Mitsubishi Outlander (2013+). Manual - part 721

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-20

STEP 4. Check the CAN-C between joint 
connector (CAN1) and the CVT-ECU. Voltage 
measurement at joint connector (CAN1).

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

CAUTION

The test wiring harness should be used. For 
details refer to 

P.54C-5

.

(1) Disconnect joint connector (CAN1), and measure 

at the wiring harness side.

(2) Connect the negative battery terminal, and turn 

the ignition switch to the ON position.

(3) Voltage between joint connector (CAN1) terminal 

No.6 (CAN_H) and body earth

OK: 4.0 V or less

(4) Voltage between joint connector (CAN1) terminal 

No.17 (CAN_L) and body earth

OK: 4.0 V or less

(5) Disconnect the negative battery terminal.

Q: Is the check result normal?

YES : 

<4.0 V or less> Go to Step 7.

NO : 

<More than 4.0 V> Go to Step 5.

STEP 5. M.U.T.-III CAN bus diagnostics [CVT-ECU 
connector disconnected]
(1) Disconnect CVT-ECU connector, and diagnose 

by using the M.U.T.-III.

ACC00052

ACC00052

M.U.T.

: Red section on screen

JC

ETACS

KOS

AUDIO

SRS

OSS

ABS/ASC

CVT

ENGINE

EPS

SAS

AWC

MMCS

A/C

ETG

METER

Corner

JC

JC

AB

(2) Diagnose CAN-C, and check if M.U.T.-III screen 

is as shown in the illustration.

Q: Does M.U.T.-III screen correspond to the 

illustration?

YES : 

Repair the wiring harness between joint 

connector (CAN1) and the CVT-ECU 
connector.

NO : 

Check the CVT-ECU connector, and repair if 
necessary. If the CVT-ECU connector is in 
good condition, go to Step 6.

STEP 6. M.U.T.-III CAN bus diagnostics (retest the 
system)
Diagnose CAN-C, and check if M.U.T.-III screen 
shows normal state.

Q: Is the check result normal?

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 ).

NO : 

Check the CVT-ECU connector, and repair if 
necessary. If the CVT-ECU connector is in 
good condition, replace the CVT-ECU.

STEP 7. Check the CAN-C between joint 
connector (CAN1) and the EPS-ECU. Voltage 
measurement at joint connector (CAN1).

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

CAUTION

The test wiring harness should be used. For 
details refer to 

P.54C-5

.

(1) Disconnect joint connector (CAN1), and measure 

at the wiring harness side.

(2) Connect the negative battery terminal, and turn 

the ignition switch to the ON position.

(3) Voltage between joint connector (CAN1) terminal 

No.8 (CAN_H) and body earth

OK: 4.0 V or less

(4) Voltage between joint connector (CAN1) terminal 

No.19 (CAN_L) and body earth

OK: 4.0 V or less

(5) Disconnect the negative battery terminal.

Q: Is the check result normal?

YES : 

<4.0 V or less> Go to Step 10.

NO : 

<More than 4.0 V> Go to Step 8.

STEP 8. M.U.T.-III CAN bus diagnostics [EPS-ECU 
connector disconnected]
(1) Disconnect EPS-ECU connector, and diagnose 

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-21

by using the M.U.T.-III.

ACC00052

ACC00052

M.U.T.

: Red section on screen

JC

ETACS

KOS

AUDIO

SRS

OSS

ABS/ASC

CVT

ENGINE

EPS

SAS

AWC

MMCS

A/C

ETG

METER

Corner

JC

JC

AB

(2) Diagnose CAN-C, and check if M.U.T.-III screen 

is as shown in the illustration.

Q: Does M.U.T.-III screen correspond to the 

illustration?
YES : 

Repair the wiring harness between joint 

connector (CAN1) and the EPS-ECU 
connector.

NO : 

Check the EPS-ECU connector, and repair 
if necessary. If the EPS-ECU connector is in 
good condition, go to Step 9.

STEP 9. M.U.T.-III CAN bus diagnostics (retest the 
system)
Diagnose CAN-C, and check if M.U.T.-III screen 
shows normal state.

Q: Is the check result normal?

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 ).

NO : 

Check the EPS-ECU connector, and repair 
if necessary. If the EPS-ECU connector is in 
good condition, replace the EPS-ECU.

