Mitsubishi Outlander (2013+). Manual — part 411

TROUBLESHOOTING

ELECTRONICALLY CONTROLLED 4WD

27C-14

STEP 4. M.U.T.-III diagnosis code.
Check if the wheel speed sensor-related, G and yaw
rate sensor-related, or steering wheel sensor-related
diagnosis code is set.

Q: Is the diagnosis code set?

YES :

Carry out the appropriate troubleshooting.

Then go to Step 9.

NO :

Go to Step 5.

STEP 5. Check of steering wheel sensor
installation status
Check that the steering wheel sensor is installed cor-
rectly (Refer to GROUP 35C

− Steering Wheel Sen-

sor ).

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Install the steering wheel sensor correctly.
Then go to Step 6.

STEP 6. Wheel alignment check

Q: Is the check result normal?

YES :

After checking the wheel alignment,

calibrate the steering wheel sensor (Refer to
GROUP 35C

− On-vehicle Service ), and

reset the steering wheel sensor correction
amount stored in the 4WD-ECU(Refer to

P.27C-48

). Then, go to Step 7.

NO :

After adjusting the wheel alignment,
calibrate the steering wheel sensor (Refer to
GROUP 35C

− On-vehicle Service ), and

reset the steering wheel sensor correction
amount stored in the 4WD-ECU(Refer to

P.27C-48

). Then, go to Step 7.

STEP 7. M.U.T.-III data list.
Check the following data list (Refer to

P.27C-45

).

• Item No.8: Steering angle sensor

Q: Is the check result normal?

YES :

Go to Step 8.

NO :

Replace the steering wheel sensor (Refer to
GROUP 35C

− Steering Wheel Sensor ).

Then, go to Step 9.

STEP 8. Check whether the diagnosis code is
reset.

Q: Is diagnosis code No.C1219 set?

YES :

Replace the 4WD-ECU (Refer to

P.27C-51

).

Then, go to Step 9 .

NO :

Intermittent malfunction (Refer to GROUP
00

− How to Cope with Intermittent

Malfunction ).

STEP 9. Check whether the diagnosis code is
reset.

Q: Is diagnosis code No.C1219 set?

YES :

Return to Step 1.

NO :

This diagnosis is complete.

Code No.C121A: Steering Wheel Sensor Initialization <ASC>

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 steering wheel sensor is replaced,

calibrate the steering wheel sensor (Refer to
GROUP 35C

− On-vehicle Service ), and reset

the steering wheel sensor correction amount
stored in the 4WD-ECU. (Item No. 1: SAS
adjusted value

P.27C-48

).

OPERATION

Steering wheel sensor stores the neutral position
learned by the M.U.T.-III. When the neutral position
has not been learned, the steering wheel sensor out-
puts the signal indicating that the learning has not
been performed.

DIAGNOSIS CODE SET CONDITION

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

• the steering wheel sensor has not learned the

neutral position

TROUBLESHOOTING

ELECTRONICALLY CONTROLLED 4WD

27C-15

PROBABLE CAUSES

• Steering wheel sensor neutral point not learned

• Malfunction of steering wheel sensor

• 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 3.

NO :

Repair the CAN bus lines (Refer to GROUP
54C

− Troubleshooting ). After repairing the

CAN bus line, go to Step 2.

STEP 2. Check whether the diagnosis code is
reset.

Q: Is diagnosis code No.C121A set?

YES :

Go to Step 3.

NO :

This diagnosis is complete.

STEP 3. Steering wheel sensor calibration.
Perform calibration of the steering wheel sensor
(Refer to GROUP 35C

− On-vehicle Service ).

Q: Has the calibration succeeded?

YES :

Go to Step 4.

NO :

Replace the steering wheel sensor (Refer to
GROUP 35C

− Steering Wheel Sensor ).

Then, go to Step 4.

STEP 4. Check whether the diagnosis code is
reset.

Q: Is diagnosis code No.C121A 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.C121A set?

YES :

Return to Step 1.

NO :

This diagnosis is complete.

Code No.C123C: Sensor Cluster Malfunction <ASC>

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 steering wheel sensor is replaced,

calibrate the steering wheel sensor (Refer to
GROUP 35C

− On-vehicle Service ), and reset

the steering wheel sensor correction amount
stored in the 4WD-ECU. (Item No. 1: SAS
adjusted value

P.27C-48

).

• When hydraulic unit (integrated with G and

yaw rate sensor) is replaced, calibrate G and
yaw rate sensor (Refer to GROUP 35C

−

On-vehicle Service .)

OPERATION

4WD-ECU receives the G and yaw rate sensor data
from ASC-ECU via the CAN communication.

DIAGNOSIS CODE SET CONDITIONS

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

• Abnormality in G and yaw rate sensor output

value

• Abnormality is detected by a comparison of out-

put value from the G and yaw rate sensor with the
output values from wheel speed sensor and
steering wheel sensor.

PROBABLE CAUSES

• Malfunction of G and yaw rate sensor

• Malfunction of wheel speed sensor

• Improper installation of steering wheel sensor

• Malfunction of steering wheel sensor

• 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?

TROUBLESHOOTING

ELECTRONICALLY CONTROLLED 4WD

27C-16

YES :

Go to Step 3.

NO :

Repair the CAN bus lines (Refer to GROUP
54C

− Troubleshooting ). After repairing the

CAN bus line, go to Step 2.

STEP 2. Check whether the diagnosis code is
reset.

Q: Is diagnosis code No.C123C set?

YES :

Go to Step 3.

NO :

This diagnosis is complete.

STEP 3. M.U.T.-III diagnosis code.
Check the ASC diagnosis code. (Refer to GROUP
35C

− Troubleshooting ).

Q: Is the check result normal?

