Mitsubishi Lancer Evolution X. Manual — part 8

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-57

STEP 4. Check the wiring harness between joint connector
(CAN3) C-127 and ASC-ECU connector A-05 for a short to
ground. Measure the resistance at joint connector (CAN3)
C-127.

CAUTION

Disconnect the negative battery terminal. For details refer
to

P.54C-7

.

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 (CAN3), and measure the

resistance at the wiring harness side of joint connector
(CAN3).

(2) Measure the resistance between joint connector (CAN3)

terminal 6 and body ground.

OK: 1 kΩ or more

(3) Measure the resistance between joint connector (CAN3)

terminal 19 and body ground.

OK: 1 kΩ or more

Q: Do all the resistances measure 1 kΩ or more?

YES <M/T> : Go to Step 5.
YES <TC-SST> : Go to Step 6.
NO : Go to Step 13.

AC709707

TEST
HARNESS

Harness side: C-127

AV

AC709707AW

TEST
HARNESS

Harness side: C-127

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-58

STEP 5. Check the wiring harness between joint connector
(CAN3) C-127 and ECM connector B-10 <M/T> for a short to
ground. Measure the resistance at joint connector (CAN3)
C-127.

CAUTION

Disconnect the negative battery terminal. For details refer
to

P.54C-7

.

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 (CAN3), and measure the

resistance at the wiring harness side of joint connector
(CAN3).

(2) Measure the resistance between joint connector (CAN3)

terminal 4 and body ground.

OK: 1 kΩ or more

(3) Measure the resistance between joint connector (CAN3)

terminal 15 and body ground.

OK: 1 kΩ or more

Q: Do all the resistances measure 1 kΩ or more?

YES : Check intermediate connector C-131, and repair if

necessary. If the intermediate connector is in good
condition, repair the wiring harness between joint
connector (CAN2) C-104 and joint connector (CAN3)
C-127.

NO : Go to Step 14.

AC709707

TEST
HARNESS

Harness side: C-127

AX

AC709707AY

TEST
HARNESS

Harness side: C-127

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-59

STEP 6. Check the wiring harness between joint connector
(CAN3) C-127 and shift lever connector C-27 <TC-SST> for
a short to ground. Measure the resistance at joint
connector (CAN3) C-127.

CAUTION

Disconnect the negative battery terminal. For details refer
to

P.54C-7

.

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 (CAN3), and measure the

resistance at the wiring harness side of joint connector
(CAN3).

(2) Measure the resistance between joint connector (CAN3)

terminal 7 and body ground.

OK: 1 kΩ or more

(3) Measure the resistance between joint connector (CAN3)

terminal 20 and body ground.

OK: 1 kΩ or more

Q: Do all the resistances measure 1 kΩ or more?

YES : Go to Step 7.
NO : Go to Step 15.

AC709707

TEST
HARNESS

Harness side: C-127

AZ

AC709707BA

TEST
HARNESS

Harness side: C-127

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-60

STEP 7. Check the wiring harness between joint connector
(CAN4) A-14 and ECM connector B-10 <TC-SST> for a
short to ground. Measure the resistance at joint connector
(CAN4) A-14.

CAUTION

Disconnect the negative battery terminal. For details refer
to

P.54C-7

.

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 (CAN4), and measure the

resistance at the wiring harness side of joint connector
(CAN4).

(2) Measure the resistance between joint connector (CAN4)

terminal 7 and body ground.

OK: 1 kΩ or more

(3) Measure the resistance between joint connector (CAN4)

terminal 20 and body ground.

OK: 1 kΩ or more

Q: Do all the resistances measure 1 kΩ or more?

YES : Go to Step 8.
NO : Go to Step 14.

AC709707

TEST
HARNESS

Harness side: A-14

BB

AC709707BC

TEST
HARNESS

Harness side: A-14