STEP 10. Check the CAN-C between joint 
connector (CAN1) and the ABS-ECU <vehicles 
without ASC> or ASC-ECU <vehicles with ASC>. 
Voltage measurement at joint connector (CAN1).

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

CAUTION

The test wiring harness should be used. For 
details refer to 

P.54C-5

.

(1) Disconnect joint connector (CAN1), and measure 

at the wiring harness side.

(2) Connect the negative battery terminal, and turn 

the ignition switch to the ON position.

(3) Voltage between joint connector (CAN1) terminal 

No.9 (CAN_H) and body earth

OK: 4.0 V or less

(4) Voltage between joint connector (CAN1) terminal 

No.20 (CAN_L) and body earth

OK: 4.0 V or less

(5) Disconnect the negative battery terminal.

Q: Is the check result normal?

YES : 

<4.0 V or less> Repair intermediate 

connector C-126, or the wiring harness 
between joint connector (CAN1) and the 
intermediate connector C-126.

NO : 

<More than 4.0 V> Go to Step 11.

STEP 11. M.U.T.-III CAN bus diagnostics 
[ABS-ECU <vehicles without ASC> or ASC-ECU 
<vehicles with ASC> connector disconnected]
(1) Disconnect ABS-ECU <vehicles without ASC> or 

ASC-ECU <vehicles with ASC> connector, and 
diagnose by using the M.U.T.-III.

ACC00052

ACC00052

M.U.T.

: Red section on screen

JC

ETACS

KOS

AUDIO

SRS

OSS

ABS/ASC

CVT

ENGINE

EPS

SAS

AWC

MMCS

A/C

ETG

METER

Corner

JC

JC

AB

(2) Diagnose CAN-C, and check if M.U.T.-III screen 

is as shown in the illustration.

Q: Does M.U.T.-III screen correspond to the 

illustration?
YES : 

Repair the wiring harness between joint 

connector (CAN1) and the ABS-ECU 
<vehicles without ASC> or ASC-ECU 
<vehicles with ASC> connector.

NO : 

Check the ABS-ECU <vehicles without 
ASC> or ASC-ECU <vehicles with ASC> 
connector, and repair if necessary. If the 
ABS-ECU <vehicles without ASC> or 
ASC-ECU <vehicles with ASC> connector is 
in good condition, go to Step 12.

STEP 12. M.U.T.-III CAN bus diagnostics (retest 
the system)
Diagnose CAN-C, and check if M.U.T.-III screen 
shows normal state.

Q: Is the check result normal?

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-22

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 ).

NO : 

Check the ABS-ECU <vehicles without 
ASC> or ASC-ECU <vehicles with ASC> 
connector, and repair if necessary. If the 
ABS-ECU <vehicles without ASC> or 
ASC-ECU <vehicles with ASC> connector is 
in good condition, replace the ABS-ECU 
<vehicles without ASC> or ASC-ECU 
<vehicles with ASC>.

STEP 13. Check the CAN-C between joint 
connector (CAN-HI) and the ETACS-ECU. Voltage 
measurement at joint connector (CAN-HI).

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

CAUTION

The test wiring harness should be used. For 
details refer to 

P.54C-5

.

(1) Disconnect joint connector (CAN-HI), and 

measure at the wiring harness side.

(2) Connect the negative battery terminal, and turn 

the ignition switch to the ON position.

(3) Voltage between joint connector (CAN-HI) 

terminal No.11 (CAN_H) and body earth

OK: 4.0 V or less

(4) Voltage between joint connector (CAN-HI) 

terminal No.22 (CAN_L) and body earth

OK: 4.0 V or less

(5) Disconnect the negative battery terminal.

CAUTION

Strictly observe the specified wiring harness 
repair procedure. For details refer to 

P.54C-5

.

Q: Is the check result normal?

YES <2WD> : 

<4.0 V or less> Go to Step 17.

YES <4WD> : 

<4.0 V or less> Go to Step 14.

NO  : 

<More than 4.0 V> Repair the wiring 
harness between joint connector (CAN-HI) 
and the ETACS-ECU connector.

STEP 14. Check the CAN-C between joint 
connector (CAN-HI) and the 4WD-ECU. Voltage 
measurement at joint connector (CAN-HI).

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

CAUTION

The test wiring harness should be used. For 
details refer to 

P.54C-5

.

