Mitsubishi Outlander GS45X. Manual - part 1273

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-37

STEP 3. Check the wiring harness between joint connector 
(CAN2) C-04 and AWD-ECU connector C-128 for line-to-line 
short. Measure the resistance at joint connector (CAN2) 
C-04.
(1) Disconnect joint connector (CAN2), and check that there is 

continuity at the harness side of joint connector (CAN2).

(2) Check that there is continuity between joint connector 

(CAN2) terminals 5 and 16.

OK: No continuity

Q: Is the check result normal?

YES : Go to Step 5.
NO :  Go to Step 10.

STEP 4. Check the wiring harness between joint connector 
(CAN2) C-04 and AWC-ECU connector C-139 for line-to-line 
short. Measure the resistance at joint connector (CAN2) 
C-04.
(1) Disconnect joint connector (CAN2), and check that there is 

continuity at the harness side of joint connector (CAN2).

(2) Check that there is continuity between joint connector 

(CAN2) terminals 5 and 16.

OK: No continuity

Q: Is the check result normal?

YES : Go to Step 5.
NO :  Go to Step 11.

STEP 5. Check the wiring harness between joint connector 
(CAN3) C-01 and ECM connector B-11 for line-to-line short. 
Measure the resistance at joint connector (CAN3) C-01.
(1) Disconnect joint connector (CAN3), and check that there is 

continuity at the harness side of joint connector (CAN3).

(2) Check that there is continuity between joint connector 

(CAN3) terminals 4 and 15.

OK: No continuity

Q: Is the check result normal?

YES : Go to Step 6.
NO :  Go to Step 12.

AC703868AC

Test harness

Test harness

Harness side: C-04

AC703868AC

Test harness

Test harness

Harness side: C-04

AC703868AD

Test harness

Harness side: C-01

Test harness

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-38

STEP 6. Check the wiring harness between joint connector 
(CAN3) C-01 and ABS-ECU connector A-01 <vehicles 
without ASC> or ASC-ECU connector A-02 <vehicles with 
ASC> for line-to-line short. Measure the resistance at joint 
connector (CAN3) C-01.
(1) Disconnect joint connector (CAN3), and check that there is 

continuity at the harness side of joint connector (CAN3).

(2) Check that there is continuity between joint connector 

(CAN3) terminals 6 and 19.

OK: No continuity

Q: Is the check result normal?

YES <CVT, A/T> : Go to Step 7.
YES <M/T> : Go to Step 8.
NO  :  Go to Step 13.

STEP 7. Check the wiring harness between joint connector 
(CAN3) C-01 and TCM connector C-38 for line-to-line short. 
Measure the resistance at joint connector (CAN3) C-01.
(1) Disconnect joint connector (CAN3), and check that there is 

continuity at the harness side of joint connector (CAN3).

(2) Check that there is continuity between joint connector 

(CAN3) terminals 7 and 20.

OK: No continuity

Q: Is the check result normal?

YES : Go to Step 8.
NO :  Go to Step 14.

STEP 8. Check the wiring harness between joint connector 
(CAN2) C-04 and ETACS-ECU connector C-301 for 
line-to-line short. Measure the resistance at joint 
connector (CAN2) C-04.
(1) Disconnect joint connector (CAN2), and check that there is 

continuity at the harness side of joint connector (CAN2).

(2) Check that there is continuity between joint connector 

(CAN2) terminals 6 and 19.

OK: No continuity

Q: Is the check result normal?

YES : Check intermediate connector C-33, and repair if 

necessary. If the intermediate connector is in good 
condition, repair the wiring harness between joint 
connector (CAN2) C-04 and joint connector (CAN3) 
C-01.

NO :  Go to Step 15.

AC703868 AE

Test 
harness

Test 
harness

Harness side: C-01

AC703868 AF

Test 
harness

Test 
harness

Harness side: C-01

AC703868AG

Test 
harness

Test 
harness

Harness side: C-04

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-39

STEP 9. Using scan tool MB991958, diagnose the CAN bus 
line. (checking the steering wheel sensor for internal 
short)

CAUTION

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

P.54C-7

.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Disconnect steering wheel sensor connector C-209.
(2) Connect scan tool MB991958 to the data link connector.
(3) Turn the ignition switch to the "ON" position.

(4) Diagnose CAN bus lines, and check if the scan tool 

MB991958 screen is as shown in the figure.

OK: The display of the scan tool MB991958 is as 
shown in the figure.

Q: Does scan tool MB991958 screen correspond to the 

illustration?
YES : Repair the wiring harness between steering wheel 

sensor connector C-209 and joint connector (CAN2) 
C-04.

NO :  Check steering wheel sensor connector C-209, and 

repair if necessary. If the steering wheel sensor 
connector is in good condition, replace the steering 
wheel sensor.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

AB

ACA02847AC

: Red section on screen

M.U.T.

F.A.S.T.
/WCM

SRS

OCM

A/C

AUDIO

MMCS

Sat Radio

METER

JC

ETACS

JC

JC

SAS

AWC

ABS/ASC

AT/CVT

ENGINE

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-40

STEP 10. Using scan tool MB991958, diagnose the CAN 
bus line. (checking the AWD-ECU for internal short)

CAUTION

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

P.54C-7

.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Disconnect AWD-ECU connector C-128.
(2) Connect scan tool MB991958 to the data link connector.
(3) Turn the ignition switch to the "ON" position.

(4) Diagnose CAN bus lines, and check if the scan tool 

MB991958 screen is as shown in the figure.

OK: The display of the scan tool MB991958 is as 
shown in the figure.

Q: Does scan tool MB991958 screen correspond to the 

illustration?
YES : Check intermediate connectors C-31 and C-138, and 

repair if necessary. If the intermediate connector is in 
good condition, repair the wiring harness between 
AWD-ECU connector C-128 and joint connector 
(CAN2) C-04.

NO :  Check AWD-ECU connector C-128, and repair if 

necessary. If the AWD-ECU connector is in good 
condition, replace the AWD-ECU.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

AB

ACA02847AC

: Red section on screen

M.U.T.

F.A.S.T.
/WCM

SRS

OCM

A/C

AUDIO

MMCS

Sat Radio

METER

JC

ETACS

JC

JC

SAS

AWC

ABS/ASC

AT/CVT

ENGINE