Mitsubishi Lancer Evolution IX. Manual - part 609

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-119

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: No communication possible between M.U.T.-II/III and all systems

FUSIBLE
LINK

IGNITION
SWITCH (IG2)

POWER
SOURCE

4WD-ECU

DIAGNOSIS
CONNECTOR

1

Diagnosis connector circuit <LH drive vehicles>

Wire colour code
B : Black     LG : Light green
G : Green     L : Blue
W : White     Y : Yellow
SB : Sky blue     BR : Brown
O : Orange     GR : Gray
R : Red     P : Pink     V : Violet

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-120

OPERATION

The M.U.T.-II/III is energised by connecting the diag-
nosis connector.

COMMENTS ON TROUBLE SYMPTOM

The diagnosis connector power supply circuit, earth 
circuit, or M.U.T.-II/III may be faulty.

PROBABLE CAUSES

• Malfunction of diagnosis connector

• Damaged harness wires and connectors

• Malfunction of the 4WD-ECU

FUSIBLE
LINK

IGNITION
SWITCH (IG2)

POWER
SOURCE

4WD-ECU

DIAGNOSIS
CONNECTOR

1

Diagnosis connector circuit <RH drive vehicles>

Wire colour code
B : Black     LG : Light green
G : Green     L : Blue
W : White     Y : Yellow
SB : Sky blue     BR : Brown
O : Orange     GR : Gray
R : Red     P : Pink     V : Violet

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-121

DIAGNOSIS

STEP 1. Measure the voltage at diagnosis 
connector C-14.

Measure the voltage between diagnosis connector 
C-14 terminal No.16 and earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Go to Step 2.

STEP 2. Connectors check: C-14 diagnosis 
connector, C-126 intermediate connector, C-212, 
C-214 J/B connector.

AC311015AM

Connector: C-14 <LH drive vehicles>

C-14 (B)

C-14

AC311037

C-14 (B)

AE

Connector: C-14 <RH drive vehicles>

C-14

AC311015AM

Connector: C-14 <LH drive vehicles>

C-14 (B)

C-14

AC311037

C-14 (B)

AE

Connector: C-14 <RH drive vehicles>

C-14

AC311015AN

Connector: C-126 <LH drive vehicles>

C-126

C-126

AC311016AI

Connector: C-126 <RH drive vehicles>

C-126

C-126

TROUBLESHOOTING <ACD>

MANUAL TRANSMISSION (FF)

22A-122

Check for the contact with terminals.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair the defective connector.

STEP 3. Check the harness between diagnosis 
connector C-14 terminal No.16 and fusible link 
No.1.

Check the power supply line for short or open circuit.

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Cope with Intermittent 

Malfunction 

P.00-5

).

NO : 

Repair the wiring harness.

AC310448

AV

Connector: C-212, C-214 <LH drive vehicles>

Junction block (front view)

C-214

C-212 (B)

C-212

C-214

AC310458

AR

Connector: C-212, 
C-214 <RH drive vehicles>

Junction block (front view)

C-214

C-212 (B)

C-212

C-214

AC311015AM

Connector: C-14 <LH drive vehicles>

C-14 (B)

C-14

AC311037

C-14 (B)

AE

Connector: C-14 <RH drive vehicles>

C-14