Mitsubishi Outlander GS45X. Manual — part 457

DIAGNOSIS

TSB Revision

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-255

STEP 14. 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.2 and body

ground.

OK: Approximately system voltage

Q: Is the check result normal?

YES : Go to Step 18.
NO : Go to Step 15.

STEP 15. Check the fuse No.17.
Visually check for open circuit in fuse No.17.
Q: Is the check result normal?

YES : Go to Step 16.
NO : Go to Step 17.

AC606869NB

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU
harness connector

DIAGNOSIS

TSB Revision

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-256

STEP 16. Resistance measurement at A-02 ASC-ECU
connector
(1) Disconnect the C-315 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.2 and the C-315 ETACS-ECU
connector terminal No.4.

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.2 and the C-315
ETACS-ECU connector terminal No.4. Then go to
Step 20.

STEP 17. Resistance measurement at A-02 ASC-ECU
connector
(1) Disconnect the C-315 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.2 and the

body ground.

OK: No continuity

Q: Is the check result normal?

YES : Replace the fuse No.17. 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.2 and the C-315
ETACS-ECU connector terminal No.4, and then
replace the fuse No.17. Then go to Step 20.

AC606869MM

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU
harness connector

Connector: C-315
(harness side)

AC606869 MK

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU
harness connector

DIAGNOSIS

TSB Revision

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-257

STEP 18. Resistance 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 resistance at the special
tool connector side.
NOTE: Do not connect the special tool ASC check harness
(MB991997) to ASC-ECU.

(2) Measure the resistance between terminal No.16 and body

ground, and between terminal No.47 and body ground.

OK: Continuity exists (2

Ω or less)

Q: Is the check result normal?

YES : Go to Step 19.
NO : An open circuit may be present in the ground circuit.

Repair the wiring harness between the A-02
ASC-ECU connector terminal No.16 and the body
ground, and between the A-02 ASC-ECU connector
terminal No.47 and the body ground.

STEP 19. Retest the system.
Make sure that the scan tool cable is properly connected and
the V.C.I. switch is "ON".
Q: Is the communication with scan tool possible?

YES : Intermittent malfunction (Refer to GROUP 00

− How

to Use Troubleshooting/How to Cope with Intermittent
Malfunctions

P.00-15

).

NO : Replace the hydraulic unit (integrated with ASC-ECU)

(Refer to

P.35C-287

). Then go to Step 20.

STEP 20. Retest the system.
Q: Is the communication with scan tool possible?

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

AC606869MN

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU
harness connector

DIAGNOSIS

TSB Revision

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-258

Inspection Procedure 14: Steering wheel sensor power supply circuit system

Steering Wheel Sensor Power Supply Circuit

STEERING
WHEEL SENSOR

IG1
RELAY

FUSIBLE
LINK

34

ETACS-
ECU

AC900844AV

Connector: C-209

AC702828AG

C-309 (B)

C-317

Connectors: C-309, C-317