Mitsubishi Outlander (2013+). Manual - part 728

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-48

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

Diagnosis Item 7: Diagnose shorts in the earth to CAN-C-Mid.

CAUTION

• When servicing a CAN bus line, earth yourself 

by touching a metal object such as an 
unpainted water pipe. If you fail to do, a com-
ponent connected to the CAN bus line may be 
broken.

• When the ETACS-ECU of vehicles without 

KOS is replaced, the encrypted code of the 
ignition key needs to be registered to the 
ETACS-ECU. (If the encrypted code is not reg-
istered, the engine cannot be started. Regis-
ter the encrypted code as described in 
GROUP 54A, Immobilizer System 

− How to 

Register Key ID .)

TROUBLE JUDGEMENT CONDITIONS

The M.U.T.-III judges the trouble when it is impossi-
ble to receive the periodically sent data and the volt-
age of CAN_H or CAN_L line is less than 1.0 V.

TROUBLESHOOTING HINTS

• Malfunction of the wiring harness

• Malfunction of the connector

• Malfunction of the ETACS-ECU

• Malfunction of the A/C-ECU

• Malfunction of the KOS-ECU <Vehicles with 

KOS>

• Malfunction of the OSS-ECU <Vehicles with 

OSS>

• Malfunction of the CAN box unit <vehicles with 

MMCS>

• Malfunction of the radio and CD player <vehicles 

with radio and CD player>

• Malfunction of the corner sensor/back sen-

sor-ECU <vehicles with reversing sensor sys-
tem>

• Malfunction of the electric tailgate control unit 

<vehicles with electric tailgate>

• Malfunction of the combination meter

DIAGNOSIS PROCEDURE

STEP 1. Check the CAN-C-Mid. Resistance 
measurement at ETACS-ECU connector.

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

.

NOTE: This inspection allows you to check that there 
is a short to earth in either CAN_H line or CAN_L 
line. Thus, in the following steps, check the 
CAN-C-Mid that is defective.
(1) Disconnect combination meter connector and 

ETACS-ECU connector, and measure the 
resistance at harness side of ETACS-ECU 
connector.

CAUTION

When measuring the resistance, disconnect the 
negative battery terminal. For details refer to 

P.54C-5

.

(2) Ensure that the negative battery terminal is 

disconnected.

(3) Resistance between ETACS-ECU connector 

terminal No.17 (CAN_H) and body earth

OK: 1 k

Ω or more

(4) Resistance between ETACS-ECU connector 

terminal No.16 (CAN_L) and body earth

OK: 1 k

Ω or more

Q: Is the check result normal?

YES : 

<Both of the measurement results show 1 

k

Ω or more> Go to Step 25.

NO : 

<Either of CAN_H line or CAN_L line the 
measurement results show less than 1 k

Ω> 

Go to Step 2.

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-49

STEP 2. Check the CAN-C-Mid between joint 
connector (CAN-LO) and the ETACS-ECU. 
Resistance measurement at joint connector 
(CAN-LO).

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-LO), and 

measure at the wiring harness side.

CAUTION

When measuring the resistance, disconnect the 
negative battery terminal. For details refer to 

P.54C-5

.

(2) Ensure that the negative battery terminal is 

disconnected.

(3) Resistance between joint connector (CAN-LO) 

terminal No.11 (CAN_H) and body earth

OK: 1 k

Ω or more

(4) Resistance between joint connector (CAN-LO) 

terminal No.22 (CAN_L) and body earth

OK: 1 k

Ω or more

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Go to Step 3.

NO : 

<Less than 1 k

Ω > Repair the wiring 

harness between joint connector (CAN-LO) 
and the ETACS-ECU connector.

STEP 3. Check the CAN-C-Mid between joint 
connector (CAN-LO) and the A/C-ECU. 
Resistance measurement at joint connector 
(CAN-LO).

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-LO), and 

measure at the wiring harness side.

CAUTION

When measuring the resistance, disconnect the 
negative battery terminal. For details refer to 

P.54C-5

.

(2) Ensure that the negative battery terminal is 

disconnected.

(3) Resistance between joint connector (CAN-LO) 

terminal No.6 (CAN_H) and body earth

OK: 1 k

Ω or more

(4) Resistance between joint connector (CAN-LO) 

terminal No.17 (CAN_L) and body earth

OK: 1 k

Ω or more

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Go to Step 6.

NO : 

<Less than 1 k

Ω > Go to Step 4.

STEP 4. M.U.T.-III CAN bus diagnostics [A/C-ECU 
connector disconnected]
(1) Disconnect A/C-ECU connector, and diagnose by 

using the M.U.T.-III.

ACC00053

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-Mid, 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-LO) and the A/C-ECU 
connector.

NO : 

Check the A/C-ECU connector, and repair if 
necessary. If the A/C-ECU connector is in 
good condition, go to Step 5.

