Mitsubishi Galant (2004+). Manual - part 1458

 

  Index      Mitsubishi     Mitsubishi Galant - service repair manual 2004 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  1456  1457  1458  1459   ..

 

 

Mitsubishi Galant (2004+). Manual - part 1458

 

 

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54A-75

DTC U1206: Flag invalid

CAUTION

If DTC U1206 is set in the combination meter, 
diagnose the CAN main bus line.

.

CIRCUIT OPERATION
 Refer to 

P.54A-57

.

.

TROUBLE JUDGMENT
When the ignition switch is in the LOCK (OFF) posi-
tion, the combination meter receives door-open sig-
nal or communication standby instruction from the 
ETACS-ECU and keeps CAN communication. If 
there is a contradiction between these two signals, 
DTC U1206 will be set.

.

COMMENTS ON TROUBLE SYMPTOM

Current trouble

• The door switch system of the ETACS-ECU, the 

ETACS-ECU, or the combination meter may be 
defective.

Past trouble

• Carry out diagnosis with particular emphasis on 

connector(s) or wiring harness between the 
ETACS-ECU and the door switch, and the power 
supply system to the ETACS-ECU. For diagnosis 
procedures, refer to "How to cope with past trou-
ble" (Refer to GROUP 00, How to Use Trouble-
shooting/Inspection Service Points 

P.00-6

).

.

Possible causes

• The wiring harness or connectors may have 

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

• Malfunction of ETACS-ECU

• Malfunction of combination meter

DIAGNOSIS

Required Special Tools:

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

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

• MB991827: MUT-III USB Cable

• MB991911: MUT-III Main Harness A (Vehicles with CAN 

communication system)

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54A-76

STEP 1. Using scan tool MB991958, diagnose the CAN bus 
line.
Use scan tool MB991958 to diagnose the CAN bus lines.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to "ON" position.
(3) Diagnose the CAN bus line.
Q: Is the check result satisfactory?

YES : Go to Step 2.
NO :  Repair the CAN bus lines (Refer to GROUP 54C, 

Diagnosis-Can Bus Diagnostic Chart 

P.54C-14

). On 

completion, go to Step 4.

STEP 2. Using scan tool MB991958, read the ETACS-ECU 
diagnostic trouble code.
Check that the ETACS-ECU sets a DTC.
Q: Is the DTC set?

YES : Diagnose the SWS system by referring to 

P.54B-27

.

NO :  Go to Step 3.

STEP 3. Replace the ETACS-ECU and then recheck the 
DTC.
Replace the ETACS-ECU, and then check that the DTC is not 
reset.
Q: Is the check result satisfactory?

YES : Go to Step 4.
NO :  Replace combination meter and then go to step 4.

STEP 4. Recheck for diagnostic trouble code.
Recheck if the DTC is set.

1. Erase the DTC.
2. Turn the ignition switch to "ON" position.
3. Check if the DTC is set.

Q: Is the check result satisfactory?

YES : The procedure is complete.
NO :  Go to Step 1.

AC305412

AB

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54A-77

SYMPTOM CHART

M1543007201116

CAUTION

During diagnosis, a DTC code associated with 
other system may be set when the ignition switch 
is turned on with connector(s) disconnected. On 
completion, confirm all systems for DTC code(s). 
If DTC code(s) are set, erase them all.

SYMPTOM

INSPECTION 
PROCEDURE

REFERENCE PAGE

Communication with scan tool is not possible.

1

P.54A-78

Power supply circuit.

2

P.54A-81

Odometer and trip meter are not displayed.

3

All the needle meters do not work.

4

When the ignition switch is turned to the ON position, the 
indicator and warning lights do not illuminate.

5

Speedometer does not work.

6

P.54A-87

The fuel gauge needle moves excessively.

7

Tachometer does not work.

8

P.54A-91

Fuel Gauge does not work (other meters work).

9

P.54A-94

Engine coolant temperature gauge does not work (other meters 
work).

10

P.54A-101

COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR

TSB Revision

CHASSIS ELECTRICAL

54A-78

SYMPTOM PROCEDURES

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

WITHOUT ELECTRONIC 
BRAKE-FORCE 
DISTRIBUTION (EBD) 
AND ANTI-LOCK 
BRAKING SYSTEM 
(ABS)

WITHOUT ELECTRONIC 
BRAKE-FORCE 
DISTRIBUTION (EBD) 
AND ANTI-LOCK 
BRAKING SYSTEM 
(ABS)

WITH ELECTRONIC 
BRAKE-FORCE 
DISTRIBUTION (EBD) 
AND ANTI-LOCK 
BRAKING SYSTEM 
(ABS)

WITH ELECTRONIC 
BRAKE-FORCE 
DISTRIBUTION (EBD) 
AND ANTI-LOCK 
BRAKING SYSTEM 
(ABS)

ABS-ECU OR ABS/TCL-ECU

JOINT 
CONNECTOR (3)

POWERTRAIN 
CONTROL 
MODULE

COMBINATION 
METER

CPU

DATA LINK CONNECTOR

Combinaton Meter CAN-BUS Line Circuit

 

 

 

 

 

 

 

Content   ..  1456  1457  1458  1459   ..