Mitsubishi Galant 9G. Manual — part 1315
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-364
STEP 3. Check joint connector (3) C-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
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: Is joint connector (3) C-02 in good condition?
YES : Go to Step 4.
NO : Repair the damaged parts. Replace the joint
connector as necessary.
AC305231AP
CONNECTOR: C-02
AC209350
1
12
2
13
3
14
4
15
5
16
6
17
7
18
8
19
9
20
10
21
11
22
AB
SHORT PIN
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-365
STEP 4. Check the CAN_L and H lines (communication
lines including the combination meter) between joint
connector (3) and the combination meter 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 4 and 15.
OK: 120
± 20 Ω
Q: Does the resistance measure 120
± 20 Ω?
YES : If the resistance measures 120
± 20 Ω, go to Step 8.
NO : If the resistance does not measure 120
± 20 Ω, go to
Step 5 .
STEP 5. Check 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
Q: Is combination meter connector C-101 in good
condition?
YES : Go to Step 6.
NO : Repair the damaged parts.
AC305231AP
CONNECTOR: C-02
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
AQ
TEST
HARNESS
HARNESS SIDE: C-02
AC305231AQ
CONNECTOR: C-101
HARNESS SIDE
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-366
STEP 6. Check the CAN_L and H lines (communication
lines only) between joint connector (3) and the
combination meter 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 combination meter
connector C-101, 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 4 and 15.
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, go to Step 7
.
NO : If the resistance measures less than 1 k
Ω, repair the
wiring harness between joint connector (3) and the
combination meter connector.
AC305232
HARNESS SIDE
C-101
CONNECTORS: C-02, C-101
AE
C-02
C-02
C-101
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
AQ
TEST
HARNESS
HARNESS SIDE: C-02
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-367
STEP 7. Check the combination meter for short circuit.
Measure the resistance at combination meter connector
C-101.
CAUTION
A digital multimeter should be used. For details refer to
.
(1) Disconnect combination meter C-101, and measure the
resistance at the component side of combination meter
connector C-101.
(2) Measure the resistance between combination meter
connector terminals 14 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
NO : If the resistance does not measure 120
± 20 Ω,
replace the combination meter.
AC305231AQ
CONNECTOR: C-101
HARNESS SIDE
AC204582BY
COMPONENT SIDE: C-101
G
11
22
17
3
14
G
12
1
13
2
15
4
16
5
18
7
6
19
8
10
21
20
9
TEST
HARNESS
TEST HARNESS
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