Mitsubishi Outlander XL. Manual - part 1148

CAN Communication Circuit

ETACS-ECU

INTERFACE
CIRCUIT

CAN DRIVE
CIRCUIT

STEERING WHEEL
SENSOR

AWD-ECU

JOINT CONNECTOR
(CAN2)

JOINT CONNECTOR
(CAN3)

TRANSMISSION
CONTROL
MODULE

ASC-ECU

ABS-ECU

ENGINE
CONTROL
MODULE

NOTE

VEHICLES WITHOUT ASC
VEHICLES WITH ASC

CONTROLLER AREA NETWORK (CAN)

54D-75

DIAGNOSIS

ZC6008710001

Connector: A-01

A-01 (B)

ZC6008750005

Connector: C-01

 

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

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

TROUBLESHOOTING HINTS

｠

Malfunction  of  the  connector  [joint  connector
(CAN3)  or  ABS-ECU  connector  improperly
connected]

｠

Malfunction  of  the  wiring  harness  [open  circuit
between  the  ABS-ECU  and  the  joint  connector
(CAN3), power supply circuit to the ABS-ECU]

｠

Malfunction of the ABS-ECU

DIAGNOSIS

Required Special Tools:

｠

MB991223: Harness Set

｠

MB992006: Extra Fine Probe

STEP 1. Check joint connector (CAN3) C-01 and ABS-ECU
connector A-01 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 (CAN3) C-01 and ABS-ECU connector

A-01 in good condition?

YES:

 Go to Step 2.

NO:

 Repair the damaged parts.

STEP 2. Check the wiring harness between joint connector
(CAN3) C-01 and ABS-ECU connector A-01.

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

(1)

Disconnect  joint  connector  (CAN3)  C-01  and  ABS-ECU
connector A-01, and check the wiring harness.

(2)

Check the wiring harness between joint connector (CAN3)
C-01 (terminal No.6) and ABS-ECU connector A-01 (terminal
No.4)

(3)

Check the wiring harness between joint connector (CAN3)
C-01  (terminal  No.19)  and  ABS-ECU  connector  A-01
(terminal No.6)

54D-76

CONTROLLER AREA NETWORK (CAN)

DIAGNOSIS

Q:Is  the  wiring  harness  between  joint  connector  (CAN3)

C-01 and ABS-ECU connector A-01 in good condition?

YES:

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

to Group 35B, Troubleshooting P.35B-139.

NO:

 Repair the wiring harness between joint connector

(CAN3) C-01 and ABS-ECU connector A-01.

DIAGNOSTIC ITEM 10: Diagnose when the scan tool cannot receive the data sent by
ASC-ECU.

M15408300015USA0000010000

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-77

DIAGNOSIS

CAN Communication Circuit

ETACS-ECU

INTERFACE
CIRCUIT

CAN DRIVE
CIRCUIT

STEERING WHEEL
SENSOR

AWD-ECU

JOINT CONNECTOR
(CAN2)

JOINT CONNECTOR
(CAN3)

TRANSMISSION
CONTROL
MODULE

ASC-ECU

ABS-ECU

ENGINE
CONTROL
MODULE

NOTE

VEHICLES WITHOUT ASC
VEHICLES WITH ASC

54D-78

CONTROLLER AREA NETWORK (CAN)

DIAGNOSIS