Mitsubishi Lancer Evolution X. Manual - part 39

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-181

STEP 17. Check the wiring harness between joint 
connector (CAN1) C-105 and occupant classification-ECU 
connector D-39-2 for a short to power supply. Measure the 
voltage at joint connector (CAN1) C-105.

CAUTION

A digital multimeter should be used. For details refer to 

P.54C-7

.

CAUTION

The test wiring harness should be used. For details refer to 

P.54C-7

.

(1) Disconnect joint connector (CAN1), and measure the 

voltage at the wiring harness side of joint connector 
(CAN1).

(2) Turn the ignition switch to the ON position.
(3) Measure the voltage between joint connector (CAN1) 

terminal 11 and body ground.

OK: 4.7 V or less

(4) Measure the voltage between joint connector (CAN1) 

terminal 24 and body ground.

OK: 4.7 V or less

Q: Do all the voltages measure 4.7 V or less?

YES (vehicles without hands free system) : Go to Step 

19.

YES (vehicles with hands free system) : Go to Step 18.
NO  :  Go to Step 28.

AC608178

TEST 
HARNESS

Harness side: C-105

BP

AC608178

Harness side: C-105

BQ

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-182

STEP 18. Check the wiring harness between joint 
connector (CAN1) C-105 and hands free module connector 
C-11 for a short to power supply. Measure the voltage at 
joint connector (CAN1) C-105.

CAUTION

A digital multimeter should be used. For details refer to 

P.54C-7

.

CAUTION

The test wiring harness should be used. For details refer to 

P.54C-7

.

(1) Disconnect joint connector (CAN1), and measure the 

voltage at the wiring harness side of joint connector 
(CAN1).

(2) Turn the ignition switch to the ON position.
(3) Measure the voltage between joint connector (CAN1) 

terminal 10 and body ground.

OK: 4.7 V or less

(4) Measure the voltage between joint connector (CAN1) 

terminal 23 and body ground.

OK: 4.7 V or less

Q: Do all the voltages measure 4.7 V or less?

YES : Go to Step 19.
NO :  Go to Step 29.

AC608178

TEST 
HARNESS

Harness side: C-105

BR

AC608178

Harness side: C-105

BS

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-183

STEP 19. Check the wiring harness between joint 
connector (CAN1) C-105 and A/C-ECU connector C-22 
<vehicles with A/C> or heater control unit connector C-53 
<vehicles without A/C> for a short to power supply. 
Measure the voltage at joint connector (CAN1) C-105.

CAUTION

A digital multimeter should be used. For details refer to 

P.54C-7

.

CAUTION

The test wiring harness should be used. For details refer to 

P.54C-7

.

(1) Disconnect joint connector (CAN1), and measure the 

voltage at the wiring harness side of joint connector 
(CAN1).

(2) Turn the ignition switch to the ON position.
(3) Measure the voltage between joint connector (CAN1) 

terminal 1 and body ground.

OK: 4.7 V or less

(4) Measure the voltage between joint connector (CAN1) 

terminal 12 and body ground.

OK: 4.7 V or less

Q: Do all the voltages measure 4.7 V or less?

YES (vehicles without MMCS) : Go to Step 20.
YES (vehicles with MMCS) : Go to Step 21.
NO  :  Go to Step 30.

AC608178

TEST 
HARNESS

Harness side: C-105

BT

AC608178

Harness side: C-105

BU

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-184

STEP 20. Check the wiring harness between joint 
connector (CAN1) C-105 and radio and CD player or CD 
changer connector C-107 for a short to power supply. 
Measure the voltage at joint connector (CAN1) C-105.

CAUTION

A digital multimeter should be used. For details refer to 

P.54C-7

.

CAUTION

The test wiring harness should be used. For details refer to 

P.54C-7

.

(1) Disconnect joint connector (CAN1), and measure the 

voltage at the wiring harness side of joint connector 
(CAN1).

(2) Turn the ignition switch to the ON position.
(3) Measure the voltage between joint connector (CAN1) 

terminal 5 and body ground.

OK: 4.7 V or less

(4) Measure the voltage between joint connector (CAN1) 

terminal 16 and body ground.

OK: 4.7 V or less

Q: Do all the voltages measure 4.7 V or less?

YES (vehicles without satellite radio) : Go to Step 23.
YES (vehicles with satellite radio) : Go to Step 22.
NO  :  Go to Step 31.

AC608178

TEST 
HARNESS

Harness side: C-105

BV

AC608178

Harness side: C-105

BW

TEST 
HARNESS