Mitsubishi L200. Manual — part 705

INTERIOR LAMP

CHASSIS ELECTRICAL

54A-187

Inspection Procedure 3: The rear room lamp does not illuminate normally. <vehicles without sunroof>

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM
If the rear room lamp do not illuminate, the wiring
harness connector(s), the bulb or the fuse may be
defective or burned out.

PROBABLE CAUSES

• Malfunction of the rear room lamp

• Malfunction of the rear room lamp bulbs

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Check if the front room lamp and ignition
key cylinder illumination lamp illuminates.
Check whether the front room lamp and ignition key
cylinder illumination lamp illuminates normally.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Refer to Inspection Procedure 1 "The
interior lamps (front room ramp, rear room
lamp and ignition key cylinder illumination
lamp) does not illuminate or extinguish
normally

P.54A-181

."

STEP 2. Retest the system.

Q: At which switch positions (DOOR or ON), the rear

room lamp does not illuminate?

Rear Room Lamp Circuit

REAR ROOM
LAMP

<DOUBLE CAB>

<SINGLE CAB>

ETACS-ECU

FUSIBLE
LINK

20

J/B SIDE

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 SI : Silver

INTERIOR LAMP

CHASSIS ELECTRICAL

54A-188

The lamp does not illuminate at both the ON and
DOOR positions. :

Go to Step 3.

The lamp does not illuminate at the door position. :

Go to Step 7.

The lamp does not illuminate at the ON position. :

Replace the rear room lamp.

STEP 3. Connector check: D-06 rear room lamp
connector

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Repair the defective connector.

STEP 4. Check the bulb.
Check that the rear room lamp bulb is not blown.

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Replace the rear room lamp bulb.

STEP 5. Check the rear room lamp.
Check whether the rear room lamp illuminates nor-
mally.

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Replace the rear room lamp.

STEP 6. Check the wiring harness from D-06 rear
room lamp connector terminal No.1 to fusible
link (20).

NOTE:

Prior to the wiring harness inspection, check junction
block connectors C-206 and C-213, and repair if nec-
essary.
Check the power supply line for open circuit and
short circuit.

Q: Is the check result normal?

AC903885AT

Harness side

D-06 (GR)

Connector: D-06 <LHD>

Harness side

D-06 <SINGLE CAB>

D-06 <DOUBLE CAB>

AC903886 AN

Harness side

Connector: D-06 <RHD>

Harness side

D-06 <SINGLE CAB>

D-06 <DOUBLE CAB>

D-06 (GR)

AC903885AT

Harness side

D-06 (GR)

Connector: D-06 <LHD>

Harness side

D-06 <SINGLE CAB>

D-06 <DOUBLE CAB>

AC903886 AN

Harness side

Connector: D-06 <RHD>

Harness side

D-06 <SINGLE CAB>

D-06 <DOUBLE CAB>

D-06 (GR)

AC509934

Connectors: C-206, C-213 <LHD>

Junction block (Front view)

C-213

C-206

C-206

C-213

AG

Harness side

Harness side

AC509936

Connectors: C-206, C-213 <RHD>

C-213

C-206

C-213

Harness side

Harness side

C-206

AF

Junction block
(Front view)

INTERIOR LAMP

CHASSIS ELECTRICAL

54A-189

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

− How to

Cope with Intermittent Malfunction ).

NO :

Repair the wiring harness.

STEP 7. Connector check: C-218 ETACS-ECU
connector and D-06 rear room lamp connector

Q: Is the check result normal?

YES :

Go to Step 8.

NO :

Repair the defective connector.

AC509934

Connector: C-218 <LHD>

AJ

Junction

block

Junction block side

AC509943

Connector: C-218 <RHD>

AC

Junction block

(Rear view)

Junction block side

AC903885AT

Harness side

D-06 (GR)

Connector: D-06 <LHD>

Harness side

D-06 <SINGLE CAB>

D-06 <DOUBLE CAB>

AC903886 AN

Harness side

Connector: D-06 <RHD>

Harness side

D-06 <SINGLE CAB>

D-06 <DOUBLE CAB>

D-06 (GR)

INTERIOR LAMP

CHASSIS ELECTRICAL

54A-190

STEP 8. Check the wiring harness from C-218
ETACS-ECU connector terminal No.18 to D-06
rear room lamp connector terminal No.2

AC509935AF

Connectors: C-206, C-218 <LHD>

C-218

C-206

Junction block side

Harness side

C-206

C-218

AC509943

Connector: C-218 <RHD>

AC

Junction block

(Rear view)

Junction block side

AC903885AT

Harness side

D-06 (GR)

Connector: D-06 <LHD>

Harness side

D-06 <SINGLE CAB>

D-06 <DOUBLE CAB>

AC903886 AN

Harness side

Connector: D-06 <RHD>

Harness side

D-06 <SINGLE CAB>

D-06 <DOUBLE CAB>

D-06 (GR)