Mitsubishi Outlander (2013+). Manual - part 725

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-36

terminal Nos.3 and 4

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> Repair the wiring harness 

between joint connector (CAN1) and the 
EPS-ECU connector.

NO : 

<Less than 1 k

Ω> Check the EPS-ECU 

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

STEP 10. 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 the connector, and measure at the 

wiring harness side.

(2) Turn the ignition switch to the LOCK (OFF) 

position.

CAUTION

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

P.54C-5

.

(3) Ensure that the negative battery terminal is 

disconnected.

(4) Resistance between joint connector (CAN1) 

terminal Nos.9 and 20

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> Repair the wiring harness 

between joint connector (CAN1) and C-126 
intermediate connector.

NO : 

<Less than 1 k

Ω> Go to Step 11.

STEP 11. Resistance measurement at ABS-ECU 
<vehicles without ASC> or ASC-ECU <vehicles 
with ASC> connector.

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

(1) Remove the ABS-ECU <vehicles without ASC> 

or ASC-ECU <vehicles with ASC>, and measure 
at the equipment side.

(2) Resistance between ABS-ECU <vehicles without 

ASC> or ASC-ECU <vehicles with ASC> 
connector terminal Nos.10 and 11

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> Repair the wiring harness 

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

NO : 

<Less than 1 k

Ω> 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 12. Connector check: joint connector 
(CAN-HI)

CAUTION

The strand end of the twist wire should be within 
10 cm from the connector. For details refer to 

P.54C-5

.

AC209350

1

12

2

13

3

14

4

15

5

16

6

17

7

18

8

19

9

20

10

21

11

22

AC209350

1

12

2

13

3

14

4

15

5

16

6

17

7

18

8

19

9

20

10

21

11

22

AC

Short pin

When checking the joint connector, ensure that its 
wiring harness side and its short pins are not dam-
aged.

Q: Is the check result normal?

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-37

YES : 

Go to Step 13.

NO : 

Repair a defective connector or replace the 
joint connector.

STEP 13. Resistance 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) Turn the ignition switch to the LOCK (OFF) 

position.

CAUTION

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

P.54C-5

.

(3) Ensure that the negative battery terminal is 

disconnected.

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

terminal Nos.11 and 22

OK: 120 

± 20 Ω

CAUTION

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

P.54C-5

.

Q: Is the check result normal?

YES <2WD> : 

<Within 120 

± 20 Ω> Go to Step 17.

YES <4WD> : 

<Within 120 

± 20 Ω> Go to Step 15.

NO  : 

<Not within 120 

± 20 Ω> Go to Step 14.

STEP 14. Resistance measurement at 
ETACS-ECU connector.

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

(1) Remove the ETACS-ECU, and measure at the 

equipment side.

(2) Resistance at ETACS-ECU connector terminal 

Nos.18 and 19

OK: 120 

± 20 Ω

Q: Is the check result normal?

YES : 

<Within 120 

± 20 Ω> Repair the wiring 

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

NO : 

<Not within 120 

± 20 Ω> Check the 

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

STEP 15. 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 (CAN-HI), and 

measure at the wiring harness side.

(2) Turn the ignition switch to the LOCK (OFF) 

position.

CAUTION

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

P.54C-5

.

(3) Ensure that the negative battery terminal is 

disconnected.

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

terminal Nos.5 and 16

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 17.

NO : 

<Less than 1 k

Ω> Go to Step 16.

STEP 16. Resistance measurement at 4WD-ECU 
connector.

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

(1) Remove the 4WD-ECU, and measure at the 

equipment side.

(2) Resistance at 4WD-ECU connector terminal 

Nos.5 and 13

OK: 1 k

Ω or more

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Check 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 : 

<Less than 1 k

Ω> Check the 4WD-ECU 

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

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-38

STEP 17. Resistance 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) Turn the ignition switch to the LOCK (OFF) 

position.

CAUTION

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

P.54C-5

.

(3) Ensure that the negative battery terminal is 

disconnected.

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

terminal Nos.6 and 17

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 19.

NO : 

<Less than 1 k

Ω> Go to Step 18.

STEP 18. Resistance measurement at steering 
wheel sensor connector.

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

(1) Remove the steering wheel sensor, and measure 

at the equipment side.

(2) Resistance at steering wheel sensor connector 

terminal Nos.3 and 4

OK: 1 k

Ω or more

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Repair the wiring harness 

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

NO : 

<Less than 1 k

Ω> 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.

STEP 19. Resistance 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) Turn the ignition switch to the LOCK (OFF) 

position.

CAUTION

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

P.54C-5

.

(3) Ensure that the negative battery terminal is 

disconnected.

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

terminal Nos.8 and 19

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 21.

NO : 

<Less than 1 k

Ω> Go to Step 20.

STEP 20. Resistance measurement at SRS-ECU 
connector.

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

(1) Remove the SRS-ECU, and measure at the 

equipment side.

(2) Resistance at SRS-ECU connector terminal 

Nos.29 and 30

OK: 1 k

Ω or more

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Repair the wiring harness 

between joint connector (CAN-HI) and the 
SRS-ECU connector.

NO : 

<Less than 1 k

Ω> Check the SRS-ECU 

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

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-39

STEP 21. Resistance 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 the joint connector (CAN-HI), and 

measure at the wiring harness side.

(2) Turn the ignition switch to the LOCK (OFF) 

position.

CAUTION

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

P.54C-5

.

(3) Ensure that the negative battery terminal is 

disconnected.

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

terminal Nos.9 and 20

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> Repair the wiring harness 

between joint connector (CAN-HI) and the 
C-126 intermediate connector.

NO : 

<Less than 1 k

Ω> Check the diagnosis 

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

Diagnosis Item 5: Communication with no ECUs is possible (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 component con-
nected to the CAN bus line may be broken.

TROUBLESHOOTING HINTS

• Malfunction in CAN-C-Mid (short to earth or 

power supply, wire short to one another)

• Malfunction in the ECUs which are intercon-

nected via CAN-C-Mid (internal error)

• Malfunction (open circuit) of wiring harness, con-

nector (s) between the ETACS-ECU and joint 
connector(s)

DIAGNOSIS PROCEDURE

STEP 1. Check the CAN-C-Mid for short to power 
supply. Voltage measurement at ETACS-ECU 
connector by backprobing.

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) Connect the negative battery terminal, and turn 

the ignition switch to the ON position.

(2) Voltage between ETACS-ECU connector terminal 

No.17 (CAN_H) and body earth by backprobing

OK: Less than 4.0 V

(3) Voltage between ETACS-ECU connector terminal 

No.16 (CAN_L) and body earth by backprobing

OK: Less than 4.0 V

Q: Is the check result normal?

YES <Voltage is less than 4.0 V in both CAN_H and 
CAN_L> : 

Go to Step 2.

NO <Voltage is 4.0 V or more in either CAN_H or 
CAN_L> : 

Perform diagnosis item 6 "Diagnose 

shorts in the power supply to CAN-C-Mid". 
Refer to 

P.54C-40

.

STEP 2. Check the CAN-C-Mid for short to earth. 
Resistance measurement at ETACS-ECU 
connector by backprobing.

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) Turn the ignition switch to the LOCK (OFF) 

position.

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