Mitsubishi Outlander (2013+). Manual - part 733

 

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Mitsubishi Outlander (2013+). Manual - part 733

 

 

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-68

DIAGNOSIS PROCEDURE

STEP 1. Connector check: joint connector 
(CAN1) and EPS-ECU connector

CAUTION

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

P.54C-5

.

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?

YES : 

Go to Step 2.

NO : 

Repair the defective connector. Replace the 
joint connector as necessary.

STEP 2. Resistance measurement at joint 
connector (CAN1) and EPS-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

.

(1) Disconnect joint connector (CAN1) and the 

EPS-ECU 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) Continuity between joint connector (CAN1) 

terminal No.8 and EPS-ECU connector terminal 
No.4

OK: Continuity (2 

 or less) 

(5) Continuity between joint connector (CAN1) 

terminal No.19 and EPS-ECU connector terminal 
No.3

OK: Continuity (2 

 or less) 

Q: Is the check result normal?

YES : 

<All the resistances measure 2 

Ω or less> 

Power supply to the EPS-ECU may be 
suspected. Diagnose the EPS. Refer to 
GROUP 37 

− Troubleshooting .

NO  : 

<Either or all of the resistances measure 
more than 2 

Ω> Repair the wiring harness 

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

Diagnosis Item 16: Diagnose when the M.U.T.-III cannot receive the data sent by CVT-ECU.

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.

FUNCTION

The diagnostic result demonstrates that "the 
M.U.T.-III cannot receive the sent data from the 
CVT-ECU" when the M.U.T.-III checks the periodi-
cally sent data from each ECU and cannot receive 
the CVT-ECU data only.

TROUBLE JUDGEMENT CONDITIONS

M.U.T.-III judges the trouble when the periodically 
sent data from CVT-ECU cannot be received. 

PROBABLE CAUSES

• Damaged harness wires and connectors

• Power supply circuit malfunction of the CVT-ECU

• Malfunction of the CVT-ECU

DIAGNOSIS PROCEDURE

STEP 1. Connector check: joint connector 
(CAN1) and CVT-ECU connector

CAUTION

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

P.54C-5

.

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?

YES : 

Go to Step 2.

NO : 

Repair the defective connector. Replace the 
joint connector as necessary.

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-69

STEP 2. Resistance measurement at joint 
connector (CAN1) and CVT-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

.

(1) Disconnect joint connector (CAN1) and the 

CVT-ECU 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) Continuity between joint connector (CAN1) 

terminal No.6 and CVT-ECU connector terminal 
No.4

OK: Continuity (2 

 or less) 

(5) Continuity between joint connector (CAN1) 

terminal No.17 and CVT-ECU connector terminal 
No.5

OK: Continuity (2 

 or less) 

Q: Is the check result normal?

YES : 

<All the resistances measure 2 

Ω or less> 

Power supply to the CVT-ECU may be 
suspected. Diagnose the CVT. Refer to 
GROUP 23A 

− Troubleshooting .

NO  : 

<Either or all of the resistances measure 
more than 2 

Ω> Repair the wiring harness 

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

Diagnosis Item 17: Diagnose when the M.U.T.-III cannot receive the data sent by engine-ECU.

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.

FUNCTION

The diagnostic result demonstrates that "the 
M.U.T.-III cannot receive the sent data from the 
engine-ECU" when the M.U.T.-III checks the periodi-
cally sent data from each ECU and cannot receive 
the engine-ECU data only.

TROUBLE JUDGEMENT CONDITIONS

M.U.T.-III judges the trouble when the periodically 
sent data from engine-ECU cannot be received. 

PROBABLE CAUSES

• Damaged harness wires and connectors

• Power supply circuit malfunction of the 

engine-ECU

• Malfunction of the engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. Connector check: joint connector 
(CAN1) and engine-ECU connector

CAUTION

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

P.54C-5

.

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?

YES : 

Go to Step 2.

NO : 

Repair the defective connector. Replace the 
joint connector as necessary.

STEP 2. Resistance measurement at joint 
connector (CAN1) and engine-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

.

(1) Disconnect the joint connector (CAN1) and the 

engine-ECU connector, and measure at the 
wiring harness side.

