Mitsubishi Outlander GS45X. Manual - part 456

DIAGNOSIS

TSB Revision

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-251

STEP 6. Resistance measurement at A-02 ASC-ECU 
connector
(1) Removal the fusible link No.27.
(2) Disconnect the ASC-ECU connector, connect special tool 

ASC check harness (MB991997) to the harness-side 
connector, and then measure the resistance at the special 
tool connector side.
NOTE: Do not connect the special tool ASC check harness 
(MB991997) to ASC-ECU.

(3) Measure the resistance between the terminal No.32 and the 

body ground.

OK: No continuity

Q: Is the check result normal?

YES : Replace the fusible link No.27. Then go to Step 20.
NO :  The short circuit may be present in the power supply 

circuit. Repair the wiring harness between the A-02 
ASC-ECU connector terminal No.32 and the fusible 
link No.27, and then replace the fusible link No.27. 
Then go to Step 20.

STEP 7. Voltage measurement at the A-02 ASC-ECU 
connector
(1) Disconnect the ASC-ECU connector, connect special tool 

ASC check harness (MB991997) to the harness-side 
connector, and then measure the voltage at the special tool 
connector side.
NOTE: Do not connect the special tool ASC check harness 
(MB991997) to ASC-ECU.

(2) Measure the voltage between terminal No.1 and body 

ground.

OK: Approximately system voltage

Q: Is the check result normal?

YES : Go to Step 10.
NO :  Go to Step 8.

AC606869 MD

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU
harness connector

AC606869MI

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU
harness connector

AC606869

DIAGNOSIS

TSB Revision

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-252

STEP 8. Check the fusible link No.26.
Q: Is the check result normal?

YES : The open circuit may be present in the power supply 

circuit. Repair the wiring harness between the A-02 
ASC-ECU connector terminal No.1 and the fusible 
link No.26. Then go to Step 20.

NO :  Go to Step 9.

STEP 9. Resistance measurement at A-02 ASC-ECU 
connector
(1) Removal the fusible link No.26.
(2) Disconnect the ASC-ECU connector, connect special tool 

ASC check harness (MB991997) to the harness-side 
connector, and then measure the resistance at the special 
tool connector side.
NOTE: Do not connect the special tool ASC check harness 
(MB991997) to ASC-ECU.

(3) Measure the resistance between the terminal No.1 and the 

body ground.

OK: No continuity

Q: Is the check result normal?

YES : Replace the fusible link No.26. Then go to Step 20.
NO :  The short circuit may be present in the power supply 

circuit. Repair the wiring harness between the A-02 
ASC-ECU connector terminal No.1 and the fusible 
link No.26, and then replace the fusible link No.26. 
Then go to Step 20.

AC606869MG

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU
harness connector

DIAGNOSIS

TSB Revision

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-253

STEP 10. Voltage measurement at the A-02 ASC-ECU 
connector
(1) Disconnect the ASC-ECU connector, connect special tool 

ASC check harness (MB991997) to the harness-side 
connector, and then measure the voltage at the special tool 
connector side.
NOTE: Do not connect the special tool ASC check harness 
(MB991997) to ASC-ECU.

(2) Ignition switch: "ON" position.
(3) Measure the voltage between terminal No.8 and body 

ground.

OK: Approximately system voltage

Q: Is the check result normal?

YES : Go to Step 14.
NO :  Go to Step 11.

STEP 11. Check the fuse No.12.
Visually check for open circuit in fuse No.12.
Q: Is the check result normal?

YES : Go to Step 12.
NO :  Go to Step 13.

AC606869MZ

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU
harness connector

DIAGNOSIS

TSB Revision

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-254

STEP 12. Resistance measurement at A-02 ASC-ECU 
connector
(1) Disconnect the C-317 ETACS-ECU connector.
(2) Disconnect the A-02 ASC-ECU connector, connect special 

tool ASC check harness (MB991997) to the harness-side 
connector, and then measure the resistance at the special 
tool connector side.
NOTE: Do not connect the special tool ASC check harness 
(MB991997) to ASC-ECU.

(3) Measure the resistance between the A-02 ASC-ECU 

connector terminal No.8 and the C-317 ETACS-ECU 
connector terminal No.5.

OK: Continuity exists (2 

Ω or less)

Q: Is the check result normal?

YES : The trouble can be an intermittent malfunction (Refer 

to GROUP 00 

− How to Use Troubleshooting/How to 

Cope with Intermittent Malfunctions 

P.00-15

).

NO :  The open circuit may be present in the power supply 

circuit. Repair the wiring harness between the A-02 
ASC-ECU connector terminal No.8 and the C-317 
ETACS-ECU connector terminal No.5. Then go to 
Step 20.

STEP 13. Resistance measurement at A-02 ASC-ECU 
connector
(1) Disconnect the C-317 ETACS-ECU connector.
(2) Disconnect the ASC-ECU connector, connect special tool 

ASC check harness (MB991997) to the harness-side 
connector, and then measure the resistance at the special 
tool connector side.
NOTE: Do not connect the special tool ASC check harness 
(MB991997) to ASC-ECU.

(3) Measure the resistance between the terminal No.8 and the 

body ground.

OK: No continuity

Q: Is the check result normal?

YES : Replace the fuse No.12. Then go to Step 20.
NO :  The short circuit may be present in the power supply 

circuit. Repair the wiring harness between the A-02 
ASC-ECU connector terminal No.8 and the C-317 
ETACS-ECU connector terminal No.5, and then 
replace the fuse No.12. Then go to Step 20.

AC606869 ML

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU
harness connector

Connector: C-317
(harness side)

AC606869MJ

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU
harness connector