Mitsubishi Colt Ralliart. Manual - part 420

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-188

Step 6. Connector check: C-04 room lamp 
connector

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the defective connector.

Step 7. Check the wiring harness from C-04 room 
lamp connector terminal No.3 to fusible link (1).

NOTE: 

Prior to the wiring harness inspection, check interme-
diate connector C-02 and junction block connector 
B-108 and B-113 repair if necessary.

• Check the power supply line 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.

AC401057

Connector: C-04

Harness side

AC

AC401058

Connectors: C-02, C-04

Harness side

AB

C-02

C-04

C-02

C-04

AC313825 AB

Connectors: B-108, B-113

Junction Block (Front view)

B-113

B-108 (B)

Harness side

B-108

Harness side

B-113

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-189

Step 8. Connector check: B-134 ETACS-ECU 
connector, C-04 room lamp connector

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Repair the defective connector.

Step 9. Check the wiring harness from B-134 
ETACS-ECU connector terminal No.18 to C-04 
room lamp connector terminal No.1

NOTE: 

Prior to the wiring harness inspection, check interme-
diate connector C-02 and junction block connector 
B-113 repair if necessary.

• Check the input and output lines for open circuit.

Q: Is the check result normal?

YES : 

Replace the ETACS-ECU.

NO : 

Repair the wiring harness.

AC313826

Connector: B-134

AG

Junction block side

Junction block (Rear view)

AC401057

Connector: C-04

Harness side

AC

AC313826

Connector: B-134

AG

Junction block side

Junction block (Rear view)

AC401058

Connectors: C-02, C-04

Harness side

AB

C-02

C-04

C-02

C-04

AC313824

Harness side

AB

Connector: B-113

Junction block (Front view)

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-190

Step 10. Connector check: C-04 room lamp 
connector

Q: Is the check result normal?

YES : 

Go to Step 11.

NO : 

Repair the defective connector.

Step 11. Check the wiring harness from C-04 
room lamp connector terminal No.2 to body 
earth.

NOTE: 

Prior to the wiring harness inspection, check interme-
diate connector C-02 and junction block connector 
B-113 and B-130 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 

use Troubleshooting/inspection Service 
Points 

− How to Cope with Intermittent 

Malfunction 

P.00-13

).

NO : 

Repair the wiring harness.

AC401057

Connector: C-04

Harness side

AC

AC401058

Connectors: C-02, C-04

Harness side

AB

C-02

C-04

C-02

C-04

AC313824

Harness side

AB

Connector: B-113

Junction block (Front view)

AC313826

Harness side

AE

Connector: B-130

Junction block (Rear view)

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-191

INSPECTION PROCEDURE M-2: The room lamp does not illuminate normally.

CAUTION

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

ETACS-ECU

ROOM 
LAMP

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

J/B SIDE

FUSIBLE
LINK

1

Room Lamp Circuit

Main

Index

Group

TOC