Mitsubishi Outlander (2013+). Manual — part 471

TROUBLESHOOTING

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-59

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
(Refer to GROUP 54C

− CAN Bus Diagnostics

Table ).

• Whenever ECU is replaced, ensure that the

CAN bus lines are normal.

• When diagnosis code No.C1707 is set in

ASC-ECU, the diagnosis code may also be set
in ETACS-ECU. When the diagnosis code is
set in ETACS-ECU, carry out the diagnosis of
the diagnosis code for ETACS-ECU first.

• When the hydraulic unit (integrated with

ASC-ECU) is replaced, always carry out the
calibration of the steering wheel sensor, the G
and yaw rate sensor and brake fluid pressure
sensor (Refer to

P.35C-93

,

P.35C-94

and

P.35C-94

).

OPERATION

ASC-ECU receives the vehicle information stored in
the ETACS-ECU via CAN bus lines.

DIAGNOSIS CODE SET CONDITIONS

When received invalid coding data from the
ETACS-ECU, this diagnosis code is set.

PROBABLE CAUSES

• Malfunction of ETACS-ECU

• ETACS-ECUs have been interchanged between

two vehicles.

• ASC-ECU malfunction

• ASC-ECUs have been interchanged between two

vehicles.

• Malfunction of ETACS-ECU coding data

• Engine-ECU malfunction

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Repair the CAN bus lines (Refer to GROUP
54C

− CAN Bus Diagnostics Table ). On

completion, go to Step 2.

STEP 2. Diagnosis code recheck after resetting
CAN bus lines

Q: Is diagnosis code No.C1707 set?

YES :

Go to Step 3.

NO :

This diagnosis is complete.

STEP 3. M.U.T.-III other system diagnosis code
Use M.U.T.-III to check whether any coding-related
diagnosis code is set by ETACS-ECU or
engine-ECU.

Q: Is the diagnosis code set?

YES :

Troubleshoot for the relevant diagnosis

code.

NO :

Go to Step 4.

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

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Replace the hydraulic unit (integrated with
ASC-ECU) (Refer to

P.35C-95

). Then go to

Step 9.

STEP 5. ETACS-ECU coding data check
Refer to GROUP 00

− Coding List .

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Replace the ETACS-ECU (Refer to GROUP
54A

− ETACS-ECU ).

STEP 6. Check part number of ETACS-ECU
Check the part number of ETACS-ECU.

Q: Is the check result normal?

YES :

Go to Step 7.

NO :

Replace the ETACS-ECU (Refer to GROUP
54A

− ETACS-ECU ).

STEP 7. Engine-ECU coding data check
Refer to GROUP 00

− Coding List .

Q: Is the check result normal?

YES :

Go to Step 8.

NO :

Replace the engine-ECU (Refer to GROUP
13A

− Engine-ECU ).

STEP 8. Check whether the diagnosis code is
reset.

Erase the diagnosis code.

Q: Is diagnosis code No.C1707 set?

TROUBLESHOOTING

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-60

YES :

Replace the hydraulic unit (integrated with

ASC-ECU) (Refer to

P.35C-95

). Then go to

Step 9.

NO :

The trouble can be an intermittent
malfunction (Refer to GROUP 00

− How to

Use Troubleshooting/How to Cope with
Intermittent Malfunctions ).

STEP 9. Check whether the diagnosis code is
reset.
Erase the diagnosis code.

Q: Is diagnosis code No.C1707 set?

YES :

Return to Step 1.

NO :

This diagnosis is complete.

Code No. U0100 Engine CAN timeout

Code No. U0101 T/M CAN timeout

Code No. U0114 4WD CAN timeout

Code No. U0126 SAS CAN timeout

Code No. U0141 ETACS CAN 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
(Refer to GROUP 54C

− CAN Bus Diagnostics

Table ).

• If diagnosis codes U0100, U0101, U0114,

U0126, and U0141 are set in ASC-ECU, always
diagnose the CAN bus line. If there is any
fault in the CAN bus lines, an incorrect diag-
nosis code may be set. In this case, the set
diagnosis code is not highly reliable.

• Before replacing the ECU, ensure that the

communication circuit is normal.

• When the steering wheel sensor is replaced,

always carry out calibration to make
ASC-ECU learn the neutral point (Refer to

P.35C-94

).

• When the hydraulic unit (integrated with

ASC-ECU) is replaced, always carry out the
calibration of the steering wheel sensor, the G
and yaw rate sensor and brake fluid pressure
sensor (Refer to

P.35C-93

,

P.35C-94

and

P.35C-94

).

• 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 .)

DIAGNOSIS CODE SET CONDITIONS

This diagnosis code is set if ASC-ECU cannot
receive the signal sent from other ECU for a certain
period.

OPERATION

ASC-ECU communicates with the engine-ECU,
CVT-ECU, 4WD-ECU, steering wheel sensor, and
ETACS-ECU via the CAN bus lines.

PROBABLE CAUSES

Code No. U0100

• Wiring harness or connector failure of CAN bus

line

• Engine-ECU malfunction

• ASC-ECU malfunction

Code No. U0101

• Wiring harness or connector failure of CAN bus

line

• CVT-ECU malfunction

• ASC-ECU malfunction

Code No. U0114

• Wiring harness or connector failure of CAN bus

line

• 4WD-ECU malfunction

• ASC-ECU malfunction

Code No. U0126

• Wiring harness or connector failure of CAN bus

line

• Steering wheel sensor malfunction

• ASC-ECU malfunction

Code No. U0141

• Wiring harness or connector failure of CAN bus

line

• Malfunction of ETACS-ECU

• ASC-ECU malfunction

TROUBLESHOOTING

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-61

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnosis
Use M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Repair the CAN bus lines (Refer to GROUP
54C

− CAN Bus Diagnostics Table ). On

completion, go to Step 4.

