Mitsubishi Outlander (2013+). Manual - part 414

TROUBLESHOOTING

ELECTRONICALLY CONTROLLED 4WD

27C-26

STEP 4. Check whether the diagnosis code is 
reset.

Q: Is diagnosis code No.C1631 set?

YES : 

Return to Step 1.

NO : 

This diagnosis is complete.

Code No. C1632: Engine Timeout

CAUTION

• If there is any problem in the CAN bus lines, 

an incorrect diagnosis code may be set. Prior 
to this diagnosis, diagnose the CAN bus 
lines.

• Whenever the ECU is replaced, ensure that 

the CAN bus lines are normal.

OPERATION

4WD-ECU communicates with the engine-ECU via 
the CAN bus lines.

DIAGNOSIS CODE SET CONDITIONS

This diagnosis code is set when the abnormality 
below is detected:

• The CAN signal of the engine-ECU cannot be 

received.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• Damaged connectors (Engine-ECU)

• Malfunction of Engine-ECU

• Malfunction of 4WD-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.
Use M.U.T.-III to perform the CAN bus diagnosis.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the CAN bus lines (Refer to GROUP 
54C 

− Troubleshooting ). After repairing the 

CAN bus line, go to Step 2.

STEP 2. M.U.T.-III other system diagnosis code.
Check the engine diagnosis code (Refer to GROUP 
13A 

−Troubleshooting ).

Q: Is the diagnosis code set?

YES : 

Perform the relevant troubleshooting.

NO : 

Go to Step 3.

STEP 3. Check whether the diagnosis code is 
reset.

Q: Is diagnosis code No.C1632 set?

YES : 

Replace the 4WD-ECU (Refer to 

P.27C-51

). 

Then go to Step 4.

NO : 

Intermittent malfunction (Refer to GROUP 
00 

− How to Cope with Intermittent 

Malfunction ).

STEP 4. Check whether the diagnosis code is 
reset.

Q: Is diagnosis code No.C1632 set?

YES : 

Return to Step 1.

NO : 

This diagnosis is complete.

Code No. C1633: T/M Timeout

CAUTION

• If there is any problem in the CAN bus lines, 

an incorrect diagnosis code may be set. Prior 
to this diagnosis, diagnose the CAN bus 
lines.

• Whenever the ECU is replaced, ensure that 

the CAN bus lines are normal.

• 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 .)

OPERATION

4WD-ECU communicates with CVT-ECU via the 
CAN bus lines.

DIAGNOSIS CODE SET CONDITION

This diagnosis code is set when the abnormality 
below is detected:

TROUBLESHOOTING

ELECTRONICALLY CONTROLLED 4WD

27C-27

• the CAN signal of the CVT-ECU cannot be 

received.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• Damaged connectors (CVT-ECU)

• Malfunction of CVT-ECU

• Malfunction of 4WD-ECU

• Coding failure

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.
Use M.U.T.-III to perform the CAN bus diagnosis.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the CAN bus lines (Refer to GROUP 
54C 

− Troubleshooting ).

STEP 2. M.U.T.-III other system diagnosis code.
Check the CVT diagnosis code (Refer to GROUP 
23A 

− CVT, Troubleshooting ).

Q: Is the diagnosis code set?

YES : 

Perform the relevant troubleshooting.

NO : 

Go to Step 3.

STEP 3. ETACS-ECU coding data check.
Check the transmission coding data stored in 
ETACS-ECU for any abnormality (Refer to GROUP 
00 

− Coding Reference Table ).

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Replace the ETACS-ECU. Then go to Step 
5.

STEP 4. Check whether the diagnosis code is 
reset.

Q: Is diagnosis code No.C1633 set?

YES : 

Replace the 4WD-ECU (Refer to 

P.27C-51

). 

Then go to Step 5 .

NO : 

Intermittent malfunction (Refer to GROUP 
00 

− How to Cope with Intermittent 

Malfunction ).

STEP 5. Check whether the diagnosis code is 
reset.

Q: Is diagnosis code No.C1633 set?

YES : 

Return to Step 1.

NO : 

This diagnosis is complete.

Code No.C1707: Implausible Coding Data

CAUTION

• If there is any problem in the CAN bus lines, 

an incorrect diagnosis code may be set. Prior 
to this diagnosis, diagnose the CAN bus 
lines.

• Whenever the ECU is replaced, ensure that 

the communication circuit is normal.

• When the diagnosis code No.C1707 is set in 

4WD-ECU, the diagnosis code may also be 
set in ETACS-ECU. When the diagnosis code 
is set in ETACS-ECU, perform the diagnosis 
of the diagnosis code for ETACS-ECU first.

• 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 .)

OPERATION

4WD-ECU receives the vehicle information stored in 

ETACS-ECU via CAN bus lines.

DIAGNOSIS CODE SET CONDITION

This diagnosis code is set when the abnormality 
below is detected:

• The vehicle information received from 

ETACS-ECU is not correct.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• ETACS-ECU malfunction

• Malfunction of 4WD-ECU

• ETACS-ECU has been interchanged between 

two vehicles.

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.
Use M.U.T.-III to perform the CAN bus diagnosis.

Q: Is the check result normal?

TROUBLESHOOTING

ELECTRONICALLY CONTROLLED 4WD

27C-28

YES : 

Go to Step 2.

