Mitsubishi L200. Manual — part 504
DOOR
BODY
42-76
Inspection Procedure A-3: A Door cannot be Locked or Unlocked by the Central Door Locking System
<RH drive vehicles>.
AC809133
<DOUBLE CAB>
FRONT
DOOR LOCK
ACTUATOR
(LH)
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
(RH)
DOOR
UNLOCK
RELAY
DOOR
LOCK
RELAY
Central Door Lock Circuit <RHD>
AC
C-121
C-122
C-122
W-G
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.
PROBABLE CAUSES
• Malfunction of the door lock actuator
• Damaged harness wires and connectors
DOOR
BODY
42-77
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-04 front door lock
actuator (RH) connector
AC509954AF
Harness side
E-04 (B)
Connector: E-04 <RHD>
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the defective connector.
STEP 3. Check the front door lock actuator (RH)
Check that the front door lock actuator (RH) works
normally. Refer to
.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Replace the front door lock actuator (RH).
STEP 4. Connector check: C-220 ETACS-ECU
connector
AC509943
Connector: C-220 <RHD>
AD
Junction block
(Rear view)
Harness side
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the defective connector.
STEP 5. Check the wiring harness between C-220
ETACS-ECU connector terminal Nos. 21, 23 and
E-04 front door lock actuator (RH) connector
terminal Nos. 6, 4.
AC509943
Connector: C-220 <RHD>
AD
Junction block
(Rear view)
Harness side
AC509954AF
Harness side
E-04 (B)
Connector: E-04 <RHD>
NOTE:
AC509930AJ
Connector: C-32 <RHD>
C-32 (GR)
AC903868
AG
Connector: C-122 <RHD>
Harness side
Prior to the wiring harness inspection, check interme-
diate connector C-122 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?
DOOR
BODY
42-78
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-15 front door lock
actuator (LH) connector
AC509952
Connector: E-15 <RHD>
AF
Harness side
E-15 (B)
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the defective connector.
STEP 7. Check the front door lock actuator (LH).
Check that the front door lock actuator (LH) works
normally. Refer to
.
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Replace the front door lock actuator (LH).
STEP 8. Connector check: C-220 ETACS-ECU
connector
AC509943
Connector: C-220 <RHD>
AD
Junction block
(Rear view)
Harness side
Q: Is the check result normal?
YES :
Go to Step 9.
NO :
Repair the defective connector.
STEP 9. Check the wiring harness between C-220
ETACS-ECU connector terminal Nos. 22, 23 and
E-15 front door lock actuator (LH) connector
terminal Nos. 6, 4.
AC509943
Connector: C-220 <RHD>
AD
Junction block
(Rear view)
Harness side
AC509952
Connector: E-15 <RHD>
AF
Harness side
E-15 (B)
NOTE:
AC509930BW
Connectors: C-32, C-133 <RHD>
C-32 (GR)
C-32 (GR)
C-133
C-133
Prior to the wiring harness inspection, check interme-
diate connector C-133 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.
DOOR
BODY
42-79
STEP 10. Connector check: E-07 rear door lock
actuator (RH) connector
AC509958AB
Harness side
E-07 (B)
Connector: E-07
Q: Is the check result normal?
YES :
Go to Step 11.
NO :
Repair the defective connector.
STEP 11. Check the rear door lock actuator (RH).
Check that the rear door lock actuator (RH) is in
good condition. Refer to
.
Q: Is the check result normal?
YES :
Go to Step 12.
NO :
Replace the tailgate lock actuator.
STEP 12. Connector check: C-220 ETACS-ECU
connector
AC509943
Connector: C-220 <RHD>
AD
Junction block
(Rear view)
Harness side
Q: Is the check result normal?
YES :
Go to Step 13.
NO :
Repair the defective connector.
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