YES :

Perform the relevant troubleshooting.

NO :

Go to Step 4.

STEP 4. M.U.T.-III other system diagnosis code.
Check if the wheel speed sensor-related, or steering
wheel sensor-related diagnosis code is set.

Q: Is the diagnosis code set?

YES :

Perform the relevant troubleshooting.

NO :

Go to Step 5.

STEP 5. Check of hydraulic unit (integrated with
G and yaw rate sensor) installation status.
Check that the hydraulic unit (integrated with G and
yaw rate sensor) is installed correctly (Refer to
GROUP 35C

− Hydraulic unit (integrated with G and

yaw rate sensor) ).

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Reinstall the hydraulic unit (integrated with
G and yaw rate sensor) correctly. Then go
to Step 6.

STEP 6. M.U.T.-III data list.
Check the following data list (Refer to

P.27C-45

).

• Item No.22: Yaw rate sensor

• Item No.23: Lateral G sensor

Q: Is the check result normal?

YES :

Go to Step 7.

NO :

Replace the hydraulic unit (integrated with
G and yaw rate sensor) is installed correctly
(Refer to GROUP 35C

− Hydraulic unit

(integrated with G and yaw rate sensor) ).
Then go to Step 11.

STEP 7. Check of steering wheel sensor
installation status.
Check that the steering wheel sensor is installed cor-
rectly (Refer to GROUP 35C

− Steering Wheel Sen-

sor ).

Q: Is the check result normal?

YES :

Go to Step 8.

NO :

Install the steering wheel sensor correctly.
Then go to Step 8.

STEP 8. Wheel alignment check.

Q: Is the check result normal?

YES :

After checking the wheel alignment,

calibrate the steering wheel sensor (Refer to
GROUP 35C

− On-vehicle Service ), and

reset the steering wheel sensor correction
amount stored in the 4WD-ECU(Refer to

P.27C-48

). Then go to Step 9.

NO :

After adjusting the wheel alignment,
calibrate the steering wheel sensor (Refer to
GROUP 35C

− On-vehicle Service ), and

reset the steering wheel sensor correction
amount stored in the 4WD-ECU(Refer to

P.27C-48

). Then go to Step 9.

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

P.27C-45

).

• Item No.8: Steering angle sensor

Q: Is the check result normal?

YES :

Go to Step 10.

NO :

Replace the steering wheel sensor (Refer to
GROUP 35C

− Steering Wheel Sensor ).

Then go to Step 10.

STEP 10. Check whether the diagnosis code is
reset.

Q: Is diagnosis code No.C123C set?

YES :

Replace the 4WD-ECU (Refer to

P.27C-51

).

Then go to Step 11.

NO :

Intermittent malfunction (Refer to GROUP
00

− How to Cope with Intermittent

Malfunction ).

STEP 11. Check whether the diagnosis code is
reset.

Q: Is diagnosis code No.C123C set?

YES :

Return to Step 1.

NO :

This diagnosis is complete.

TROUBLESHOOTING

ELECTRONICALLY CONTROLLED 4WD

27C-17

Code No.C1242: Straight G Sensor Signal

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 hydraulic unit (integrated with G and

yaw rate sensor) is replaced, calibrate G and
yaw rate sensor (refer to GROUP 35C

−

On-vehicle Service )

OPERATION

4WD-ECU receives the G and yaw rate sensor data
from ASC-ECU via the CAN communication.

DIAGNOSIS CODE SET CONDITIONS

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

• Abnormality in G and yaw rate sensor output

value

• The abnormality is detected by comparing the

longitudinal G-sensor value output from the G
and yaw rate sensor with the value output from
the wheel speed sensor.

PROBABLE CAUSES

• Malfunction of G and yaw rate sensor

• Malfunction of wheel speed sensor

• Malfunction of stop lamp switch

• 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 3.

NO :

Repair the CAN bus lines (Refer to GROUP
54C

− Troubleshooting ). After repairing the

CAN bus line, go to Step 2.

STEP 2. Check whether the diagnosis code is
reset.

Q: Is diagnosis code No.C1242 set?

YES :

Go to Step 3.

NO :

This diagnosis is complete.

STEP 3. M.U.T.-III other system diagnosis code.
Check if the wheel speed sensor-related diagnosis
code is set.

Q: Is the diagnosis code set?

YES :

Perform the relevant troubleshooting.

NO :

Go to Step 4.

STEP 4. Check of hydraulic unit (integrated with
G and yaw rate sensor) installation status.
Check that the hydraulic unit (integrated with G and
yaw rate sensor) is installed correctly (Refer to
GROUP 35B

− Hydraulic unit (integrated with G and

yaw rate sensor) <Vehicles with ABS>GROUP 35C
− Hydraulic unit (integrated with G and yaw rate sen-
sor) <Vehicles with ASC>).

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Reinstall the hydraulic unit (integrated with
G and yaw rate sensor) correctly. 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.24: Longitudinal G sensor

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Replace the hydraulic unit (integrated with
G and yaw rate sensor) (Refer to GROUP
35B

− Hydraulic unit (integrated with G and

yaw rate sensor) <Vehicles with ABS> or
GROUP 35C

− Hydraulic unit (integrated

with G and yaw rate sensor) <Vehicles with
ASC>). Then go to Step 7.

STEP 6. Check whether the diagnosis code is
reset.

Q: Is diagnosis code No.C1242 set?

YES :

Replace the 4WD-ECU (Refer to

P.27C-51

).

Then go to Step 7.

NO :

Intermittent malfunction (Refer to GROUP
00

− How to Cope with Intermittent

Malfunction ).

STEP 7. Check whether the diagnosis code is
reset.

Q: Is diagnosis code No.C1242 set?

YES :

Return to Step 1.

NO :

This diagnosis is complete.