Mitsubishi L200. Manual - part 502

DOOR

BODY

42-68

STEP 3. Check the wiring harness between C-218 
ETACS-ECU connector terminal No.1 and fusible 
link (20).

AC509934

Connector: C-218 <LHD>

AJ

Junction 

block

Junction block side

AC509943

Connector: C-218 <RHD>

AC

Junction block

 (Rear view)

Junction block side

AC600241AB

Battery

Fusible link (20)

Front of vehicle

24

23

22

21

20

19

NOTE: 

AC509934

Connector: C-213 <LHD>

Junction block

AK

Harness side

AC509936

Connector: C-213 <RHD>

Harness side

AI

Junction block 

(Front view)

Prior to the wiring harness inspection, check junction 
block connector C-213, and repair if necessary.

• Check the power supply line for open and short 

circuit.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the wiring harness.

STEP 4. Retest the system.
Check that the central door locking system works 
normally.

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 ).

NO : 

Replace the ETACS-ECU and register the 
ID codes (Refer to GROUP 54A, How to 
Register Encrypted Code ).

DOOR

BODY

42-69

Inspection Procedure A-2: A Door cannot be Locked or Unlocked by the Central Door Locking System 
<LH drive vehicles>.

AC903666

6

5

8

9

9

8

8

<DOUBLE CAB>

FRONT 
DOOR LOCK
ACTUATOR 
(RH)

REAR 
DOOR LOCK
ACTUATOR 
(LH)

ETACS-
ECU

REAR 
DOOR LOCK
ACTUATOR 
(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 : Grey     R : Red     P : Pink     V : Violet     PU : Purple

FRONT 
DOOR LOCK
ACTUATOR 
(LH)

DOOR

UNLOCK

RELAY

DOOR

LOCK

RELAY

Central Door Lock Circuit (LHD)

AB

COMMENT ON TROUBLE SYMPTOM
If a door cannot be locked or unlocked by the central 
door locking system, the door lock actuator may be 

defective.

DOOR

BODY

42-70

PROBABLE CAUSES

• Malfunction of the door 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 <Double cab> : 

Go to Step 10.

Rear left door <Double cab> : 

Go to Step 14.

STEP 2. Connector check: E-15 front door lock 
actuator (LH) connector

AC509952

Connector: E-15 <LHD>

AD

Harness side

E-15 (B)

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair the defective connector.

STEP 3. Check the front door lock actuator (LH)
Check that the front door lock actuator (LH) works 
normally. Refer to 

P.42-194

.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Replace the front door lock actuator (LH).

STEP 4. Connector check: C-220 ETACS-ECU 
connector

AC509934

Connector: C-220 <LHD>

AM

Junction block

Harness side

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the defective connector.

DOOR

BODY

42-71

STEP 5. Check the wiring harness between C-220 
ETACS-ECU connector terminal Nos. 21, 23 and 
E-15 front door lock actuator (LH) connector 
terminal Nos. 6, 4.

AC509934

Connector: C-220 <LHD>

AM

Junction block

Harness side

AC509952

Connector: E-15 <LHD>

AD

Harness side

E-15 (B)

NOTE: 

AC509611AL

Connector: C-32 <LHD>

C-32 (GR)

AC903856AG

Connector: C-134 <LHD>

Harness side

Prior to the wiring harness inspection, check interme-
diate connector C-134 and junction block connector 
C-32, and repair if necessary.

• Check the power supply line for open and short 

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 ).

NO : 

Repair the wiring harness.

STEP 6. Connector check: E-04 front door lock 
actuator (RH) connector

AC509954AD

Harness side

E-04 (B)

Connector: E-04 <LHD>

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the defective connector.

STEP 7. Check the front door lock actuator (RH).
Check that the front door lock actuator (RH) works 
normally. Refer to 

P.42-194

.

Q: Is the check result normal?

YES : 

Go to Step 8.

NO : 

Replace the front door lock actuator (RH).

STEP 8. Connector check: C-220 ETACS-ECU 
connector

AC509934

Connector: C-220 <LHD>

AM

Junction block

Harness side

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Repair the defective connector.