Mitsubishi Galant (2004+). Manual - part 443

 

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Mitsubishi Galant (2004+). Manual - part 443

 

 

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-383

STEP 16. Check the CAN_L and H lines (communication 
lines including the SRS-ECU) between joint connector (3) 
and the SRS-ECU for a short circuit. 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 3 and 14.

OK: 1 k

 or more

Q: Does the resistance measure 1 k

 or more?

YES : If the resistance measures 1 k

Ω or more, go to Step 

23  .

NO :  If the resistance measures less than 1 k

Ω, go to Step 

17.

STEP 17. Check intermediate connector C-22 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

.

Q: Is intermediate connector C-22 in good condition?

YES : Go to Step 18.
NO :  Repair the damaged parts.

AC305231AP

CONNECTOR: C-02

AC209438

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22

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21

9

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19

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18

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17

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16

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3

14

2

13

1

12

TEST 
HARNESS

AV

TEST 
HARNESS

HARNESS SIDE: C-02

AC305233 AI

CONNECTOR: C-22

C-22 (Y)

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-384

STEP 18. Check the lines between the CAN_L and H lines 
(communication line including ECUs) of the floor wiring 
harness for a short circuit. Measure the resistance at 

intermediate connector C-22.

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 intermediate connector C-22, and measure the 

resistance at the male side (at floor wiring harness side).

(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 intermediate connector 

terminals 22 and 23.

OK: 120 

± 20 

Q: Does the resistance measure 120 

± 20 ?

YES : If the resistance measures 120 

± 20 Ω, go to Step 22.

NO :  If the resistance does not measure 120 

± 20 Ω, go to 

Step 19.

AC305233 AI

CONNECTOR: C-22

C-22 (Y)

AC204582

AC204582CS

MALE SIDE: C-22

TEST 
HARNESS

TEST HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-385

STEP 19. Check the CAN_L and H lines (communication 
lines only) between the SRS-ECU connector and the 
intermediate connector for a short circuit. Measure the 

resistance at intermediate connector C-22.

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 intermediate connector C-22 and SRS-ECU 

connector C-121, and measure the resistance at the male 
side of intermediate connector C-22 (at floor wiring harness 
side).

(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.

AC305234AC

CONNECTORS: C-22, C-121

C-121 HARNESS SIDE

C-121 (Y)

C-22 (Y)

C-22

48

21

22

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27

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31

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DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-386

(4) Measure the resistance between intermediate connector 

terminals 22 and 23.

OK: 1 k

 or more

Q: Does the resistance measure 1 k

 or more?

YES : If the resistance measures 1 k

Ω or more, go to Step 

20  .

NO :  If the resistance measures less than 1 k

Ω, repair the 

wiring harness between intermediate connector C-22 
and SRS-ECU connector.

STEP 20. Check SRS-ECU connector C-121 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

.

Q: Is SRS-ECU connector C-121 in good condition?

YES : Go to Step 21.
NO :  Repair the damaged parts.

AC204582

AC204582CS

MALE SIDE: C-22

TEST 
HARNESS

TEST HARNESS

AC305233 AJ

CONNECTOR: C-121

HARNESS SIDE

C-121 (Y)

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