Mitsubishi Lancer Evolution X. Manual - part 52

DIAGNOSIS

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CONTROLLER AREA NETWORK (CAN)

54C-233

STEP 21. 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.
(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 24.
YES (vehicles with satellite radio) : Go to Step 23.
NO  :  Go to Step 55.

AC608178

TEST 
HARNESS

Harness side: C-105

BV

AC608178

Harness side: C-105

BW

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-234

STEP 22. 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.
(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 24.
YES (vehicles with satellite radio) : Go to Step 23.
NO  :  Go to Step 56.

AC608178

TEST 
HARNESS

Harness side: C-105

BV

AC608178

Harness side: C-105

BW

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-235

STEP 23. 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.
(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 V or less

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

terminal 13 and body ground.

OK: 4.7 V or less

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

YES : Go to Step 24.
NO :  Go to Step 57.

AC608178

TEST 
HARNESS

Harness side: C-105

BY

AC608178

Harness side: C-06

BE

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DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-236

STEP 24. 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.
(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: 1 V or less

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

terminal 19 and body ground.

OK: 1 V or less

Q: Do all the voltages measure 1 V or less?

YES : Go to Step 58.
NO :  Repair the wiring harness between joint connector 

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

STEP 25. Check the wiring harness for line-to-line short. 
Measure the resistance at ETACS-ECU connector C-301

CAUTION

Disconnect the negative battery terminal. For details refer 
to 

P.54C-7

.

(1) Disconnect ETACS-ECU connector C-301, and check that 

there is continuity at the harness side of ETACS-ECU.

(2) Check that there is continuity between ETACS-ECU 

connector terminals 6 and 7.

OK: No continuity

Q: Is the check result normal?

YES : Go to Step 37.
NO :  Go to Step 26.

AC608178

TEST 
HARNESS

Harness side: C-105

BX

AC608178

Harness side: C-105

BZ

TEST 
HARNESS

AC608179

Harness side: C-301

BN

TEST 
HARNESS

TEST 
HARNESS