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