Mitsubishi Outlander GS45X. Manual — part 1292
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-113
DIAGNOSTIC ITEM 17: Diagnose when the scan tool cannot receive the data sent by WCM <vehicles
without KOS>.
CAUTION
When servicing a CAN bus line, ground yourself by touching a metal object such as an unpainted
water pipe. If you fail to do so, a component connected to the CAN bus line may be damaged.
CAN Communication Circuit
ETACS-ECU
INTERFACE
CIRCUIT
CAN DRIVE
CIRCUIT
A/C-ECU
COMBINATION METER
CPU
SRS-ECU
WCM
KOS-ECU
NOTE
VEHICLES WITH WCM
VEHICLES WITH KOS
CAN
TRANSCEIVER
CIRCUIT
CAN DRIVE
CIRCUIT
CAN DRIVE
CIRCUIT
JOINT CONNECTOR
(CAN1)
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-114
.
FUNCTION
If the scan tool MB991958 cannot communicate with
the WCM, this diagnosis result will be set.
.
TROUBLE JUDGMENT CONDITIONS
If a communication flag is not set for the WCM, the
ETACS-ECU determines that there is a failure.
.
TROUBLESHOOTING HINTS
• Malfunction of the connector [joint connector
(CAN1), WCM connector improperly connected]
• Malfunction of the wiring harness [open circuit
between the WCM connector and the joint con-
nector (CAN1), power supply circuit to the WCM]
• Malfunction of the WCM
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB992006: Extra Fine Probe
STEP 1. Check joint connector (CAN1) C-103 and WCM
connector C-29 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 joint connector (CAN1) C-103 and WCM connector
C-29 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.
AC901075AW
Connectors: C-29, C-103
C-29
C-103
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-115
STEP 2. Check the wiring harness between joint connector
(CAN1) C-103 and WCM connector C-29 for open circuit.
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
(1) Disconnect joint connector (CAN1) C-103 and WCM
connector C-29, and check the wiring harness.
(2) Check the wiring harness between joint connector (CAN1)
C-103 (terminal No.5) and WCM connector C-29 (terminal
No.11)
OK: Continuity exists (2 ohms or less)
(3) Check the wiring harness between joint connector (CAN1)
C-103 (terminal No.16) and WCM connector C-29 (terminal
No.2)
OK: Continuity exists (2 ohms or less)
Q: Is the wiring harness between joint connector (CAN1)
C-103 and WCM connector C-29 in good condition?
YES : Check the power supply circuit of the WCM. Refer to
GROUP 42C, WCM
NO : Repair the wiring harness between joint connector
(CAN1) C-103 and WCM connector C-29.
AC709707
AC709707 MA
Harness side: C-103
Harness side: C-29
Test harness
Test harness
AC709707 MB
Harness side: C-103
Harness side: C-29
Test
harness
Test
harness
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-116
DIAGNOSTIC ITEM 18: Diagnose when the scan tool cannot receive the data sent by SRS-ECU.
CAUTION
When servicing a CAN bus line, ground yourself by touching a metal object such as an unpainted
water pipe. If you fail to do so, a component connected to the CAN bus line may be damaged.
CAN Communication Circuit
ETACS-ECU
INTERFACE
CIRCUIT
CAN DRIVE
CIRCUIT
A/C-ECU
COMBINATION METER
CPU
SRS-ECU
WCM
KOS-ECU
NOTE
VEHICLES WITH WCM
VEHICLES WITH KOS
CAN
TRANSCEIVER
CIRCUIT
CAN DRIVE
CIRCUIT
CAN DRIVE
CIRCUIT
JOINT CONNECTOR
(CAN1)
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