Mitsubishi Galant (2004+). Manual - part 496

DIAGNOSIS

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CONTROLLER AREA NETWORK (CAN)

54C-595

(4) Measure the resistance between joint connector (3) 

terminal 5 and ETACS-ECU connector terminal 72.

OK: 2 ohms or less

(5) Measure the resistance between joint connector (3) 

terminal 16 and ETACS-ECU connector terminal 73.

OK: 2 ohms or less

CAUTION

Strictly observe the specified wiring harness repair proce-
dure. For details refer to 

P.54C-5

.

Q: Do all the resistances measure 2 ohms or less?

YES : If all the resistances measure 2 ohms or less, power 

supply to the ETACS-ECU may be suspected. 
Diagnose the SWS. Refer to GROUP 54B, Symptom 
procedures 

P.54B-79

.

NO :  If either of the resistances measures more than 2 

ohms or all the resistances measure more than 2 
ohms, repair the wiring harness between joint 
connector (3) and the ETACS-ECU connector. 

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TEST 
HARNESS

CN

TEST 
HARNESS

HARNESS SIDE: C-02

HARNESS SIDE: C-218

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TEST 
HARNESS

CL

HARNESS SIDE: C-02

HARNESS SIDE: C-218

TEST 
HARNESS

DIAGNOSIS

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CONTROLLER AREA NETWORK (CAN)

54C-596

DIAGNOSTIC ITEM 21: Diagnose the lines between CAN main bus line and the multi-center display 
(middle-grade type)

CAUTION

When servicing a CAN bus line, ground yourself 
by touching a metal object such as an unpainted 
water pipe. If you fail to do so, a component con-
nected to the CAN bus line may be damaged.

JOINT
CONNECTOR (3)

COMBINATION
METER

POWERTRAIN
CONTROL MODULE

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

MULTI CENTER 
DISPLAY UNIT

DIAGNOSIS

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CONTROLLER AREA NETWORK (CAN)

54C-597

.

JOINT
CONNECTOR (3)

COMBINATION
METER

POWERTRAIN
CONTROL MODULE

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

MULTI CENTER 
DISPLAY UNIT

ABS-ECU

AC305231BD

CONNECTOR: C-02

AC305233 AL

CONNECTOR: C-05

C-05 (B)

DIAGNOSIS

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CONTROLLER AREA NETWORK (CAN)

54C-598

TROUBLE JUDGMENT
If the MUT-III cannot received signals from the 
multi-center display unit (middle-grade type), CAN 
bus line connector(s) are broken or an open circuit 
has occurred.

.

COMMENTS ON TROUBLE SYMPTOM
The wiring harness wire or connectors may have 
loose, corroded, or damage terminals, or terminals 
pushed back in the connector, or multi-center display 
unit (middle-grade type) may be defective.

.

TROUBLESHOOTING HINTS

• The wiring harness or connectors may have 

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

• The multi-center display unit (middle-grade type) 

may be defective

DIAGNOSIS

Required Special Tool:

• MB991223: Harness Set

STEP 1. Check joint connector (3) C-02 and multi-center 
display unit (middle-grade type) connector C-05 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.

CAUTION

The strand end of the twisted wire should be within 10 cm 
(4 inches) from the connector. For details refer to 

P.54C-4

.

Check the joint connector at the wiring harness side for loose, 
corroded or damaged terminals, or terminals pushed back in 
the connector, and also check the short pin behind the connec-
tor for corrosion, deformation and delamination.
Q: Are joint connector (3) C-02 and multi-center display 

unit (middle-grade type) connector C-05 in good 
condition?
YES : Go to Step 2.
NO :  Repair the damaged parts. Replace the joint 

connector as necessary.

AC305231AP

CONNECTOR: C-02

AC305233 AF

CONNECTOR: C-05

HARNESS SIDE

C-05 (B)

AC209350

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AB

SHORT PIN