Mitsubishi Outlander GS45X. Manual - part 1725

 

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Mitsubishi Outlander GS45X. Manual - part 1725

 

 

DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>

TSB Revision

AUTOMATIC TRANSAXLE

23C-205

.

OPERATION

The AWC-ECU monitors the current value of the 
electronic control coupling solenoid (center).

.

DIAGNOSTIC TROUBLE CODE SET 
CONDITIONS

This diagnostic trouble code is set when the abnor-
mality below is detected:

• By the monitored electronic control solenoid (cen-

ter) current, the AWC-ECU judges the undercur-
rent failure.

• By the monitored electronic control solenoid (cen-

ter) current, the AWC-ECU judges the overcur-
rent failure.

• The AWC-ECU judges the monitor circuit failure.

.

PROBABLE CAUSES

• Malfunction of electronic control coupling sole-

noid (center)

• Damaged harness wires and connectors

• Malfunction of AWC-ECU

DIAGNOSTIC PROCEDURE

STEP 1. Electronic control coupling solenoid (center) 
connector, intermediate connector, AWC-ECU connector 
check: D-138, C-138, D-113, C-139
Q: Is the check result normal?

YES : Go to Step 2.
NO :  Repair the defective connector. Then go to Step 6.

STEP 2. Check the wiring harness between D-138 
electronic control coupling solenoid (center) connector 
terminal No.2 and C-139 AWC-ECU connector terminal 
No.2.
Check the power supply line for open or short circuit.
Q: Is the check result normal?

YES : Go to Step 3.
NO :  Repair the wiring harness. Then go to Step 6.

STEP 3. Check the wiring harness between D-138 
electronic control coupling solenoid (center) connector 
terminal No.1 and C-139 AWC-ECU connector terminal 
No.3.
Check the ground line for open or short circuit.
Q: Is the check result normal?

YES : Go to Step 4.
NO :  Repair the wiring harness. Then go to Step 6.

AC901075BL

Connectors: C-138, C-139

C-139

C-138 (GR)

AC901080AQ

Connectors: D-113, D-138

D-113

D-138

DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>

TSB Revision

AUTOMATIC TRANSAXLE

23C-206

STEP 4. Check of the electronic control coupling solenoid 
(center)
Refer to GROUP 27C 

− On-vehicle Service 

P.27C-94

.

Q: Is the check result normal?

YES : Go to Step 5.
NO :  Replace the electronic control coupling (center) 

(Refer to GROUP 27C 

− Electronic Control Coupling 

P.27C-97

). Then go to Step 6.

STEP 5. Check whether the diagnostic trouble code is 
reset.
Q: Is diagnostic trouble code No.C1628 set?

YES : Replace the AWC-ECU. (Refer to 

P.23C-295

). Then 

go to Step 6.

NO :  Intermittent malfunction. (Refer to GROUP 00 

− How 

to Cope with Intermittent Malfunction 

P.00-15

).

STEP 6. Check whether the diagnostic trouble code is 
reset.
Q: Is diagnostic trouble code No.C1628 set?

YES : Return to Step 1.
NO :  This diagnosis is complete.

Code No. C1629: ASC CAN Data (not received)

CAUTION

• If there is any problem in the CAN bus lines, 

an incorrect diagnostic trouble code may be 
set. Prior to this diagnosis, diagnose the CAN 
bus lines.

• Whenever the ECU is replaced, ensure that 

the CAN bus lines are normal.

.

OPERATION

AWC-ECU communicates with the ASC-ECU via the 
CAN bus lines.

.

DIAGNOSTIC TROUBLE CODE SET 
CONDITIONS

This diagnostic trouble code is set when the CAN 
signal of the ASC-ECU cannot be received.

.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• Damaged connectors (ASC-ECU)

• Malfunction of ASC-ECU

• Malfunction of AWC-ECU

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?

YES : Go to Step 2.
NO :  Repair the CAN bus lines. (Refer to GROUP 54C 

− 

Troubleshooting 

P.54C-17

).

DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>

TSB Revision

AUTOMATIC TRANSAXLE

23C-207

STEP 2. M.U.T.-III diagnostic trouble code.
Check the ASC diagnostic trouble code. (Refer to GROUP 35C 
− Troubleshooting 

P.35C-18

).

Q: Is the diagnostic trouble code set?

YES : Perform the relevant troubleshooting.
NO :  Go to Step 3.

STEP 3. Check whether the diagnostic trouble code is 
reset.
Q: Is diagnostic trouble code No.C1629 set?

YES : Replace the AWC-ECU. (Refer to 

P.23C-295

). Then 

go to Step 4.

NO :  Intermittent malfunction. (Refer to GROUP 00 

− How 

to Cope with Intermittent Malfunction 

P.00-15

).

STEP 4. Check whether the diagnostic trouble code is 
reset.
Q: Is diagnostic trouble code No.C1629 set?

YES : Return to Step 1.
NO :  This diagnosis is complete.

Code No. C1630: Steering Wheel Sensor CAN Data (not received)

CAUTION

• If there is any problem in the CAN bus lines, 

an incorrect diagnostic trouble code may be 
set. Prior to this diagnosis, diagnose the CAN 
bus lines.

• Whenever the ECU is replaced, ensure that 

the CAN bus lines are normal.

• When the steering wheel sensor is replaced, 

calibrate the steering wheel sensor (Refer to 
GROUP 35C 

− On-vehicle Service 

P.35C-283

), 

and reset the steering wheel sensor correc-
tion amount stored in the AWC-ECU. (Item No. 
1: SAS adjusted value 

P.23C-256

).

.

OPERATION

AWC-ECU communicates with the steering wheel 
sensor via the CAN bus lines.

.

DIAGNOSTIC TROUBLE CODE SET 
CONDITIONS

This diagnostic trouble code is set when the CAN 
signal of the steering wheel sensor cannot be 
received.

.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• Damaged connectors (steering wheel sensor)

• Malfunction of the steering wheel sensor

• Malfunction of AWC-ECU

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?

YES : Go to Step 2.
NO :  Repair the CAN bus lines. (Refer to GROUP 54C 

− 

Troubleshooting 

P.54C-17

).

DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>

TSB Revision

AUTOMATIC TRANSAXLE

23C-208

STEP 2. M.U.T.-III data list.
Item No.8: Steering angle sensor (refer to 

P.23C-254

).

Q: Is the check result normal?

YES : Intermittent malfunction. (Refer to GROUP 00 

− How 

to Cope with Intermittent Malfunction 

P.00-15

).

NO :  Replace the steering wheel sensor. (Refer to GROUP 

35C 

− Steering Wheel Sensor 

P.35C-291

). Then go to 

Step 3.

STEP 3. Check whether the diagnostic trouble code is 
reset.
Q: Is diagnostic trouble code No.C1630 set?

YES : Replace the AWC-ECU. (Refer to 

P.23C-295

). Then 

go to Step 4.

NO :  Intermittent malfunction. (Refer to GROUP 00 

− How 

to Cope with Intermittent Malfunction 

P.00-15

).

STEP 4. Check whether the diagnostic trouble code is 
reset.
Q: Is diagnostic trouble code No.C1630 set?

YES : Return to Step 1.
NO :  This diagnosis is complete.

Code No. C1631: ETACS CAN Data (not received)

CAUTION

• If there is any problem in the CAN bus lines, 

an incorrect diagnostic trouble code may be 
set. Prior to this diagnosis, diagnose the CAN 
bus lines.

• Whenever the ECU is replaced, ensure that 

the CAN bus lines are normal.

.

OPERATION

AWC-ECU communicates with the ETACS-ECU via 
the CAN bus lines.

.

DIAGNOSTIC TROUBLE CODE SET 
CONDITIONS

This diagnostic trouble code is set when the CAN 
signal of the ETACS-ECU cannot be received.

.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• Damaged connectors (ETACS-ECU)

• ETACS-ECU malfunction

• Malfunction of AWC-ECU

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?

YES : Go to Step 2.
NO :  Repair the CAN bus lines. (Refer to GROUP 54C 

− 

Troubleshooting 

P.54C-17

).

 

 

 

 

 

 

 

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