Mitsubishi Lancer Evolution IX. Manual - part 586

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-27

STEP 13. Connectors check: C-06 J/C (3), C-230 
steering wheel sensor connector.

Check for the contact with terminals.

Q: Is the check result normal?

YES : 

Go to Step 14.

NO : 

Repair the defective connector.

STEP 14. Check the harness between steering 
wheel sensor connector C-230 terminal No.3 and 
body earth.

Check the earth line for open circuit.

Q: Is the check result normal?

YES : 

The inspection is complete.

NO : 

Repair the wiring harness.

AC311039

C-06 (GR)

AB

Connector: C-06 <LH drive vehicles>

AC311037

C-06 (GR)

AC

Connector: C-06 <RH drive vehicles>

AC311035

<LH drive vehicles>

Harness side

C-230

AB

Connector: C-230

<RH drive vehicles>

C-230

AC311035

<LH drive vehicles>

Harness side

C-230

AB

Connector: C-230

<RH drive vehicles>

C-230

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-28

STEP 15. Connectors check: C-230 steering 
wheel sensor connector, C-122 intermediate 
connector <LH drive vehicles> or C-138 
intermediate connector <RH drive vehicles>.

Check for the contact with terminals.

Q: Is the check result normal?

YES : 

Go to Step 16.

NO : 

Repair the defective connector.

STEP 16. Check the harness between steering 
wheel sensor connector C-230 (terminal No.5, 4, 
1) and intermediate connector C-122 (terminal 
No.12, 1, 2) <LH drive vehicles> or intermediate 
connector C-138 (terminal No.5, 2, 1) <RH drive 
vehicles>.

Check the output line for short or open circuit.

Q: Is the check result normal?

YES : 

Replace the steering wheel sensor.

NO : 

Repair the wiring harness.

AC311035

<LH drive vehicles>

Harness side

C-230

AB

Connector: C-230

<RH drive vehicles>

C-230

AC311015AC

Connector: C-122 <LH drive vehicles>

C-122

AC311016AB

Connector: C-138 <RH drive vehicles>

C-138

AC311035

<LH drive vehicles>

Harness side

C-230

AB

Connector: C-230

<RH drive vehicles>

C-230

AC311015AC

Connector: C-122 <LH drive vehicles>

C-122

AC311016AB

Connector: C-138 <RH drive vehicles>

C-138

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-29

Code No.32, 33 Steering wheel sensor system <ST-N>

STEERING WHEEL SENSOR SYSTEM 
CIRCUIT

Refer to 

P.22A-20

.

OPERATION

Refer to 

P.22A-20

.

DIAGNOSIS CODE SET CONDITIONS

• Code No.32 is set when the steering wheel sen-

sor ST-N has been detected at the neutral posi-
tion in a state where the steering wheel has been 
determined to have changed above 40

° from 

steering wheel sensor ST-1 and ST-2.

• Code No.33 is set when the steering wheel sen-

sor ST-N has been detected at the neutral posi-
tion in a state where the steering wheel has been 
determined to have changed above 400

° from 

steering wheel sensor ST-1 and ST-2.

PROBABLE CAUSES

• Malfunction of the steering wheel sensor

• Damaged harness wires and connectors

• Malfunction of the 4WD-ECU

DIAGNOSIS

STEP 1. M.U.T.-II/III data list
Item 52: Steering wheel sensor <ST-N> (Refer to 
data list reference table 

P.22A-142

).

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Cope with Intermittent 

Malfunction 

P.00-5

).

NO : 

Go to Step 2.

STEP 2. Measure the voltage at 4WD-ECU 
connector C-26.
(1) Turn the ignition switch to the ON position.

(2) Measure the voltage between 4WD-ECU 

connector C-26 terminal 44 and earth while 
turning the steering wheel.

OK: Approximately 1.5 

⇔ 3.5 V flushing

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Go to Step 5.

AC311002

4WD-ECU

Harness side

C-26 (Y)

AC

Connector: C-26

4WD-ECU

C-26 (Y)

Rear console 
assembly

<LH drive vehicles>

<RH drive vehicles>

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-30

STEP 3. Connector check: C-26 4WD-ECU 
connector.

Check for the contact with terminals.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the defective connector.

STEP 4. M.U.T.-II/III data list
Item 52: Steering wheel sensor <ST-N> (Refer to 
data list reference table 

P.22A-142

).

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Cope with Intermittent 

Malfunction 

P.00-5

).

NO : 

Replace the 4WD-ECU.

AC311002

4WD-ECU

Harness side

C-26 (Y)

AC

Connector: C-26

4WD-ECU

C-26 (Y)

Rear console 
assembly

<LH drive vehicles>

<RH drive vehicles>