Mitsubishi Galant (2004+). Manual — part 388
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-163
STEP 47. Check the CAN_L line (communication line
including the multi-center display unit (middle-grade type))
between joint connector (3) and middle-grade multi-center
display connector for a short to the power supply. Measure
the voltage 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
voltage at the wiring harness side of joint connector (3)
C-02.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between joint connector (3) terminal
19 and body ground.
OK: 4.0 V or less
Q: Does the voltage measure 4.0 V or less?
YES : If the voltage measures 4.0 V or less, go to Step 50.
NO : If the voltage measures more than 4.0 V, go to Step
48.
STEP 48. Check multi-center display unit (middle-grade
type) connector C-05 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 multi-center display unit (middle-grade type)
connector C-05 in good condition?
YES : Go to Step 49.
NO : Repair the damaged parts.
AC305231AP
CONNECTOR: C-02
AC209365
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
AC209365
AC209365FV
HARNESS SIDE: C-02
TEST HARNESS
AC305233 AF
CONNECTOR: C-05
HARNESS SIDE
C-05 (B)
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-164
STEP 49. Check the CAN_L line (communication line only)
between joint connector (3) and multi-center display unit
(middle-grade type) connector for a short to the power
supply. Measure the voltage 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 multi-center display
unit (middle-grade type) connector C-05, and measure the
voltage at the wiring harness side of joint connector (3)
C-02.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between joint connector (3) terminal
19 and body ground.
OK: 1.0 V or less
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
Q: Does the voltage measure 1.0 V or less?
YES : If the voltage measures 1.0 V or less, diagnose CAN
bus lines thoroughly by referring to
NO : If the voltage measures more than 1.0 V, repair the
wiring harness between joint connector (3) and the
multi-center display unit (middle-grade type)
connector.
AC305231AP
CONNECTOR: C-02
AC305233 AF
CONNECTOR: C-05
HARNESS SIDE
C-05 (B)
AC209365
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
AC209365
AC209365FV
HARNESS SIDE: C-02
TEST HARNESS
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-165
STEP 50. Check the CAN_L line (communication line only)
between joint connector (3) and the data link connector for
a short to the power supply. Measure the voltage 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
voltage at the wiring harness side of joint connector (3)
C-02.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between joint connector (3) terminal
18 and body ground.
OK: 1.0 V or less
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
Q: Does the voltage measure 1.0 V or less?
YES : If the voltage measures 1.0 V or less, go to Step 51.
NO : If the voltage measures more than 1.0 V, repair the
wiring harness between joint connector (3) and the
data link connector.
AC305231AP
CONNECTOR: C-02
AC209365
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
AC209365
AC209365GH
HARNESS SIDE: C-02
TEST HARNESS
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-166
STEP 51. Check the CAN_L line (communication line only)
between intermediate connector C-29 and joint connector
(3) for a short to the power supply. Measure the voltage 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 voltage at the wiring
harness side of joint connector (3) C-02.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between joint connector (3) terminal
20 and body ground.
OK: 1.0 V or less
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
Q: Does the voltage measure 1.0 V or less?
YES : If the voltage measures 1.0 V or less, diagnose CAN
bus lines thoroughly by referring to
NO : If the voltage measures more than 1.0 V, 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
AC209365
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22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
AC209365
AC209365GI
HARNESS SIDE: C-02
TEST HARNESS
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