Mitsubishi Galant 9G. Manual - part 1588

MULTI-CENTER DISPLAY

TSB Revision

CHASSIS ELECTRICAL

54A-224

DIAGNOSTIC TROUBLE CODE CHART

M1545001100039

NOTE: 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.

DTC NO.

DIAGNOSTIC ITEM

REFERENCE PAGE

010

Bus off

P.54A-225

011

Powertrain control module time-out (related to engine)

P.54A-228

012

powertrain control module time-out (related to A/T)

013

A/C-ECU time-out

P.54A-232

014

Combination meter time-out

P.54A-236

019

ETACS-ECU time-out

P.54A-239

020

Failures information on powertrain control module (related to 
engine)

P.54A-243

021

Failures information on combination meter

P.54A-246

022

Failures information on A/C-ECU

P.54A-248

MULTI-CENTER DISPLAY

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CHASSIS ELECTRICAL

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DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC 010: Buss Off

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

MULTI-CENTER DISPLAY UNIT

DATA LINK CONNECTOR

CPU

Multi-Center Display (Middle Grade Type) CAN-BUS Line Circuit

MULTI-CENTER DISPLAY

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CHASSIS ELECTRICAL

54A-226

CAUTION

If DTC 010 is set in the multi-center display, 
always diagnose the CAN bus lines.

CAUTION

Whenever the ECU is replaced, ensure that the 
communication circuit is normal.

.

CIRCUIT OPERATION

The multi-center display unit (middle grade type) is 
linked to CAN communication lines to communicate 
with the combination meter and the powertrain con-
trol module, both of which have a terminator resistor.

.

DTC SET CONDITION

If the multi-center display ceases communicating 
once (i.e. bus off) and then returns to it, the 
multi-center display will not communicate for three 
minutes immediately after that point. This 
three-minute period is called "Penalty mode." Imme-
diately after the multi-center display returns to com-
munication, the DTC is set.

.

TECHNICAL DESCRIPTION (COMMENT)

The CAN bus line wiring harness, connector(s), or 
the multi-center display unit (middle grade type) may 
be defective.

.

TROUBLESHOOTING HINTS

• The wiring harness or connectors may have 

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

• Malfunction of multi-center display unit (middle 

grade type)

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)

AC305206

CONNECTOR: A-02

AO

A-02 (GR)

AC305216

B-19 (B)

CONNECTOR: B-19

AD

AC305233

C-05 (B)

CP

CONNECTOR: C-05

AC305231

C-02

C-29

C-101

C-125 (B)

DC

CONNECTORS: C-02, C-29, C-101, C-125

MULTI-CENTER DISPLAY

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CHASSIS ELECTRICAL

54A-227

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 3.

STEP 2. 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 : Intermittent malfunction is suspected. Refer to 

GROUP 00, How to Use Troubleshooting/Inspection 
Service Points - How to Cope with Intermittent 
Malfunction 

P.00-14

.

NO :  Replace combination meter and then go to step 3.

STEP 3. 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