Mitsubishi 380. Manual - part 884

COMBINATION METER ASSEMBLY

CHASSIS ELECTRICAL

54A-70

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1:Communication With Diagnostic Tool is Not Possible.

.

CIRCUIT OPERATION

The combination meter is linked to the data link con-
nector via CAN bus line to communicate with the 
diagnostic tool. 

.

TECHNICAL DESCRIPTION (COMMENT)

If the system does not communicate with diagnostic 
tool, power supply to data link connector or CAN bus 
lines may be defective.

.

TROUBLESHOOTING HINTS

• Refer to circuit diagrams GROUP-

90

• Refer to configuration diagrams GROUP-

80

• The wiring harness or connectors may have 

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector.

16DB402A

A-02 (GR)

CONNECTOR: A-02 

A-02 HARNESS CONNECTOR:

16DB407A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER

A/T

CONTROL

UNIT

COMBINATION METER ASSEMBLY

CHASSIS ELECTRICAL

54A-71

DIAGNOSIS

Required Special Tools:

• MB991958: Diagnostic Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A (Vehicles with CAN 

communication system)

STEP 1. Check that the Engine ECU communicates with 
the diagnostic tooI.
(1) Connect diagnostic tool MB991958 to the data link 

connector.

(2) Turn the ignition switch to "ON" position.
(3) Check if diagnostic tool MB991958 can communicate with 

the Engine ECU.

Q: Is the check result satisfactory?

YES : Go to Step 2.
NO :  Refer to GROUP 13A, MPI Diagnosis 

− Diagnostic 

Trouble Code Chart 

P.13A-17

.

STEP 2. Using diagnostic tool MB991958, diagnose the 
CAN bus line
Use diagnostic tool MB991958 to diagnose the CAN bus lines.

Q: Is the check result satisfactory?

YES : Diagnose the power supply circuit. Refer to 

P.54A-72

.

NO :  Repair the CAN bus lines (Refer to GROUP 54C, 

Diagnosis 

− Can Bus Diagnostic Chart 

P.54C-15

).

00DB076A

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

COMBINATION METER ASSEMBLY

CHASSIS ELECTRICAL

54A-72

INSPECTION PROCEDURE 2: Power Supply Circuit. INSPECTION PROCEDURE 3: Odometer and trip 
meter are not displayed. INSPECTION PROCEDURE 4: All the needle meters do not work. 
INSPECTION PROCEDURE 5: When the ignition switch is turned to the ON position, the indicator and 
warning lights do not illuminate.

.

CIRCUIT OPERATION

The combination meter is energized by the battery 
through ignition switch (IG1).

.

TECHNICAL DESCRIPTION (COMMENT)

If the odometer and trip meter are not displayed or all 
meter needles don't move, power supply and ground 
system to the combination meter, or the combination 
meter itself may be defective.

.

Possible causes

• Refer to circuit diagrams GROUP-

90

• Refer to configuration diagrams GROUP-

80

• The wiring harness or connectors may have 

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector

• Malfunction of the combination meter

DIAGNOSIS

Required Special Tool:

• MB991223: Harness set

STEP 1. Check combination meter connector C-101 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is combination meter connector C-101 in good 

condition?
YES : Go to Step 2.
NO :  Repair or replace the component(s). Refer to GROUP 

00E, Harness Connector Inspection 

P.00E-2

. The 

combination meter works normally.

54DB019A

CONNECTOR: C-101

HARNESS SIDE

COMBINATION METER ASSEMBLY

CHASSIS ELECTRICAL

54A-73

STEP 2. Measure at combination meter connector C-101 in 
order to power supply circuit to combination meter 
(battery power supply).
(1) Disconnect combination meter connector C-101, and 

measure at the wiring harness side.

(2) Turn the ignition switch to "LOCK" (OFF) position.

(3) Measure the voltage between terminal 1 and ground. 

• The voltage should measure approximately 12 volts 

(battery positive voltage).

Q: Is the measured voltage approximately 12 volts (battery 

positive voltage)?
YES : Go to Step 4.
NO :  Go to Step 3.

STEP 3. Check the wiring harness between combination 
meter connector C-101 (terminal 1) and the fuse No.22.

NOTE: Also check intermediate connector C-29 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector C-29 is damaged, repair or 
replace. Refer to GROUP 00E, Harness Connector Inspection 

P.00E-2

. 

Q: Is the wiring harness between combination meter 

connector C-101 (terminal 1) and the fuse No.22 in good 
condition?
YES : Retest the system.
NO :  Repair the wiring harness. Check that the 

combination meter is normally.

54DB019A

CONNECTOR: C-101

HARNESS SIDE

AC209365

CONNECTOR C-101 
(HARNESS SIDE)

HT