Mitsubishi Outlander GS45X. Manual - part 1715

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

TSB Revision

AUTOMATIC TRANSAXLE

23C-165

SYMPTOM CHART

M1231008000705

C1633

A/T CAN data (not received)

P.23C-210

C2100

Battery voltage malfunction (low voltage)

P.23C-212

C2101

Battery voltage malfunction (high voltage)

P.23C-218

C2203

Chassis No. not recorded

P.23C-221

C2205

Steering wheel sensor system (internal error)

P.23C-222

U0001

Bus-off

P.23C-223

U0100

Engine time-out error

P.23C-224

U0101

Transaxle time-out error

P.23C-225

U0121

ASC time-out error

P.23C-226

U0126

Steering wheel sensor time-out error

P.23C-227

U0141

ETACS time-out error

P.23C-228

U0401

Engine data malfunction

P.23C-229

U0428

Steering wheel sensor data malfunction

P.23C-231

U0431

ETACS data malfunction

P.23C-232

U1415

Coding incomplete/fail

P.23C-233

U1417

Coding data malfunction

P.23C-234

U1425

Transaxle data malfunction

P.23C-236

U1427

Wheel speed sensor data malfunction

P.23C-237

U1428

G and yaw rate sensor data malfunction

P.23C-238

Diagnostic 
trouble 
code No.

Item

Reference 
page

Trouble symptom

Inspection 
procedure 
No.

Reference page

Communication between the M.U.T.-III and AWC-ECU 
cannot be established

1

P.23C-240

The power supply circuit system has failure

2

P.23C-241

Shifting the S-AWC control mode selector does not 
change the mode

3

P.23C-248

The tight corner braking phenomenon (difficult to turn) 
appears frequently with the S-AWC control mode selector 
in the NORMAL or SNOW mode

4

P.23C-251

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

TSB Revision

AUTOMATIC TRANSAXLE

23C-166

DIAGNOSTIC TROUBLE CODE PROCEDURES

Code No.C100A <FL>, C1015 <FR>, C1020 <RL>, C102B <RR>: Wheel Speed Sensor System (Faulty 
Circuit)

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 receives the wheel speed data from 
ASC-ECU via the CAN communication.

.

DIAGNOSTIC TROUBLE CODE SET 
CONDITIONS

Observe the wheel speed at startup. If one or more 
of the wheel speed does not follow, the diagnostic 
trouble code of the relevant wheel speed sensor is 
set.

.

PROBABLE CAUSES

• Malfunction of wheel speed sensor

• Damaged harness wires and connectors

• Malfunction of encoder for wheel speed detection

• 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 3.
NO :  Repair the CAN bus lines (Refer to GROUP 54C 

− 

Troubleshooting 

P.54C-17

). After repairing the CAN 

bus line, go to Step 2.

STEP 2. Check whether the diagnostic trouble code is 
reset.
Q: Is the relevant wheel speed sensor diagnostic trouble 

code No.C100A <FL>, C1015 <FR>, C1020 <RL>, or 
C102B <RR> set?
YES : Go to Step 3.
NO :  This diagnosis is complete.

STEP 3. 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 4.

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

TSB Revision

AUTOMATIC TRANSAXLE

23C-167

STEP 4. M.U.T.-III data list.
Check the data list of the relevant wheel speed sensor. (Refer 
to 

P.23C-254

).

• Item No.21: Wheel speed sensor <FL>

• Item No.22: Wheel speed sensor <FR>

• Item No.23: Wheel speed sensor <RL>

• Item No.24: Wheel speed sensor <RR>

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 AWC-ECU. (Refer to 

P.23C-295

).

Code No.C1011 <FL>, C101C <FR>, C1027 <RL>, C1032 <RR>: Wheel Speed Sensor System (Faulty 
Signal)

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 receives the wheel speed data from 
ASC-ECU via the CAN communication.

.

DIAGNOSTIC TROUBLE CODE SET 
CONDITIONS

When an irregular change in the wheel speed sensor 
is detected, the diagnostic trouble code of the rele-
vant wheel speed sensor is set.

.

PROBABLE CAUSES

• Malfunction of wheel speed sensor

• Damaged harness wires and connectors

• Malfunction of encoder for wheel speed detection

• 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 3.
NO :  Repair the CAN bus lines. (Refer to GROUP 54C 

− 

Troubleshooting 

P.54C-17

). After repairing the CAN 

bus line, go to Step 2.

STEP 2. Check whether the diagnostic trouble code is 
reset.
Q: Is the relevant wheel speed sensor diagnostic trouble 

code No.C1011 <FL>, C101C <FR>, C1027 <RL>, or 
C1032 <RR> set?
YES : Go to Step 3.
NO :  This diagnosis is complete.

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

TSB Revision

AUTOMATIC TRANSAXLE

23C-168

STEP 3. 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 4.

STEP 4. M.U.T.-III data list.
Check the data list of the relevant wheel speed sensor. (Refer 
to 

P.23C-254

).

• Item No.21: Wheel speed sensor <FL>

• Item No.22: Wheel speed sensor <FR>

• Item No.23: Wheel speed sensor <RL>

• Item No.24: Wheel speed sensor <RR>

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 AWC-ECU. (Refer to 

P.23C-295

).

Code No.C1014 <FL>, C101F <FR>, C102A <RL>, C1035 <RR>: Wheel Speed Sensor System 
(characteristics abnormality)

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 receives the wheel speed data from 
ASC-ECU via the CAN communication.

.

DIAGNOSTIC TROUBLE CODE SET 
CONDITIONS

If one or more of the wheel speed is out of the range 
of the specified value, the diagnostic trouble code of 
the relevant wheel speed sensor is set.

.

PROBABLE CAUSES

• Malfunction of wheel speed sensor

• Damaged harness wires and connectors

• Malfunction of encoder for wheel speed detection

• 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 3.
NO :  Repair the CAN bus lines. (Refer to GROUP 54C 

− 

Troubleshooting 

P.54C-17

). After repairing the CAN 

bus line, go to Step 2.