Mitsubishi Evolution X. Manual - part 341

 

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Mitsubishi Evolution X. Manual - part 341

 

 

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

TSB Revision

MANUAL TRANSAXLE

22A-13

C161F

AWC actuator protection 1

This is the code that is 
set when the control is 
suspended to protect 
AWC actuator, and not a 
malfunction.

C1620

AYC control system (abnormal)

Refer to GROUP 27 

− 

Troubleshooting 

P.27-8

.

C1621

AWC actuator protection 2

This is the code that is 
set when the control is 
suspended to protect 
AWC actuator, and not a 
malfunction.

C1622

ACD control system (abnormal)

P.22A-61

C1623

Brake control system (abnormal)

P.22A-62

C1624

AWC-ECU system (internal error)

P.22A-63

C1625

AWC pressure sensor system (power supply voltage abnormality)

P.22A-64

C2100

Battery voltage malfunction (low voltage)

P.22A-66

C2101

Battery voltage malfunction (high voltage)

P.22A-70

C2114

G and yaw rate sensor power supply (low voltage)

P.22A-72

C2115

G and yaw rate sensor power supply (high voltage)

P.22A-75

C2203

VIN not recorded

P.22A-77

C2204

G and yaw rate sensor system (internal error)

P.22A-78

C2205

Steering wheel sensor system (internal error)

P.22A-79

U0001

Bus-off

P.22A-80

U0100

Engine time-out error

P.22A-81

U0101

TC-SST time-out error

P.22A-82

U0121

ASC time-out error

P.22A-83

U0126

Steering wheel sensor time-out error

P.22A-84

U0141

ETACS time-out error

P.22A-85

U0401

Engine data error

P.22A-86

U0428

Steering wheel sensor data error

P.22A-87

U0431

ETACS data error

P.22A-88

U1003

Bus off (local CAN)

P.22A-90

U1415

Coding incomplete/fail

P.22A-91

U1417

Coding data malfunction

P.22A-93

U1425

TC-SST data error

P.22A-94

U1426

ASC data error

P.22A-95

U1427

Wheel speed sensor data error

P.22A-96

U1428

G and yaw rate sensor data error

P.22A-97

DTC No.

Item

Reference page

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

TSB Revision

MANUAL TRANSAXLE

22A-14

SYMPTOM CHART

M1221007100827

Symptom

Inspection 
procedure 
No.

Reference page

Communication between the scan tool and AWC-ECU 
cannot be established

1

P.22A-99

Mode does not change even when the AWC switch is 
pressed.

2

P.22A-99

<Vehicles with steering 

wheel audio remote control 
switch>

P.22A-102

<Vehicles without 

steering wheel audio remote 
control switch>

AWC-ECU power supply circuit malfunction

3

P.22A-104

AWC control mode display is flashing. (Diagnostic trouble 
code No. C161F or C1621 is set)

This is the symptom that 
AWC-ECU suspends the control 
to protect the actuator during 
severe driving, and not a 
malfunction.
Turn the ignition switch from 
OFF to ON to return to control.

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

TSB Revision

MANUAL TRANSAXLE

22A-15

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC C1000: Stoplight Switch System

ETACS-ECU

STOPLIGHT 
SWITCH

FUSIBLE
LINK

34

JOINT
CONNECTOR (4)

Stoplight switch  system circuit

AC708950

Connectors: C-43, C-47, C-48

AI

C-43 (B)

C-47

C-48

AC708972BH

Connectors: C-304, C-309, C-312

C-304

C-312

ETACS-ECU

C-309 (B)

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

TSB Revision

MANUAL TRANSAXLE

22A-16

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 signals of stoplight switch from 
ETACS-ECU via the CAN bus lines.

.

DTC SET CONDITIONS

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

• The vehicle has run for a long time with the stop 

light switch turned ON.

• With the stoplight switch OFF, the vehicle speed 

is decelerated suddenly.

.

PROBABLE CAUSES

• Incorrect adjustment of stoplight switch position

• Malfunction of stoplight switch

• Stoplight malfunction

• Damaged harness wires and connectors

• Malfunction of the ETACS-ECU

• Malfunction of AWC-ECU

DIAGNOSTIC PROCEDURE

STEP 1. Scan tool CAN bus diagnostics
Using scan tool MB991958, diagnose the CAN bus lines.
Q: Is the check result normal?

YES : Go to Step 3.
NO :  Repair the CAN bus lines. (Refer to GROUP 54C 

− 

Troubleshooting 

P.54C-14

.) After repairing the CAN 

bus line, go to Step 2.

STEP 2. Check whether the DTC is reset.
Q: Is DTC No. C1000 set?

YES : Go to Step 3.
NO :  This diagnosis is complete.

STEP 3. Check of the stoplight on and off
Check that the stoplight illuminates when the brake pedal is 
depressed, and the stoplight goes out when the brake pedal is 
released.
Q: Is the check result normal?

YES : Go to Step 16.
NO :  Go to Step 4.

STEP 4. Stop light switch installation status check
Refer to GROUP 35A 

 On-vehicle Service 

P.35A-12

.

Q: Is the check result normal?

YES : Go to Step 5.
NO :  Install the stop light switch correctly. Then go to Step 

21.

 

 

 

 

 

 

 

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