Mitsubishi Outlander GS45X. Manual - part 1290

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-105

.

FUNCTION

If a failure is present in the wiring harness between 
the joint connector (CAN2) and the joint connector 
(CAN3), this diagnosis result will be set.

.

TROUBLE JUDGMENT CONDITIONS

If a communication flag is not set for some of the 
ECUs on the CAN-C line, the ETACS-ECU deter-
mines that there is a failure.

.

TROUBLESHOOTING HINTS

• Malfunction of the connector [joint connector 

(CAN2), joint connector (CAN3) or intermediate 
connector failed]

• Malfunction of the wiring harness [open circuit 

between joint connector (CAN2) and joint con-
nector (CAN3)]

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

STEP 1. Check joint connector (CAN2) C-04, joint 
connector (CAN3) C-01 and intermediate connector C-33 
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 

P.54C-7

.

Q: Are joint connector (CAN2) C-04, joint connector (CAN3) 

C-01 and intermediate connector C-33 in good 
condition?
YES : Go to Step 2.
NO :  Repair the damaged parts.

AC901075 AT

Connectors: C-01, C-04, C-33

C-01

C-04

C-33

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-106

STEP 2. Check the wiring harness between joint connector 
(CAN2) C-04 and joint connector (CAN3) C-01 for open 
circuit.

CAUTION

Strictly observe the specified wiring harness repair proce-
dure. For details refer to 

P.54C-7

.

(1) Disconnect joint connector (CAN2) C-04 and joint connector 

(CAN3) C-01, and check the wiring harness.

(2) Check the wiring harness between joint connector (CAN2) 

C-04 (terminal No.7) and joint connector (CAN3) C-01 
(terminal No.5)

OK: Continuity exists (2 ohms or less)

(3) Check the wiring harness between joint connector (CAN2) 

C-04 (terminal No.20) and joint connector (CAN3) C-01 
(terminal No.16)

OK: Continuity exists (2 ohms or less)

Q: Is the wiring harness between joint connector (CAN2) 

C-04 and joint connector (CAN3) C-01 in good 
condition?
YES : The trouble can be an intermittent malfunction (Refer 

to GROUP 00, How to use 
Troubleshooting/inspection Service Points 

− How to 

Cope with Intermittent Malfunction 

P.00-15

).

NO :  Repair the wiring harness between joint connector 

(CAN2) C-04 and joint connector (CAN3) C-01.

AC709707NJ

Test 
harness

Harness side: C-01

Test 
harness

Harness side: C-04

AC709707NK

Harness side: C-01

Harness side: C-04

Test harness

Test 
harness

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-107

DIAGNOSTIC ITEM 15: Diagnose when the scan tool cannot receive the data sent by combination 
meter.

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-108

.

FUNCTION

If the scan tool MB991958 cannot communicate with 
the combination meter, this diagnosis result will be 
set.

.

TROUBLE JUDGMENT CONDITIONS

If a communication flag is not set for the combination 
meter, the ETACS-ECU determines that there is a 
failure.

.

TROUBLESHOOTING HINTS

• Malfunction of the connector [joint connector 

(CAN1), combination meter connector improperly 
connected]

• Malfunction of the wiring harness [open circuit 

between the combination meter connector and 
the joint connector (CAN1), power supply circuit 
to the combination meter]

• Malfunction of the combination meter

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

STEP 1. Check joint connector (CAN1) C-103 and 
combination meter connector C-03 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 

P.54C-7

.

Q: Are joint connector (CAN1) C-103 and combination 

meter connector C-03 in good condition?
YES : Go to Step 2.
NO :  Repair the damaged parts.

AC901075AU

Connectors: C-03, C-103

C-103

C-03