Mitsubishi Lancer Evolution IX. Manual - part 585

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-23

STEP 6. Connectors check: C-26 4WD-ECU 
connector, C-122 intermediate connector <LH 
drive vehicles> or C-26 4WD-ECU connector, 
C-138 intermediate connector <RH drive 
vehicles>.

Check for the contact with terminals.

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the defective connector.

STEP 7. Check the harness between 4WD-ECU 
connector C-26 (terminal No.33, 34, 44) 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 open circuit.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the wiring harness.

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>

AC311015AC

Connector: C-122 <LH drive vehicles>

C-122

AC311016AB

Connector: C-138 <RH drive vehicles>

C-138

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>

AC311015AC

Connector: C-122 <LH drive vehicles>

C-122

AC311016AB

Connector: C-138 <RH drive vehicles>

C-138

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-24

STEP 8. M.U.T.-II/III data list

• Item 21: Steering wheel sensor voltage <ST-1>

• Item 22: Steering wheel sensor voltage <ST-2>

• Item 23: Steering wheel sensor voltage <ST-N>

Check the above data list (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 9.

STEP 9. Measure the voltage at steering wheel 
sensor connector C-230.

(1) Disconnect the steering wheel sensor connector 

C-230, and measure the voltage between 
terminal No.2 and earth at the wiring harness 
side.

(2) Turn the ignition switch to the ON position.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 12.

NO : 

Go to Step 10.

AC311035

<LH drive vehicles>

Harness side

C-230

AB

Connector: C-230

<RH drive vehicles>

C-230

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-25

STEP 10. Connectors check: C-101 J/C (2), C-210 
J/B connector, C-230 steering wheel sensor 
connector.

Check for the contact with terminals.

Q: Is the check result normal?

YES : 

Go to Step 11.

NO : 

Repair the defective connector.

AC311015AE

Connector: C-101 <LH drive vehicles>

C-101 (L)

AC311037

C-101 (L)

AB

Connector: C-101 <RH drive vehicles>

AC310448

AS

Connector: C-210 <LH drive vehicles>

Junction block (front view)

Junction block side

C-210

AC310458

AP

Connector: C-210 
<RH drive vehicles>

Junction block (front view)

Junction 
block side

C-210

AC311035

<LH drive vehicles>

Harness side

C-230

AB

Connector: C-230

<RH drive vehicles>

C-230

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-26

STEP 11. Check the harness between J/B 
connector C-210 terminal No.13 and steering 
wheel sensor connector C-230 terminal No.2.

Check the power supply line for short or open circuit.

Q: Is the check result normal?

YES : 

The inspection is complete.

NO : 

Repair the wiring harness.

STEP 12. Measure the resistance at steering 
wheel sensor connector C-230.

(1) Disconnect the steering wheel sensor connector 

C-230, and measure the resistance between 
terminal No.3 and earth at the wiring harness 
side.

OK: 2 

Ω or less

Q: Is the check result normal?

YES : 

Go to Step 15.

NO : 

Go to Step 13.

AC310448

AS

Connector: C-210 <LH drive vehicles>

Junction block (front view)

Junction block side

C-210

AC310458

AP

Connector: C-210 
<RH drive vehicles>

Junction block (front view)

Junction 
block side

C-210

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