NO : 

Repair the CAN bus lines (Refer to GROUP 
54C 

− Troubleshooting ).

STEP 2. M.U.T.-III other system diagnosis code.
Check the ETACS diagnosis code (Refer to GROUP 
54A 

− Troubleshooting ).

Q: Is the diagnosis code set?

YES : 

Perform the relevant troubleshooting.

NO : 

Go to Step 3.

STEP 3. ETACS-ECU coding data check
Using the M.U.T.-III, check if there is the 
engine-related, T/M-related, ASC-related abnormal-
ity to the coding data stored in the ETACS-ECU 
(Refer to GROUP 00 

− Coding Reference Table ).

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the coding data or replace 
ETACS-ECU. Then go to Step 6.

STEP 4. Check the part number of ETACS-ECU
Check the part number of ETACS-ECU.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Replace the ETACS-ECU (Refer to GROUP 
54A 

− ETACS-ECU ), and then go to Step 6.

STEP 5. Check whether the diagnosis code is 
reset.

Q: Is diagnosis code No.C1707 set?

YES : 

Replace the 4WD-ECU (Refer to 

P.27C-51

). 

Then go to Step 6 .

NO : 

Intermittent malfunction. (Refer to GROUP 
00 

− How to Cope with Intermittent 

Malfunction ).

STEP 6. Check whether the diagnosis code is 
reset.

Q: Is diagnosis code No.C1707 set?

YES : 

Return to Step 1.

NO : 

This diagnosis is complete.

Code No.C2100: Power supply low voltage

CAUTION

• 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 .)

OPERATION

4WD-ECU power supply is provided from the battery 
via ETACS-ECU.

DIAGNOSIS CODE SET CONDITIONS

This diagnosis code is set when the abnormality 
below is detected:

• Voltage between the battery and ETACS-ECU: 

Less than 9 V

PROBABLE CAUSES

• Battery failure

• Malfunction of charging system

• Malfunction of ETACS-ECU (power supply circuit 

system)

• Damaged harness wires and connectors

• Malfunction of electronic control coupling sole-

noid

• Malfunction of 4WD-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III other system diagnosis code.
Check the ETACS diagnosis code (Refer to GROUP 
54A 

− Troubleshooting ).

Q: Is the diagnosis code set?

YES : 

Perform the relevant troubleshooting.

NO : 

Go to Step 2.

STEP 2. Check the battery.
Refer to GROUP 54A 

− Battery Test .

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Charge or replace the battery. Then go to 
Step 3.

STEP 3. Check the charging system.
Refer to GROUP 16 

− Charging System .

Q: Is the check result normal?

TROUBLESHOOTING

ELECTRONICALLY CONTROLLED 4WD

27C-29

YES : 

Go to Step 4.

NO : 

Repair or replace the charging system 
component(s).

STEP 4. Voltage measurement at 4WD-ECU 
connector
Disconnect the connector, and measure the voltage 
between terminal BAtt and body earth at the wiring 
harness side.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the defective connector or the wiring 
harness. Then go to Step 5.

STEP 5. M.U.T.-III data list.
Check the following data list (Refer to 

P.27C-45

).

• Item No.31: Battery voltage (CAN input)

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Cope with Intermittent 

Malfunction ).

NO : 

Replace the ETACS-ECU. Then go to Step 
10.

STEP 6. Check the wiring harness between 
4WD-ECU connector terminal GND1 and body 
earth.
Check the earth line for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the defective connector or the wiring 
harness. Then go to Step 10.

STEP 7. Check the wiring harness between 
electronic control coupling solenoid connector 
and 4WD-ECU connector terminal SOL+, SOL-.
Check the power supply, earth line for short circuit.

Q: Is the check result normal?

YES : 

Go to Step 8.

NO : 

Repair the defective connector or the wiring 
harness. Then go to Step 10.

STEP 8. Check of the electronic control coupling 
solenoid
Refer to 

P.27C-49

.

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Replace the electronic control coupling 
(Refer to 

P.27C-53

). Then go to Step 10.

STEP 9. M.U.T.-III data list.
Check the following data list (Refer to 

P.27C-45

).

• Item No.31: Battery voltage (CAN input)

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Cope with Intermittent 

Malfunction ).

NO : 

Replace the 4WD-ECU (Refer to 

P.27C-51

). 

Then go to Step 10.

STEP 10. Check whether the diagnosis code is 
reset.

Q: Is diagnosis code No.C2100 set?

YES : 

Return to Step 1.

NO : 

This diagnosis is complete.

Code No.C2101: Power supply high voltage

OPERATION

4WD-ECU power supply is provided from the battery 
via ETACS-ECU.

DIAGNOSIS CODE SET CONDITIONS

This diagnosis code is set when the abnormality 
below is detected:

• Voltage between the battery and ETACS-ECU: 

More than 18 V

PROBABLE CAUSES

• Malfunction of charging system

• Loose battery terminal

• Damaged harness wires and connectors

• Malfunction of 4WD-ECU

• ETACS-ECU malfunction

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III other system diagnosis code.
Check the ETACS diagnosis code (Refer to GROUP 
54A 

− Troubleshooting ).

Q: Is the diagnosis code set?

YES : 

Perform the relevant troubleshooting.

NO : 

Go to Step 2.