Mitsubishi Evolution X. Manual — part 1132

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-163

STEP 8. Check the wiring harness between joint connector
(CAN1) C-105 and A/C-ECU connector C-22 for a short to
ground. Measure the resistance at joint connector (CAN1)
C-105.
(1) Disconnect joint connector (CAN1), and measure the

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

(2) Measure the resistance between joint connector (CAN1)

terminal 1 and body ground.

OK: 1 kilo ohm or more

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

terminal 12 and body ground.

OK: 1 kilo ohm or more

Q: Do all the resistances measure 1 kilo ohm or more?

YES (vehicles without MMCS) : Go to Step 9.
YES (vehicles with MMCS) : Go to Step 10.
NO : Go to Step 30.

STEP 9. 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 ground. Measure the
resistance at joint connector (CAN1) C-105.
(1) Disconnect joint connector (CAN1), and measure the

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

(2) Measure the resistance between joint connector (CAN1)

terminal 5 and body ground.

OK: 1 kilo ohm or more

AC608179

TEST
HARNESS

Harness side: C-105

CK

AC608179

Harness side: C-105

CL

TEST
HARNESS

AC608179

TEST
HARNESS

Harness side: C-105

CM

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-164

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

terminal 16 and body ground.

OK: 1 kilo ohm or more

Q: Do all the resistances measure 1 kilo ohm or more?

YES <vehicles without satellite radio> : Go to Step 12.
YES <vehicles with satellite radio> : Go to Step 11.
NO : Go to Step 31.

STEP 10. Check the wiring harness between joint
connector (CAN1) C-105 and CAN box unit connector C-15
for a short to ground. Measure the resistance at joint
connector (CAN1) C-105.
(1) Disconnect joint connector (CAN1), and measure the

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

(2) Measure the resistance between joint connector (CAN1)

terminal 5 and body ground.

OK: 1 kilo ohm or more

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

terminal 16 and body ground.

OK: 1 kilo ohm or more

Q: Do all the resistances measure 1 kilo ohm or more?

YES (vehicles without satellite radio) : Go to Step 12.
YES (vehicles with satellite radio) : Go to Step 11.
NO : Go to Step 32.

AC608179

Harness side: C-105

CN

TEST
HARNESS

AC608179

TEST
HARNESS

Harness side: C-105

CM

AC608179

Harness side: C-105

CN

TEST
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-165

STEP 11. Check the wiring harness between joint
connector (CAN1) C-105 and satellite radio tuner
connector C-18 for a short to ground. Measure the
resistance at joint connector (CAN1) C-105.
(1) Disconnect joint connector (CAN1), and measure the

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

(2) Measure the resistance between joint connector (CAN1)

terminal 2 and body ground.

OK: 1 kilo ohm or more

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

terminal 13 and body ground.

OK: 1 kilo ohm or more

Q: Do all the resistances measure 1 kilo ohm or more?

YES : Go to Step 12.
NO : Go to Step 33.

STEP 12. Check the wiring harness between joint
connector (CAN1) C-105 and ETACS-ECU connector C-301
for a short to ground. Measure the resistance at joint
connector (CAN1) C-105.
(1) Disconnect joint connector (CAN1) and ETACS-ECU

connector C-301, and measure the resistance at the wiring
harness side of joint connector (CAN1).

(2) Measure the resistance between joint connector (CAN1)

terminal 6 and body ground.

OK: 1 kilo ohm or more

AC608179

TEST
HARNESS

Harness side: C-105

CO

AC608179

Harness side: C-105

CP

TEST
HARNESS

AC608179

TEST
HARNESS

Harness side: C-105

CQ

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-166

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

terminal 19 and body ground.

OK: 1 kilo ohm or more

Q: Do all the resistances measure 1 kilo ohm or more?

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

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

STEP 13. Check the wiring harness between joint
connector (CAN1) C-105 and combination meter connector
C-04 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 3 and body ground.

OK: 4.7 volts or less

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

terminal 14 and body ground.

OK: 4.7 volts or less

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

YES (vehicles with KOS) : Go to Step 14.
YES (vehicles with WCM) : Go to Step 15.
NO (vehicles with KOS and WCM) : Go to Step 24.

AC608179

Harness side: C-105

CR

TEST
HARNESS

AC608178

TEST
HARNESS

Harness side: C-105

BH

AC608178

Harness side: C-105

BI

TEST
HARNESS