Mitsubishi Galant 9G. Manual — part 1360
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-544
(4) Measure the resistance between joint connector (3)
terminal 18 and data link connector terminal 14.
OK: 2 ohms or less
(5) Measure the resistance between joint connector (3)
terminal 7 and data link connector terminal 6.
OK: 2 ohms or less
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
Q: Do all the resistances measure 2 ohms or less?
YES : If all the resistances measure 2 ohms or less, refer to
diagnostics item 9: Check the CAN_L and H lines for
a short circuit (Refer to
).
NO : If all the resistances measure 2 ohms or less, repair
the wiring harness between joint connector (3) and
the data link connector.
AC204582DI
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
TEST
HARNESS
HARNESS SIDE: C-02
TEST
HARNESS
Y
8
16
15
7
5
1314
6
12
4
2
1011
3
9
1
HARNESS SIDE: C-125
AC204582
HARNESS SIDE: C-02
TEST
HARNESS
DH
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
Y
8
16
15
7
5
1314
6
12
4
2
1011
3
9
1
TEST
HARNESS
HARNESS SIDE: C-125
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-545
STEP 23. Check ABS-ECU connector A-02 and powertrain
control module connector B-19 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: Are ABS-ECU connector A-02 and powertrain control
module connector B-19 in good condition?
YES : Go to Step 24.
NO : Repair the damaged parts.
AC305206
CONNECTOR: A-02
AG
A-02 (GR)
HARNESS SIDE
AC306248AD
B-19 (B)
CONNECTOR: B-19
PCM
AIR
CLEANER
HARNESS SIDE
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-546
STEP 24. Using scan tool MB991958, diagnose the CAN
bus line (Disconnect powertrain control module connector
B-19, and check the powertrain control module system).
(1) Disconnect powertrain control module connector B-19.
(2) Turn the ignition switch to the "ON" position.
(3) Diagnose CAN bus lines, and check if the MUT-III screen is
as shown in the illustration.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
(5) Connect powertrain control module connector B-19.
Q: Does the MUT-III screen correspond to the illustration?
YES : If the MUT-III screen corresponds to the illustration,
go to Step 25 .
NO : If the MUT-III screen does not correspond to the
illustration, go to Step 27.
AC306248AD
B-19 (B)
CONNECTOR: B-19
PCM
AIR
CLEANER
HARNESS SIDE
AC306075
: Red section on screen
AH
PCM
ETACS
-ECU
AC-ECU
SRS-ECU
C.DISPLAY
MUT
J/C
ABS-ECU
METER
-ECU
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-547
STEP 25. Check the CAN bus lines between the ABS-ECU
and the powertrain control module. Measure the resistance
between ABS-ECU connector A-02 and powertrain control
module connector B-19.
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 ABS-ECU connector A-02 and powertrain
control module connector B-19, 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
(3) Disconnect the negative battery terminal.
AC305206
CONNECTOR: A-02
AG
A-02 (GR)
HARNESS SIDE
AC306248AD
B-19 (B)
CONNECTOR: B-19
PCM
AIR
CLEANER
HARNESS SIDE
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