Mitsubishi L200. Manual — part 673

COMBINATION METER

CHASSIS ELECTRICAL

54A-59

tool test harness (MB991219) between the wiring
harness connector terminals 1 and 2.

(3) Turn the ignition switch to the "ON" position.

Q: Does the test lamp illuminate?

YES :

Go to Step 7.

NO :

Go to Step 2.

STEP 2. Connector check: Combination meter
connector C-113 and fuel gauge unit connector
F-09.

Q: Is combination meter connector C-113 and fuel

gauge unit connector F-09 in good condition?
YES :

Go to Step 3.

NO :

Repair or replace the damaged
component(s).

STEP 3. Check the wiring harness between
combination meter connector C-113 (terminal 22)
and fuel gauge unit connector F-09 (terminal 1).
Check the input lines for open circuit and short cir-
cuit.

NOTE:

Prior to the wiring harness inspection, check interme-
diate connector C-30 and repair if necessary.

Q: Is the wiring harness between combination meter

connector C-113 (terminal 22) and fuel gauge unit
connector F-09 (terminal 1) in good condition?

AC903856

Harness side

BH

Connector: C-113 <LHD>

AC903868

Harness side

BY

Connector: C-113 <RHD>

AC903957AB

Connector: F-09

Harness side

<Vehicles without
rear body>

AC903856

Connectors: C-30, C-113 <LHD>

BJ

C-30

C-30

C-113

Harness side

C-113

AC903868

Harness side

BY

Connector: C-113 <RHD>

AC903957AB

Connector: F-09

Harness side

<Vehicles without
rear body>

AC903865

Connector: C-30 <RHD>

AN

COMBINATION METER

CHASSIS ELECTRICAL

54A-60

YES :

Go to Step 4.

NO :

Repair or replace the damaged
component(s). Then go to Step 4.

STEP 4. Retest the system.

Q: Is the fuel gauge normal?

YES :

The procedure is complete. (If no

malfunctions are found in all steps, an
intermittent malfunction is suspected. Refer
to GROUP 00 / How to Cope with
Intermittent Malfunction ).

NO :

Go to Step 5.

STEP 5. Check the wiring harness between fuel
gauge unit connector F-09 (terminal 2) and earth.
Check the earth wires for open circuit.

Q: Is the wiring harness between fuel gauge unit

connector F-09 (terminal 2) and earth in good
condition?

YES :

Go to Step 6.

NO :

Repair or replace the damaged
component(s).

STEP 6. Retest the system.

Q: Is the fuel gauge normal?

YES :

The procedure is complete. (If no

malfunctions are found in all steps, an
intermittent malfunction is suspected. Refer
to GROUP 00 / How to Cope with
Intermittent Malfunction ).

NO :

Carry out the troubleshooting again.

STEP 7. Check the fuel gauge unit.
Refer to

P.54A-88

.

Q: Is the fuel gauge normal?

YES :

Go to Step 8.

NO :

Replace the fuel gauge unit.

STEP 8. Retest the system.

Q: Is the fuel gauge normal?

YES :

The procedure is complete. (If no

malfunctions are found in all steps, an
intermittent malfunction is suspected. Refer
to GROUP 00 / How to Cope with
Intermittent Malfunction ).

NO :

Replace combination meter.

AC903957AB

Connector: F-09

Harness side

<Vehicles without
rear body>

COMBINATION METER

CHASSIS ELECTRICAL

54A-61

Inspection Procedure 8: Engine coolant temperature gauge does not work (Other meters work).

COMMENTS ON TROUBLE SYMPTOM
If only the engine coolant temperature gauge does
not operate, the engine ECU system, the combina-
tion meter, the wiring harness or its connector may
be defective.

PROBABLE CAUSES

• Damaged harness wires and connectors

• Malfunction of the engine coolant temperature

gauge unit

• Malfunction of combination meter

DIAGNOSIS PROCEDURE

STEP 1. Check the engine coolant temperature
gauge circuit.

(1) Disconnect the A-108 engine coolant

temperature gauge unit connector.

(2) Connect a test lamp (12 V

− 3.4 W to 12 V − 7.0

W) to the wiring harness side connector.

(3) Ignition switch: ON

Q: Does the test lamp illuminate?

YES :

Go to Step 5.

NO :

Go to Step 2.

Engine Coolant Temperature Gauge Circuit

ENGINE COOLANT
TEMPERATURE
GAUGE UNIT

COMBINATION
METER

T/GA

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

NOTE

: LHD
: RHD

AC903898

AC

Connector: A-108

Harness side

A-108 (B)

AC503028AC

Connector

Earth

Test lamp
(12 V 3.4 W - 7.0 W)

Engine coolant
temperature gauge unit

COMBINATION METER

CHASSIS ELECTRICAL

54A-62

STEP 2. Connector check: Combination meter
connector C-113 and engine coolant temperature
gauge unit connector A-108.

Q: Is combination meter connector C-113 and engine

coolant temperature gauge unit connector A-108 in
good condition?

YES :

Go to Step 3.

NO :

Repair or replace the damage
component(s).

STEP 3. Retest the system.

Q: Is the engine coolant temperature gauge normal?

YES :

The procedure is complete. (If no

malfunctions are found in all steps, an
intermittent malfunction is suspected. Refer
to GROUP 00 / How to Cope with
Intermittent Malfunction ).

NO :

Go to Step 4.

AC903898

AC

Connector: A-108

Harness side

A-108 (B)

AC903856

Harness side

BH

Connector: C-113 <LHD>

AC903868

Harness side

BY

Connector: C-113 <RHD>