Mitsubishi Galant 9G. Manual — part 1312
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-352
STEP 22. Check the CAN_L and H lines (communication
lines only) between joint connector (3) and the
intermediate connector for a short circuit. Measure the
resistance at joint connector (3) C-02.
CAUTION
A digital multimeter should be used. For details refer to
.
CAUTION
The test wiring harness should be used. For details refer to
.
(1) Disconnect intermediate connector C-22 and 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
(3) Disconnect the negative battery terminal.
(4) Measure the resistance between joint connector (3)
terminals 3 and 14.
OK: 1 k
Ω or more
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
Q: Does the resistance measure 1 k
Ω or more?
YES : If the resistance measures 1 k
Ω or more, diagnose
CAN bus lines thoroughly by referring to
NO : If the resistance measures less than 1 k
Ω, repair the
wiring harness between intermediate connector C-22
and joint connector (3).
AC305231AP
CONNECTOR: C-02
AC305233 AI
CONNECTOR: C-22
C-22 (Y)
AC209438
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
TEST
HARNESS
AV
TEST
HARNESS
HARNESS SIDE: C-02
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-353
STEP 23. Check data link connector C-125 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
Q: Is data link connector C-125 in good condition?
YES : Go to Step 24.
NO : Repair the damaged parts.
STEP 24. Check the CAN_L and H lines (communication
lines only) between joint connector (3) and the data link
connector for a short circuit. Measure the resistance at
joint connector (3) C-02.
CAUTION
A digital multimeter should be used. For details refer to
.
CAUTION
The test wiring harness should be used. For details refer to
.
(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
(3) Disconnect the negative battery terminal.
(4) Measure the resistance between joint connector (3)
terminals 7 and 18.
OK: 1 k
Ω or more
Q: Does the resistance measure 1 k
Ω or more?
YES : If the resistance measures 1 k
Ω or more, go to Step
NO : If the resistance measures less than 1 k
Ω, repair the
wiring harness between joint connector (3) and the
data link connector.
AC305231AR
CONNECTOR: C-125
C-125 (B)
AC305231AP
CONNECTOR: C-02
AC209438
1110 9 8 7 6 5 4 3 2 1
22 21201918 1716 15 14 1312
AC209438
AC209438
TEST
HARNESS
BA
TEST
HARNESS
HARNESS SIDE: C-02
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-354
STEP 25. Check the CAN_L and H lines (communication
lines only) between joint connector (3) and the
intermediate connector for a short circuit. Measure the
resistance at joint connector (3) C-02.
CAUTION
A digital multimeter should be used. For details refer to
.
CAUTION
The test wiring harness should be used. For details refer to
.
(1) Disconnect intermediate connector C-29 and 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
(3) Disconnect the negative battery terminal.
(4) Measure the resistance between joint connector (3)
terminals 9 and 20.
OK: 1 k
Ω or more
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
Q: Does the resistance measure 1 k
Ω or more?
YES : If the resistance measures 1 k
Ω or more, diagnose
CAN bus lines thoroughly by referring to
NO : If the resistance measures less than 1 k
Ω, repair the
wiring harness between intermediate connector C-29
and joint connector (3).
AC305232
CONNECTORS: C-02, C-29
AG
C-02
C-02
C-29
C-29
AC209438
AC209438
TEST
HARNESS
BB
TEST
HARNESS
1110 9 8 7 6 5 4 3 2 1
22 21201918 1716 15 14 1312
HARNESS SIDE: C-02
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-355
STEP 26. Check ABS-ECU connector A-02 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
Q: Is ABS-ECU connector A-02 in good condition?
YES : Go to Step 27.
NO : Repair the damaged parts.
STEP 27. Check the CAN_L and H lines (communication
lines only) between the ABS-ECU connector and the
intermediate connector for a short circuit. Measure the
resistance at intermediate connector C-29.
CAUTION
A digital multimeter should be used. For details refer to
.
CAUTION
The test wiring harness should be used. For details refer to
.
(1) Disconnect intermediate connector C-29 and ABS-ECU
connector A-02, and measure the resistance at the male
side of intermediate connector C-29 (at front wiring harness
side).
(2) Turn the ignition switch to the "LOCK" (OFF) position.
CAUTION
Disconnect the negative battery terminal. For details refer
to
(3) Disconnect the negative battery terminal.
AC305206
CONNECTOR: A-02
AG
A-02 (GR)
HARNESS SIDE
AC305206
CONNECTOR: A-02
AG
A-02 (GR)
HARNESS SIDE
AC305231AI
CONNECTOR: C-29
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