Mitsubishi L200. Manual - part 672

COMBINATION METER

CHASSIS ELECTRICAL

54A-55

STEP 5. Retest the system.

Q: Is the speedometer 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 the combination meter assembly.

Inspection Procedure 6: Tachometer does not work (Other meters work).

COMMENTS ON TROUBLE SYMPTOM
If only the tachometer does not operate, the engine-
ECU system may not be sending ignition signal, or 
the combination meter, the wiring harness or its con-
nector may be defective.

PROBABLE CAUSES

• Malfunction of combination meter

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III other system diagnosis code
Check whether the DIESEL system-related diagno-
sis code is set.

Q: Is the diagnosis code set?

YES : 

Diagnose DIESEL system. (Refer to 

GROUP 13A, Troubleshooting .) After 
diagnosing the DIESEL system, go to Step 
4.

NO : 

Go to Step 2.

Tachometer Circuit

ENGINE-ECU

COMBINATION 
METER

TACHO

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

COMBINATION METER

CHASSIS ELECTRICAL

54A-56

STEP 2. Connector check: Combination meter 
connector C-112 and engine-ECU connector C-
103.

Q: Is combination meter connector C-112 and engine-

ECU connector C-103 in good condition?

YES : 

Go to Step 3.

NO : 

Repair or replace the damage 
component(s).

STEP 3. Retest the system.

Q:  Is the tachometer normal?

YES : 

Intermittent Malfunction. Refer to GROUP 

00 / How to Cope with Intermittent 
Malfunction ).

NO : 

Go to Step 4.

AC903853

BG

Connector: C-103 <LHD>

C-103 (B)

Harness side

AC903865 AO

Connector: C-103 <RHD>

Harness side

C-103 (B)

AC903856 BF

Connector: C-112 <LHD>

Harness side 

AC903868

BW

Connector: C-112 <RHD>

Harness side 

COMBINATION METER

CHASSIS ELECTRICAL

54A-57

STEP 4. Check the wiring harness between 
combination meter connector C-112 (terminal 34) 
and engine-ECU connector C-103 (terminal 91).

Check the input lines for open circuit and short cir-
cuit.
NOTE: Prior to the wiring harness inspection, check 
intermediate connector C-52 <LHD> or C-34 
<RHD>, and repair if necessary.

Q: Is the wiring harness between combination meter 

connector C-112 (terminal 34) and engine-ECU 
connector C-103 (terminal 91) in good condition?
YES : 

Replace the combination meter assembly.

NO : 

Repair or replace the damage 
component(s).

AC903853

BH

Connectors: C-52, C-103 <LHD>

C-52

C-52

C-103 (B)

Harness side

C-103

AC903865

Connectors: C-34, C-103 <RHD>

AP

C-34

C-103 (B)

C-103 Harness side

C-34

AC903856 BF

Connector: C-112 <LHD>

Harness side 

AC903868

BW

Connector: C-112 <RHD>

Harness side 

COMBINATION METER

CHASSIS ELECTRICAL

54A-58

Inspection Procedure 7: Fuel gauge does not work (Other meters work). 

COMMENTS ON TROUBLE SYMPTOM
If only the fuel gauge does not operate, the fuel 
gauge unit, the combination meter, wiring harness or 
connector(s) may be defective.

PROBABLE CAUSES

• Damaged harness wires and connectors

• Malfunction of the fuel gauge unit

• Malfunction of combination meter

DIAGNOSIS PROCEDURE

STEP 1. Check the fuel gauge circuit.

(1) Disconnect F-09 fuel gauge unit connector.

(2) Connect a test lamp (12 V 

− 3.4 W) via special 

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

Fuel Gauge Unit Circuit

FUEL
GAUGE
UNIT

COMBINATION 
METER

F/GA

AC903957AB

Connector: F-09

Harness side

<Vehicles without 
rear body>

AC503027

Test lamp
(12 V - 3.4 W)

Harness side

AB