(1) Disconnect joint connector (CAN-HI), and 

measure at the wiring harness side.

(2) Connect the negative battery terminal, and turn 

the ignition switch to the ON position.

(3) Voltage between joint connector (CAN-HI) 

terminal No.5 (CAN_H) and body earth

OK: 4.0 V or less

(4) Voltage between joint connector (CAN-HI) 

terminal No.16 (CAN_L) and body earth

OK: 4.0 V or less

(5) Disconnect the negative battery terminal.

CAUTION

Strictly observe the specified wiring harness 
repair procedure. For details refer to 

P.54C-5

.

Q: Is the check result normal?

YES : 

<4.0 V or less> Go to Step 17.

NO  : 

<More than 4.0 V> Go to Step 15.

STEP 15. M.U.T.-III CAN bus diagnostics 
[4WD-ECU connector disconnected]
(1) Disconnect 4WD-ECU connector, and diagnose 

by using the M.U.T.-III.

ACC00052

ACC00052

M.U.T.

: Red section on screen

JC

ETACS

KOS

AUDIO

SRS

OSS

ABS/ASC

CVT

ENGINE

EPS

SAS

AWC

MMCS

A/C

ETG

METER

Corner

JC

JC

AB

(2) Diagnose CAN-C, and check if M.U.T.-III screen 

is as shown in the illustration.

Q: Does M.U.T.-III screen correspond to the 

illustration?

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-23

YES : 

Check the intermediate connector, and 

repair if necessary. If the intermediate 
connector is in good condition, repair the 
wiring harness between joint connector 
(CAN-HI) and the 4WD-ECU connector.

NO : 

Check the 4WD-ECU connector, and repair 
if necessary. If the 4WD-ECU connector is 
in good condition, go to Step 16.

STEP 16. M.U.T.-III CAN bus diagnostics (retest 
the system)
Diagnose CAN-C, and check if M.U.T.-III screen 
shows normal state.

Q: Is the check result normal?

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 ).

NO : 

Check the 4WD-ECU connector, and repair 
if necessary. If the 4WD-ECU connector is 
in good condition, replace the 4WD-ECU.

STEP 17. Check the CAN-C between joint 
connector (CAN-HI) and the steering wheel 
sensor. Voltage measurement at joint connector 
(CAN-HI).

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

CAUTION

The test wiring harness should be used. For 
details refer to 

P.54C-5

.

(1) Disconnect joint connector (CAN-HI), and 

measure at the wiring harness side.

(2) Connect the negative battery terminal, and turn 

the ignition switch to the ON position.

(3) Voltage between joint connector (CAN-HI) 

terminal No.6 (CAN_H) and body earth

OK: 4.0 V or less

(4) Voltage between joint connector (CAN-HI) 

terminal No.17 (CAN_L) and body earth

OK: 4.0 V or less

(5) Disconnect the negative battery terminal.

CAUTION

Strictly observe the specified wiring harness 
repair procedure. For details refer to 

P.54C-5

.

Q: Is the check result normal?

YES : 

<4.0 V or less> Go to Step 20.

NO : 

<More than 4.0 V> Go to Step 18.

STEP 18. M.U.T.-III CAN bus diagnostics [steering 
wheel sensor connector disconnected]
(1) Disconnect steering wheel sensor connector, and 

diagnose by using the M.U.T.-III.

ACC00052

ACC00052

M.U.T.

: Red section on screen

JC

ETACS

KOS

AUDIO

SRS

OSS

ABS/ASC

CVT

ENGINE

EPS

SAS

AWC

MMCS

A/C

ETG

METER

Corner

JC

JC

AB

(2) Diagnose CAN-C, and check if M.U.T.-III screen 

is as shown in the illustration.

Q: Does M.U.T.-III screen correspond to the 

illustration?
YES : 

Repair the wiring harness between joint 

connector (CAN-HI) and the steering wheel 
sensor connector.

NO : 

Check the steering wheel sensor connector, 
and repair if necessary. If the steering wheel 
sensor connector is in good condition, go to 
Step 19.

STEP 19. M.U.T.-III CAN bus diagnostics (retest 
the system)
Diagnose CAN-C, and check if M.U.T.-III screen 
shows normal state.

Q: Is the check result normal?

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 ).

NO : 

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