STEP 5. M.U.T.-III CAN bus diagnostics (retest the 
system)
Diagnose CAN-C-Mid, 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 A/C-ECU connector, and repair if 
necessary. If the A/C-ECU connector is in 
good condition, replace the A/C-ECU.

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-50

STEP 6. Check the CAN-C-Mid between joint 
connector (CAN-LO) and the electric tailgate 
control unit <vehicles with electric tailgate>. 
Resistance measurement at joint connector 
(CAN-LO).

NOTE: Steps 6 to 8 are only for vehicles with electric 
tailgate. On vehicles without it, go to Step 9.

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-LO), and 

measure at the wiring harness side.

CAUTION

When measuring the resistance, disconnect the 
negative battery terminal. For details refer to 

P.54C-5

.

(2) Ensure that the negative battery terminal is 

disconnected.

(3) Resistance between joint connector (CAN-LO) 

terminal No.8 (CAN_H) and body earth

OK: 1 k

Ω or more

(4) Resistance between joint connector (CAN-LO) 

terminal No.19 (CAN_L) and body earth

OK: 1 k

Ω or more

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Go to Step 9.

NO : 

<Less than 1 k

Ω > Go to Step 7.

STEP 7. M.U.T.-III CAN bus diagnostics [electric 
tailgate control unit connector disconnected]
(1) Disconnect electric tailgate control unit connector, 

and diagnose by using the M.U.T.-III.

ACC00053

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-Mid, 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 : 

Check the intermediate connector, and 

repair if necessary. If the intermediate 
connector is in good condition, repair the 
wiring harness between joint connector 
(CAN-LO) and the electric tailgate control 
unit connector.

NO : 

Check the electric tailgate control unit 
connector, and repair if necessary. If the 
electric tailgate control unit connector is in 
good condition, go to Step 8.

STEP 8. M.U.T.-III CAN bus diagnostics (retest the 
system)
Diagnose CAN-C-Mid, 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 electric tailgate control unit 
connector, and repair if necessary. If the 
electric tailgate control unit connector is in 
good condition, replace the electric tailgate 
control unit.

STEP 9. Check the CAN-C-Mid between joint 
connector (CAN-LO) and the corner sensor/back 
sensor-ECU <vehicles with reversing sensor 
system>. Resistance measurement at joint 
connector (CAN-LO).

NOTE: Steps 9 to 11 are only for vehicles with 
reversing sensor system. On vehicles without it, go 
to Step 12.

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-LO), and 

measure at the wiring harness side.

CAUTION

When measuring the resistance, disconnect the 
negative battery terminal. For details refer to 

P.54C-5

.

(2) Ensure that the negative battery terminal is 

disconnected.

(3) Resistance between joint connector (CAN-LO) 

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-51

terminal No.4 (CAN_H) and body earth

OK: 1 k

Ω or more

(4) Resistance between joint connector (CAN-LO) 

terminal No.15 (CAN_L) and body earth

OK: 1 k

Ω or more

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Go to Step 12.

NO : 

<Less than 1 k

Ω > Go to Step 10.

STEP 10. M.U.T.-III CAN bus diagnostics [corner 
sensor/back sensor-ECU connector 
disconnected]
(1) Disconnect corner sensor/back sensor-ECU 

connector, and diagnose by using the M.U.T.-III.

ACC00053

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-Mid, 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-LO) and the corner 
sensor/back sensor-ECU connector.

NO : 

Check the corner sensor/back sensor-ECU 
connector, and repair if necessary. If the 
corner sensor/back sensor-ECU connector 
is in good condition, go to Step 11.

STEP 11. M.U.T.-III CAN bus diagnostics (retest 
the system)
Diagnose CAN-C-Mid, 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 corner sensor/back sensor-ECU 
connector, and repair if necessary. If the 
corner sensor/back sensor-ECU connector 
is in good condition, replace the corner 
sensor/back sensor-ECU.

STEP 12. Check the CAN-C-Mid between joint 
connector (CAN-LO) and the radio and CD player. 
Resistance measurement at joint connector 
(CAN-LO).

NOTE: Steps 12 to 14 are only for vehicles with radio 
and CD player system. On vehicles without it, go to 
Step 15.

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-LO), and 

measure at the wiring harness side.

CAUTION

When measuring the resistance, disconnect the 
negative battery terminal. For details refer to 

P.54C-5

.

(2) Ensure that the negative battery terminal is 

disconnected.

(3) Resistance between joint connector (CAN-LO) 

terminal No.7 (CAN_H) and body earth

OK: 1 k

Ω or more

(4) Resistance between joint connector (CAN-LO) 

terminal No.18 (CAN_L) and body earth

OK: 1 k

Ω or more

CAUTION

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

P.54C-5

.

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Go to Step 15.

NO : 

<Less than 1 k

Ω > Go to Step 13.

STEP 13. M.U.T.-III CAN bus diagnostics [radio 
and CD player connector disconnected]
(1) Disconnect radio and CD player connector, and