Mitsubishi Outlander XL. Manual — part 1153

(2)

Check the wiring harness between joint connector (CAN1)
C-103 (terminal No.8) and KOS-ECU connector C-102
(terminal No.1)

(3)

Check the wiring harness between joint connector (CAN1)
C-103 (terminal No.21) and KOS-ECU connector C-102
(terminal No.2)

Q:Is the wiring harness between joint connector (CAN1)

C-103 and KOS-ECU connector C-102 in good condition?

YES:

Check the power supply circuit of the KOS-ECU. Refer

to Group 42B, KOS-ECU - Diagnosis P.42B-110.

NO:

Repair the wiring harness between joint connector

(CAN1) C-103 and KOS-ECU connector C-102.

DIAGNOSTIC ITEM 16: Diagnose when the scan tool cannot receive the data sent by
WCM.

M15408300026USA0000010000

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.

CONTROLLER AREA NETWORK (CAN)

54D-95

DIAGNOSIS

CAN Communication Circuit

ETACS-ECU

INTERFACE
CIRCUIT

CAN DRIVE
CIRCUIT

A/C-ECU

COMBINATION
METER

SRS-ECU

WCM

KOS-ECU

NOTE

VEHICLES WITH WCM
VEHICLES WITH KOS

CAN DRIVE
CIRCUIT

CAN DRIVE
CIRCUIT

CAN DRIVE
CIRCUIT

JOINT CONNECTOR
(CAN1)

54D-96

CONTROLLER AREA NETWORK (CAN)

DIAGNOSIS

ZC6008750009

C-103

C-29

Connectors: C-29, C-103

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
connector (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.

The strand end of the twisted wire should be within 10 cm
(4 inches) from the connector. For details refer to P.54D-8.

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.

STEP 2. Check the wiring harness between joint connector
(CAN1) C-103 and WCM connector C-29.

Strictly observe the specified wiring harness repair
procedure. For details refer to P.54D-8.

(1)

Disconnect joint connector (CAN1) C-103 and WCM
connector C-301, 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)

(3)

Check the wiring harness between joint connector (CAN1)
C-103 (terminal No.16) and WCM connector C-29 (terminal
No.10)

CONTROLLER AREA NETWORK (CAN)

54D-97

DIAGNOSIS

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 - Diagnosis P.42C-71.

NO:

Repair the wiring harness between joint connector

(CAN1) C-103 and WCM connector C-29.

DIAGNOSTIC ITEM 17: Diagnose when the scan tool cannot receive the data sent by
SRS-ECU.

M15408300027USA0000010000

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.

54D-98

CONTROLLER AREA NETWORK (CAN)

DIAGNOSIS