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

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-70

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) Continuity between joint connector (CAN1) 

terminal No.10 and engine-ECU connector 
terminal No.90

OK: Continuity (2 

 or less) 

(5) Continuity between joint connector (CAN1) 

terminal No.21 and engine-ECU connector 
terminal No.91

OK: Continuity (2 

 or less) 

CAUTION

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

P.54C-5

.

Q: Is the check result normal?

YES : 

<All the resistances measure 2 

Ω or less> 

Go to Step 3  .

NO  : 

<Either or all of the resistances measure 
more than 2 

Ω> Repair the wiring harness 

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

STEP 3. Resistance measurement at engine-ECU 
connector.

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54C-5

.

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

equipment side.

(2) Resistance between engine-ECU connector 

terminal Nos.90 and 91

OK: 120 

± 20 

CAUTION

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

P.54C-5

.

Q: Is the check result normal?

YES : 

<Within 120 

± 20 Ω> Power supply to the 

engine-ECU may be suspected. Diagnose 
the fuel system. Refer to GROUP 13A 

− 

Troubleshooting .

NO : 

<Not within 120 

± 20 Ω> Replace the 

engine-ECU.

Diagnosis Item 18: Diagnose when the M.U.T.-III cannot receive the data sent by KOS-ECU. <Vehicles 
with KOS>

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.

FUNCTION

The diagnostic result demonstrates that "the 
M.U.T.-III cannot receive the sent data from the 
KOS-ECU" when the M.U.T.-III checks the periodi-
cally sent data from each ECU and cannot receive 
the KOS-ECU data only.

TROUBLE JUDGEMENT CONDITIONS

M.U.T.-III judges the trouble when the periodically 
sent data from KOS-ECU cannot be received. 

PROBABLE CAUSES

• Damaged harness wires and connectors

• Power supply circuit malfunction of the KOS-ECU

• Malfunction of the KOS-ECU

DIAGNOSIS PROCEDURE

STEP 1. Connector check: joint connector 
(CAN-LO) and KOS-ECU connector

CAUTION

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

P.54C-5

.

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?

YES : 

Go to Step 2.

NO : 

Repair the defective connector. Replace the 
joint connector as necessary.

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-71

STEP 2. Resistance measurement at joint 
connector (CAN-LO) and KOS-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

.

(1) Disconnect joint connector (CAN-LO) and the 

KOS-ECU 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) Continuity between joint connector (CAN-LO) 

terminal No.5 and KOS-ECU connector terminal 
No.3

OK: Continuity (2 

 or less) 

(5) Continuity between joint connector (CAN-LO) 

terminal No.16 and KOS-ECU connector terminal 
No.2

OK: Continuity (2 

 or less) 

CAUTION

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

P.54C-5

.

Q: Is the check result normal?

YES : 

<All the resistances measure 2 

Ω or less> 

Power supply to the KOS-ECU may be 
suspected. Diagnose the KOS. Refer to 
GROUP 42B 

− Troubleshooting .

NO  : 

<Either or all of the resistances measure 
more than 2 

Ω> Repair the wiring harness 

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

Diagnosis Item 19: Diagnose when the M.U.T.-III cannot receive the data sent by OSS-ECU. <Vehicles 
with OSS>

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.

FUNCTION

The diagnostic result demonstrates that "the 
M.U.T.-III cannot receive the sent data from the 
OSS-ECU" when the M.U.T.-III checks the periodi-
cally sent data from each ECU and cannot receive 
the OSS-ECU data only.

TROUBLE JUDGEMENT CONDITIONS

M.U.T.-III judges the trouble when the periodically 
sent data from OSS-ECU cannot be received. 

PROBABLE CAUSES

• Damaged harness wires and connectors

• Power supply circuit malfunction of the OSS-ECU

• Malfunction of the OSS-ECU

DIAGNOSIS PROCEDURE

STEP 1. Connector check: joint connector 
(CAN-LO) and OSS-ECU connector

CAUTION

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

P.54C-5

.

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?

YES : 

Go to Step 2.

NO : 

Repair the defective connector. Replace the 
joint connector as necessary.

STEP 2. Resistance measurement at joint 
connector (CAN-LO) and OSS-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

.

(1) Disconnect joint connector (CAN-LO) and the 

 

 

 

 

 

 

 

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