Mitsubishi Colt Ralliart. Manual - part 388

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-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

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-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. 
Also, the function to interlock the shift P position with 
door unlocking may have been disabled with a cus-
tomisation function.

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.54C-51

."

Step 2. Customize function by using the SWS 
monitor
Use the SWS monitor customisation function to con-
firm that "P UNLOCK ACT" is set to "W.FUNCTION".

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Use the SWS monitor customisation 
function to set "P UNLOCK ACT" to 
"W.FUNCTION" (Refer to 

P.54C-240

).

Step 3. 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 4.

Step 4. 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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TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-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

Main

Index

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SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-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. ECU check by using the SWS monitor
Check that the power supply and earth lines to the 
ETACS-ECU and the power window main switch 
(power window module) and the SWS communica-
tion lines are normal.

• Turn the ignition switch to the ON position.

ECU TO BE CHECKED

• ETACS ECU

OK: "OK" are displayed for all the items

Q: Are the check results normal?

"OK" are displayed for all the items : 

Go to Step 2.

"NG" is displayed on the "ETACS ECU" menu. : 

Refer to Inspection Procedure A-3 
"Communication with the ETACS-ECU is 
not possible 

P.54C-41

."

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.

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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