Mitsubishi Outlander XL. Manual — part 1154

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)

CONTROLLER AREA NETWORK (CAN)

54D-99

DIAGNOSIS

ZC6008760000

Connector: C-28

C-28 (Y)

ZC6008750010

Connector: C-103

FUNCTION
If the scan tool MB991958 cannot communicate with
the SRS-ECU, this diagnosis result will be set.

TROUBLE JUDGMENT CONDITIONS
If a communication flag is not set for the SRS-ECU,
the ETACS-ECU determines that there is a failure.

TROUBLESHOOTING HINTS

｠

Malfunction of the connector [joint connector
(CAN1),

SRS-ECU

connector

improperly

connected]

｠

Malfunction of the wiring harness [open circuit
between the SRS-ECU connector and the joint
connector (CAN1), power supply circuit to the SRS-
ECU]

｠

Malfunction of the SRS-ECU

DIAGNOSIS

Required Special Tools:

｠

MB991223: Harness Set

｠

MB992006: Extra Fine Probe

STEP 1. Check joint connector (CAN1) C-103 and SRS-ECU
connector C-28 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 SRS-ECU

connector C-28 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 SRS-ECU connector C-28.

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

(1)

Disconnect joint connector (CAN1) C-103 and SRS-ECU
connector C-301, and check the wiring harness.

54D-100

CONTROLLER AREA NETWORK (CAN)

DIAGNOSIS

(2)

Check the wiring harness between joint connector (CAN1)
C-103 (terminal No.1) and SRS-ECU connector C-28
(terminal No.10)

(3)

Check the wiring harness between joint connector (CAN1)
C-103 (terminal No.12) and SRS-ECU connector C-28
(terminal No.9)

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

C-103 and SRS-ECU connector C-28 in good condition?

YES:

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

to Group 52B, SRS - Troubleshooting P.52B-309.

NO:

Repair the wiring harness between joint connector

(CAN1) C-103 and SRS-ECU connector C-28.

DIAGNOSTIC ITEM 18: Diagnose when the scan tool cannot receive the data sent by
occupant classification-ECU.

M15408300028USA0000010000

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-101

DIAGNOSIS

CAN Communication Circuit

ETACS-ECU

INTERFACE
CIRCUIT

INTERFACE
CIRCUIT

CAN DRIVE
CIRCUIT

HANDS FREE
MODULE

OCCUPANT
CLASSIFICATION-
ECU

SATELLITE
RADIO
TUNER

RADIO AND CD
PLAYER OR CD
CHANGER

NOTE

VEHICLES WITHOUT MITSUBISHI MULTI-COMMUNICATION SYSTEM (MMCS)
VEHICLES WITH MITSUBISHI MULTI-COMMUNICATION SYSTEM (MMCS)

CAN
TRANSCEIVER
CIRCUIT

CAN BOX UNIT

JOINT CONNECTOR
(CAN1)

54D-102

CONTROLLER AREA NETWORK (CAN)

DIAGNOSIS