Mitsubishi Outlander GS45X. Manual - part 1285

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-85

DIAGNOSTIC ITEM 8: Diagnose when the scan tool cannot receive the data sent by steering wheel 
sensor <Vehicles with ASC>.

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

STEERING WHEEL 
SENSOR

AWD-ECU

AWC-ECU

JOINT CONNECTOR 
(CAN2)

JOINT CONNECTOR 
(CAN3)

TRANSAXLE 
CONTROL MODULE

ASC-ECU

ABS-ECU

ENGINE CONTROL 
MODULE

:VEHICLES WITHOUT ASC

NOTE

:VEHICLES WITH ASC

:6A/T

:CVT

:ELECTRONIC CONTROLLED AWD
:S-AWC

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-86

.

FUNCTION

If the scan tool MB991958 cannot communicate with 
the steering wheel sensor, this diagnosis result will 
be set.

.

TROUBLE JUDGMENT CONDITIONS

If a communication flag is not set for the steering 
wheel sensor, the ETACS-ECU determines that there 
is a failure.

.

TROUBLESHOOTING HINTS

• Malfunction of the connector [joint connector 

(CAN2) or steering wheel sensor connector 
improperly connected]

• Malfunction of the wiring harness [open circuit 

between the steering wheel sensor and the joint 
connector (CAN2), power supply circuit to the 
steering wheel sensor]

• Malfunction of the steering wheel sensor

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

STEP 1. Check joint connector (CAN2) C-04 and steering 
wheel sensor connector C-209 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 and steering wheel 

sensor connector C-209 in good condition?
YES : Go to Step 2.
NO :  Repair the damaged parts.

AC901075 AP

Connector: C-04

AC900844AV

Connector: C-209

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-87

STEP 2. Check the wiring harness between joint connector 
(CAN2) C-04 and steering wheel sensor connector C-209 
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 steering wheel 

sensor connector C-209, and check the wiring harness.

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

C-04 (terminal No.4) and steering wheel sensor connector 
C-209 (terminal No.3)

OK: Continuity exists (2 ohms or less)

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

C-04 (terminal No.15) and steering wheel sensor connector 
C-209 (terminal No.4)

OK: Continuity exists (2 ohms or less)

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

C-04 and steering wheel sensor connector C-209 in 
good condition?
YES : Check the power supply circuit of the steering wheel 

sensor. Refer to GROUP 35C, Troubleshooting 

P.35C-216

.

NO :  Repair the wiring harness between joint connector 

(CAN2) C-04 and steering wheel sensor connector 
C-209.

AC709707

AC709707

Harness side: C-04

MX

Harness side: C-209

TEST HARNESS

TEST HARNESS

AC709707

Harness side: C-04

MY

Harness side: C-209

TEST 
HARNESS

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-88

DIAGNOSTIC ITEM 9: Diagnose when the scan tool cannot receive the data sent by TCM <CVT, A/T>.

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

STEERING WHEEL 
SENSOR

AWD-ECU

AWC-ECU

JOINT CONNECTOR 
(CAN2)

JOINT CONNECTOR 
(CAN3)

TRANSAXLE 
CONTROL MODULE

ASC-ECU

ABS-ECU

ENGINE CONTROL 
MODULE

:VEHICLES WITHOUT ASC

NOTE

:VEHICLES WITH ASC

:6A/T

:CVT

:ELECTRONIC CONTROLLED AWD
:S-AWC