Mitsubishi Galant (2004+). Manual - part 223

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-83

STEP 4. Check the ground circuit to the ETACS-ECU. 
Measure the resistance at ETACS-ECU connector C-219.

(1) Disconnect ETACS-ECU connector C-219 and measure the 

resistance available at the junction block side of the 
connector.

(2) Measure the resistance value between terminal 3 and 

ground.

• The resistance should be 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 6.
NO :  Go to Step 5.

STEP 5. Check the wiring harness between ETACS-ECU 
connector C-218 (terminal 56), C-219 (terminal 3) and 

ground.

AC305413 AG

CONNECTOR: C-219

JUNCTION BLOCK SIDE

JUNCTION BLOCK

(REAR VIEW)

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AC209857AB

CONNECTOR C-219
(JUNCTION BLOCK SIDE)

AC305414

CONNECTORS: C-218, C-219

JUNCTION BLOCK
(REAR VIEW)

C-219

C-218 (GR)

HARNESS SIDE

C-218

C-219

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JUNCTION BLOCK SIDE

AC

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-84

NOTE: Also check junction block connector C-211 for loose, 
corroded, or damaged terminals, or terminals pushed back in 
the connector. If junction block connector C-211 is damaged, 
repair or replace the damaged component(s) as described in 
GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between ETACS-ECU connector 

C-218 (terminal 56), C-219 (terminal 3) and ground in 
good condition?
YES : No action is necessary and testing is complete.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. The system 
should communicate with the ETACS-ECU normally.

STEP 6. Check column switch connector C-309 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.

Q: Is column switch connector C-309 in good condition?

YES : Go to Step 7.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. The system should communicate with the 

ETACS-ECU normally.

AC305415AH

CONNECTOR: C-211

C-211

HARNESS SIDE

JUNCTION BLOCK

(FRONT VIEW)

AC305235

HARNESS SIDE

CONNECTOR: C-309

AE

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-85

STEP 7. Check the wiring harness between column switch 
connector C-309 (terminal 2) and ETACS-ECU connector 
C-218 (terminal 68).

Q: Is the wiring harness between column switch connector 

C-309 (terminal 2) and ETACS-ECU connector C-218 
(terminal 68) in good condition?
YES : Go to Step 8.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. The system 
should communicate with the ETACS-ECU normally.

STEP 8. Check the wiring harness between column switch 
connector C-309 (terminal 3) and ETACS-ECU connector 

C-218 (terminal 59).

AC305413AN

CONNECTOR: C-218

JUNCTION BLOCK
(REAR VIEW)

C-218 (GR)

HARNESS SIDE

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AC305235

HARNESS SIDE

CONNECTOR: C-309

AE

AC305413AN

CONNECTOR: C-218

JUNCTION BLOCK
(REAR VIEW)

C-218 (GR)

HARNESS SIDE

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AC305235

HARNESS SIDE

CONNECTOR: C-309

AE

SYMPTOM PROCEDURES

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-86

NOTE: Also check joint connector C-03 for loose, corroded, or 
damaged terminals, or terminals pushed back in the connector. 
If joint connector C-03 is damaged, repair or replace the dam-
aged component(s) as described in GROUP 00E, Harness 
Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between column switch connector 

C-309 (terminal 3) and ETACS-ECU connector C-218 
(terminal 59) in good condition?
YES : Replace the ETACS-ECU. The system should 

communicate with the ETACS-ECU normally.

NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. The system 
should communicate with the ETACS-ECU normally.

AC305231BP

CONNECTOR: C-03