Mitsubishi Evolution X. Manual - part 1134

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-171

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

terminal 1 and body ground.

OK: 4.7 volts or less

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

terminal 12 and body ground.

OK: 4.7 volts or less

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

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

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 volts or less

AC608178

TEST 
HARNESS

Harness side: C-105

BT

AC608178

Harness side: C-105

BU

TEST 
HARNESS

AC608178

TEST 
HARNESS

Harness side: C-105

BV

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-172

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

terminal 16 and body ground.

OK: 4.7 volts or less

Q: Do all the voltages measure 4.7 volts 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.

STEP 21. Check the wiring harness between joint 
connector (CAN1) C-105 and CAN box unit connector C-15 
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 volts or less

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

terminal 16 and body ground.

OK: 4.7 volts or less

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

YES (vehicles without satellite radio) : Go to Step 23.
YES (vehicles with satellite radio) : Go to Step 22.
NO  :  Go to Step 32.

AC608178

Harness side: C-105

BW

TEST 
HARNESS

AC608178

TEST 
HARNESS

Harness side: C-105

BV

AC608178

Harness side: C-105

BW

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-173

STEP 22. Check the wiring harness between joint 
connector (CAN1) C-105 and satellite radio tuner 
connector C-18 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 2 and body ground.

OK: 4.7 volts or less

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

terminal 13 and body ground.

OK: 4.7 volts or less

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

YES : Go to Step 23.
NO :  Go to Step 33.

AC608178

TEST 
HARNESS

Harness side: C-105

BY

AC608178

Harness side: C-06

BE

TEST 
HARNESS

DIAGNOSIS

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CONTROLLER AREA NETWORK (CAN)

54C-174

STEP 23. Check the wiring harness between joint 
connector (CAN1) C-105 and ETACS-ECU connector C-301 
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 ETACS-ECU 

connector C-301, 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 6 and body ground.

OK: 4.7 volts or less

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

terminal 19 and body ground.

OK: 4.7 volts or less

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

YES : Go to Step 34.
NO :  Repair the wiring harness between joint connector 

(CAN1) C-105 and ETACS-ECU connector C-301.

AC608178

TEST 
HARNESS

Harness side: C-105

BX

AC608178

Harness side: C-105

BZ

TEST 
HARNESS