Mitsubishi Grandis. Manual — part 29

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-113

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.

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-114

Inspection Procedure C-5: A door can not be locked or unlocked by the central door locking system.
<RH drive vehicles>

Central Door Lock Circuit <RHD>

ETACS-ECU

DOOR LOCK
ACTUATOR
(FRONT: RH)

DOOR LOCK
ACTUATOR
(FRONT: LH)

DOOR LOCK
ACTUATOR
(REAR: LH)

DOOR LOCK
ACTUATOR
(REAR: RH)

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

DOOR
UNLOCK
RELAY

DOOR
LOCK
RELAY

J/B SIDE

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-115

COMMENT ON TROUBLE SYMPTOM

If a door or the tailgate can not be locked or unlocked
by the central door locking system, the door lock
actuator or the tailgate lock actuator may be
defective.

POSSIBLE CAUSES

• Malfunction of the door lock actuator

• Malfunction of the tailgate lock actuator

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Confirm which door lock actuator is
defective.

Q: Which door fails to lock correctly?

Driver's door :

Go to Step 2.

Front passenger's door :

Go to Step 6.

Rear right door :

Go to Step 10.

Rear left door :

Go to Step 14.

Step 2. Connector check: F-17 door lock actuator
(front: RH) connector

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Repair the defective connector.

Step 3. Check the door lock actuator (front: RH)
Check that the door lock actuator (front: RH) works
normally. Refer to GROUP 42

− Door

P.42-38

.

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Replace the door lock actuator (front: RH).

Step 4. Connector check: C-219, C-220
ETACS-ECU connector

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Repair the defective connector.

AC310213

AC

Connector: F-17
<RHD>

Harness side

F-17(B)

AC310621

Connectors: C-219, C-220
<RHD>

C-220

AB

C-220

Junction block (Rear view)

Junction block side

C-219

C-219

Harness side

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-116

Step 5. Check the wiring harness from C-219
ETACS-ECU connector terminal No.12 and C-220
ETACS-ECU connector No.22 to F-17 door lock
actuator (front: RH) connector terminal Nos.4
and 6.

NOTE:

Prior to the wiring harness inspection, check
intermediate connector C-14 and junction block
connector C-205, 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

Cope with Intermittent Malfunction

P.00-5

).

NO :

Repair the wiring harness.

Step 6. Connector check: F-04 door lock actuator
(front: LH) connector

Q: Is the check result normal?

YES :

Go to Step 7.

NO :

Repair the defective connector.

Step 7. Check the door lock actuator (front: LH).

Check that the door lock actuator (front: LH) works
normally. Refer to GROUP 42

− Door

P.42-38

.

Q: Is the check result normal?

AC310621

Connectors: C-219, C-220
<RHD>

C-220

AB

C-220

Junction block (Rear view)

Junction block side

C-219

C-219

Harness side

AC310213

AC

Connector: F-17
<RHD>

Harness side

F-17(B)

AC310631

Connector: C-14 <RHD>

AG

AC310618

Connector: C-205 <RHD>

AM

Junction block (Front view)

Harness side

AC310211

AE

Connector: F-04 <RHD>

Harness side

F-04(B)