Mitsubishi Outlander (2013+). Manual - part 722

 

  Index      Mitsubishi     Mitsubishi Outlander - service repair manual 2013 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  720  721  722  723   ..

 

 

Mitsubishi Outlander (2013+). Manual - part 722

 

 

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-24

STEP 20. Check the CAN-C between joint 
connector (CAN-HI) and the SRS-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.30 (CAN_H) and body earth

OK: 4.0 V or less

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

terminal No.29 (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 23.

NO : 

<More than 4.0 V> Go to Step 21.

STEP 21. M.U.T.-III CAN bus diagnostics 
[SRS-ECU connector disconnected]
(1) Disconnect SRS-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 (CAN-HI) and the SRS-ECU 
connector.

NO : 

Check the SRS-ECU connector, and repair 
if necessary. If the SRS-ECU connector is in 
good condition, go to Step 22.

STEP 22. 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 SRS-ECU connector, and repair 
if necessary. If the SRS-ECU connector is in 
good condition, replace the SRS-ECU.

STEP 23. Check the CAN-C between joint 
connector (CAN-HI) and the diagnosis connector. 
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.9 (CAN_H) and body earth

OK: Less than 1.0 V

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

terminal No.20 (CAN_L) and body earth

OK: Less than 1.0 V

(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?

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-25

YES : 

<Less than 1.0 V> Repair the intermediate 

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

NO : 

<1.0 V or more> Repair the diagnosis 
connector, or the wiring harness between 
joint connector (CAN-HI) and the diagnosis 
connector.

STEP 24. M.U.T.-III CAN bus diagnostics 
[engine-ECU connector disconnected]
(1) Disconnect engine-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 : 

Go to Step 26.

NO : 

Check the engine-ECU connector, and 
repair if necessary. If the engine-ECU 
connector is in good condition, go to Step 
25.

STEP 25. 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 engine-ECU connector, and 
repair if necessary. If the engine-ECU 
connector is in good condition, replace the 
engine-ECU.

STEP 26. M.U.T.-III CAN bus diagnostics 
[ETACS-ECU connector disconnected]
(1) Disconnect ETACS-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 : 

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, go to Step 
27.

STEP 27. 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 ETACS-ECU connector, and 
repair if necessary. If the ETACS-ECU 
connector is in good condition, replace the 
ETACS-ECU.

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-26

Diagnosis Item 3: Diagnose shorts in the earth to CAN-C.

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 SRS-ECU

• Malfunction of the steering wheel sensor

• Malfunction of the 4WD-ECU <4WD>

• Malfunction of the ABS-ECU <vehicles without 

ASC> or ASC-ECU <vehicles with ASC>

• Malfunction of the EPS-ECU

• Malfunction of the CVT-ECU

• Malfunction of the engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. Check the CAN-C. Resistance 
measurement at diagnosis 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 
that is defective.
(1) Disconnect engine-ECU connector and 

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

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 diagnosis connector 

terminal No.6 (CAN_H) and body earth

OK: 1 k

 or more

(4) Resistance between diagnosis connector 

terminal No.14 (CAN_L) and body earth

OK: 1 k

 or more

Q: Is the check result normal?

YES : 

<Both of the measurement results show 1 

k

Ω or more> Go to Step 24.

NO : 

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

Ω> 

Go to Step 2.

STEP 2. Check the CAN-C. Resistance 
measurement at C-126 intermediate 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

.

(1) Disconnect the intermediate connector, and 

measure at its female-side intermediate 
connector (at the front 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 C-126 intermediate 

connector terminal No.15 (CAN_H) and body 
earth

OK: 1 k

 or more

(4) Resistance between C-126 intermediate 

connector terminal No.16 (CAN_L) and body 
earth

OK: 1 k

 or more

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Go to Step 13.

NO : 

<Less than 1 k

Ω > Go to Step 3.

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-27

STEP 3. Check the CAN-C between joint 
connector (CAN1) and the engine-ECU. 
Resistance 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.

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 (CAN1) 

terminal No.10 (CAN_H) and body earth

OK: 1 k

 or more

(4) Resistance between joint connector (CAN2) 

terminal No.21 (CAN_L) and body earth

OK: 1 k

 or more

Q: Is the check result normal?

YES <CVT> : 

<1 k

Ω or more> Go to Step 4.

NO  : 

<Less than 1 k

Ω > Repair the wiring 

harness between joint connector (CAN1) 
and the engine-ECU connector.

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

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 (CAN1) 

terminal No.6 (CAN_H) and body earth

OK: 1 k

 or more

(4) Resistance between joint connector (CAN1) 

terminal No.17 (CAN_L) and body earth

OK: 1 k

 or more

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Go to Step 7.

NO : 

<Less than 1 k

Ω > 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 bus lines, 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.

 

 

 

 

 

 

 

Content   ..  720  721  722  723   ..