check the input signal from the ignition switch.

OK: The M.U.T.-III sounds or the voltmeter 
needle fluctuates.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Refer to Inspection Procedure A-2 "When 
the ignition switch is at the LOCK (OFF) 
position, the functions do not work normally. 
Check the battery power supply circuit to 
the ETACS-ECU 

P.54B-43

."

Step 2. Connector check: D-03 power window 
main switch connector

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair the defective connector.

Step 3. Check the power window main switch.
Refer to GROUP 42 

− Door 

P.42-42

.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Replace the power window main switch.

Step 4. Voltage measurement at the D-03 power 
window main switch connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Ignition switch: ON

(3) Voltage between D-03 power window main switch 

connector terminal No.10 and body earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 13.

NO : 

Go to Step 5.

Step 5. Connector check: B-126 power window 
relay connector

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the defective connector.

System switch

Check condition

Ignition switch (IG1) When turned from ACC to 

ON

AC313837

Connector: D-03

Harness side

AC

AC313837

Connector: D-03

Harness side

AC

AC310507 FQ

Connector D-03
(Harness side)

AC313824

Connector: B-126

AE

Junction block side

Junction block (Front view)

Main

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