Mitsubishi L200. Manual — part 839
TROUBLESHOOTING
CONTROLLER AREA NETWORK (CAN)
54C-115
PROBABLE CAUSES
• Damaged harness wires and connectors
• Power supply circuit malfunction of the G and
yaw rate sensor
• Malfunction of the G and yaw rate sensor
TROUBLESHOOTING
CONTROLLER AREA NETWORK (CAN)
54C-116
DIAGNOSIS PROCEDURE
STEP 1. Connector check: C-119 joint connector
(CAN1) and C-144 G and yaw rate sensor
connector
AC903853
BQ
Connectors: C-119, C-144 <LHD>
C-119 (GR)
C-144 (GR)
C-119
Harness side
C-144
AC903868
CM
Connector: C-119 <RHD>
C-119 (GR)
AC903865 AV
Connector: C-144 <RHD>
C-144 (GR)
Harness side
CAUTION
The strand end of the twist wire should be within
10 cm from the connector. For details refer to
.
AC209350
1
12
2
13
3
14
4
15
5
16
6
17
7
18
8
19
9
20
10
21
11
22
AC209350
1
12
2
13
3
14
4
15
5
16
6
17
7
18
8
19
9
20
10
21
11
22
AC
Short pin
When checking the joint connector, ensure that its
wiring harness side and its short pins are not dam-
aged.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector. Replace the
joint connector as necessary.
STEP 2. Resistance measurement at C-119 joint
connector (CAN1) and C-144 G and yaw rate
sensor connector.
CAUTION
A digital multimeter should be used. For details
refer to
CAUTION
The test wiring harness should be used. For
details refer to
.
AC903853
BQ
Connectors: C-119, C-144 <LHD>
C-119 (GR)
C-144 (GR)
C-119
Harness side
C-144
AC903868
CM
Connector: C-119 <RHD>
C-119 (GR)
AC903865 AV
Connector: C-144 <RHD>
C-144 (GR)
Harness side
(1) Disconnect joint connector (CAN1) and the G and
yaw rate sensor connector, and measure at the
wiring harness side.
(2) Turn the ignition switch to the LOCK (OFF)
TROUBLESHOOTING
CONTROLLER AREA NETWORK (CAN)
54C-117
position.
CAUTION
When measuring the resistance, disconnect the
negative battery terminal. For details refer to
.
(3) Ensure that the negative battery terminal is
disconnected.
AC204740
AC204740
AC204740
AC204740
Harness side: C-144
Harness side: C-119
HZ
Test harness
Test
harness
(4) Continuity between C-119 joint connector (CAN1)
terminal No.4 and C-144 G and yaw rate sensor
connector terminal No.2
OK: Continuity (2
Ω or less)
AC204740
Harness side: C-144
AC204740
AC204740
Harness side: C-119
AC204740
AC204740
AC204740IA
Test harness
Test
harness
(5) Continuity between C-119 joint connector (CAN1)
terminal No.15 and C-144 G and yaw rate sensor
connector terminal No.3
OK: Continuity (2
Ω or less)
CAUTION
Strictly observe the specified wiring harness
repair procedure. For details refer to
Q: Is the check result normal?
YES :
<All the resistances measure 2
Ω or less>
Power supply to the G and yaw rate sensor
may be suspected. Diagnose the G and yaw
rate sensor.
NO :
<Either or all of the resistances measure
more than 2
Ω> Repair the wiring harness
between joint connector (CAN1) and the G
and yaw rate sensor connector.
TROUBLESHOOTING
CONTROLLER AREA NETWORK (CAN)
54C-118
Diagnosis Item 10: Diagnose when the M.U.T.-III cannot receive the data sent by A/C-ECU. <vehicles
with automatic-A/C>
CAUTION
When servicing a CAN bus line, earth yourself by touching a metal object such as an unpainted water
pipe. If you fail to do, a component connected to the CAN bus line may be broken.
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