Mitsubishi Galant 9G. Manual — part 1332

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-432

STEP 3. Check joint connector (3) C-02 and combination
meter connector C-101 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.

CAUTION

The strand end of the twisted wire should be within 10 cm
(4 inches) from the connector. For details refer to

P.54C-4

.

Check the joint connector at the wiring harness side for loose,
corroded or damaged terminals, or terminals pushed back in
the connector, and also check the short pin behind the connec-
tor for corrosion, deformation and delamination.
Q: Are joint connector (3) C-02 and combination meter

connector C-101 in good condition?
YES : Go to Step 4.
NO : Repair the damaged parts. Replace the joint

connector as necessary.

AC305232

HARNESS SIDE

C-101

CONNECTORS: C-02, C-101

AE

C-02

C-02

C-101

AC209350

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12

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13

3

14

4

15

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16

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AB

SHORT PIN

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-433

STEP 4. Check the CAN bus lines (communication line
including the combination meter) between joint connector
(3) and the combination meter. Measure the resistance at
joint connector (3) C-02.

CAUTION

A digital multimeter should be used. For details refer to

P.54C-4

.

CAUTION

The test wiring harness should be used. For details refer to

P.54C-4

.

(1) Disconnect joint connector (3) C-02, and measure the

resistance at the wiring harness side of joint connector (3)
C-02.

(2) Turn the ignition switch to the "LOCK" (OFF) position.

CAUTION

Disconnect the negative battery terminal. For details refer
to

P.54C-4

.

(3) Disconnect the negative battery terminal.

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

terminals 4 and 15.

OK: 120

± 20 Ω

Q: Does the resistance measure 120

± 20 Ω?

YES : If the resistance measures 120

± 20 Ω, diagnose CAN

bus lines thoroughly by referring to

P.54C-456

.

NO : If the resistance does not measure 120

± 20 Ω, go to

Step 5 .

AC305231AP

CONNECTOR: C-02

AC209438

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13

1

12

TEST
HARNESS

AQ

TEST
HARNESS

HARNESS SIDE: C-02

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-434

STEP 5. Check the CAN bus lines (communication line
only) between joint connector (3) and the combination
meter. Measure the resistance at joint connector (3) C-02
and combination meter connector C-101.

CAUTION

A digital multimeter should be used. For details refer to

P.54C-4

.

CAUTION

The test wiring harness should be used. For details refer to

P.54C-4

.

(1) Disconnect joint connector (3) C-02 and combination meter

connector C-101, and measure the resistance between
each wiring harness side connector.

(2) Turn the ignition switch to the "LOCK" (OFF) position.

CAUTION

Disconnect the negative battery terminal. For details refer
to

P.54C-4

.

(3) Disconnect the negative battery terminal.

AC305232

HARNESS SIDE

C-101

CONNECTORS: C-02, C-101

AE

C-02

C-02

C-101

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-435

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

terminal 15 and combination meter connector terminal 15.

OK: 2 ohms or less

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

terminal 4 and combination meter connector terminal 14.

OK: 2 ohms or less

CAUTION

Strictly observe the specified wiring harness repair proce-
dure. For details refer to

P.54C-5

.

Q: Do all the resistances measure 2 ohms or less?

YES : If the resistance measures 2 ohms or less, go to Step

6.

NO : If either of the resistances measures more than 2

ohms or all the resistances measure more than 2
ohms, repair the wiring harness between joint
connector (3) and the combination meter connector.

AC204582

HARNESS SIDE: C-02

BZ

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G

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1514

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4 3

1

TEST
HARNESS

HARNESS SIDE: C-101

TEST
HARNESS

AC204582

HARNESS SIDE: C-02

TEST
HARNESS

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TEST
HARNESS

HARNESS SIDE: C-101

CA