Mitsubishi Lancer Evolution X. Manual - part 51

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-229

STEP 17. Check the wiring harness between joint 
connector (CAN1) C-105 and SRS-ECU connector C-37 for 
a short to power supply. Measure the voltage at joint 
connector (CAN1) C-105.
(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 8 and body ground.

OK: 4.7 V or less

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

terminal 21 and body ground.

OK: 4.7 V or less

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

YES : Go to Step 18.
NO :  Go to Step 51.

AC608178

TEST 
HARNESS

Harness side: C-105

BN

AC608178

Harness side: C-105

BO

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-230

STEP 18. 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.
(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 

20.

YES (vehicles with hands free system) : Go to Step 19.
NO  :  Go to Step 52.

AC608178

TEST 
HARNESS

Harness side: C-105

BP

AC608178

Harness side: C-105

BQ

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-231

STEP 19. 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.
(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 20.
NO :  Go to Step 53.

AC608178

TEST 
HARNESS

Harness side: C-105

BR

AC608178

Harness side: C-105

BS

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-232

STEP 20. 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.
(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 21.
YES (vehicles with MMCS) : Go to Step 22.
NO  :  Go to Step 54.

AC608178

TEST 
HARNESS

Harness side: C-105

BT

AC608178

Harness side: C-105

BU

TEST 
HARNESS