STEP 2. Check whether the diagnosis code is
reset.

Q: Is Code No. U0100, U0101, U0114, U0126 or U0141

set?
YES :

Go to Step 3.

NO :

The procedure is complete.

STEP 3. M.U.T.-III other system diagnosis code
Use M.U.T.-III to check that other diagnosis code is
set in the ECU corresponding to the relevant diagno-
sis.

Q: Is other diagnosis code set?

YES :

Troubleshoot for the relevant diagnosis

code.

NO :

Go to Step 4.

STEP 4. M.U.T.-III diagnosis code
Use M.U.T.-III to check if the same diagnosis code
(time-out) is set in the other ECU.

Q: Is any diagnosis code set?

YES (Code No. U0100 is set) :

Replace the

engine-ECU, and then go to Step 5.

YES (Code No. U0101 is set) :

Replace the

CVT-ECU, and then go to Step 5.

YES (Code No. U0114 is set) :

Replace 4WD-ECU,

and then go to Step 5.

YES (Code No. U0126 is set) :

Replace steering

wheel sensor, and then go to Step 5.

YES (Code No. U0141 is set) :

Replace the

ETACS-ECU, and then go to Step 5.

NO (No diagnosis code is set.) :

The procedure is

complete.

STEP 5. Check whether the diagnosis code is
reset.
Erase the diagnosis code.

Q: Is Code No. U0100, U0101, U0114, U0126 or U0141

set?
YES :

Replace the hydraulic unit (integrated with

ASC-ECU) (Refer to

P.35C-95

).

NO :

The procedure is complete.

Code No. U0401 Engine (CAN message)

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
(Refer to GROUP 54C

− CAN Bus Diagnostics

Table ).

• If diagnosis code No.U0401 is set in

ASC-ECU, always diagnose the CAN bus line.
If there is any fault in the CAN bus lines, an
incorrect diagnosis code may be set. In this
case, the set diagnosis code is not highly reli-
able.

• Before replacing the ECU, ensure that the

communication circuit is normal.

• When the hydraulic unit (integrated with

ASC-ECU) is replaced, always carry out the
calibration of the steering wheel sensor, the G
and yaw rate sensor and brake fluid pressure
sensor (Refer to

P.35C-93

,

P.35C-94

and

P.35C-94

).

OPERATION

Engine-related signals are sent or received to and
from between ASC-ECU and engine-ECU via CAN
bus lines.

DIAGNOSIS CODE SET CONDITIONS

This diagnosis code is set when the engine-ECU
malfunction has been detected.

PROBABLE CAUSES

• Malfunction of engine system

• Malfunction of engine-ECU

• Malfunction of ASC-ECU

• External noise interference

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnosis
Use M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

TROUBLESHOOTING

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-62

YES :

Go to Step 2.

NO :

Repair the CAN bus lines (Refer to GROUP
54C

− CAN Bus Diagnostics Table ). On

completion, go to Step 5.

STEP 2. M.U.T.-III diagnosis code
Use M.U.T.-III to check that any diagnosis code other
than the code No.U0401 is set in ASC-ECU.

Q: Is the diagnosis code set?

YES :

Troubleshoot the relevant diagnosis code,

and then go to Step 5.

NO :

Go to Step 3.

STEP 3. M.U.T.-III other system diagnosis code
Use M.U.T.-III to check that the diagnosis code is set
by the engine-ECU.

Q: Is the diagnosis code set?

YES :

Troubleshoot the relevant diagnosis code,

and then go to Step 5.

NO :

Go to Step 4.

STEP 4. Check whether the diagnosis code is
reset.
Erase the diagnosis code.

Q: Is diagnosis code No.U0401 set?

YES :

Replace the hydraulic unit (integrated with

ASC-ECU) (Refer to

P.35C-95

), and then

go to Step 5.

NO :

Intermittent malfunction (Refer to GROUP
00

− How to Use Troubleshooting/How to

Cope with Intermittent Malfunctions ).

STEP 5. Check whether the diagnosis code is
reset.
Erase the diagnosis code.

Q: Is diagnosis code No.U0401 set?

YES :

Return to Step 1.

NO :

This diagnosis is complete.

Code No. U0428 SAS (CAN message)

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
(Refer to GROUP 54C

− CAN Bus Diagnostics

Table ).

• If diagnosis code U0428 is set in ASC-ECU,

always diagnose the CAN bus line. If there is
any fault in the CAN bus lines, an incorrect
diagnosis code may be set. In this case, the
set diagnosis code is not highly reliable.

• Before replacing the ECU, ensure that the

communication circuit is normal.

• When the steering wheel sensor is replaced,

always carry out calibration to make
ASC-ECU learn the neutral point (Refer to

P.35C-94

).

• When the hydraulic unit (integrated with

ASC-ECU) is replaced, always carry out the
calibration of the steering wheel sensor, the G
and yaw rate sensor and brake fluid pressure
sensor (Refer to

P.35C-93

,

P.35C-94

and

P.35C-94

).

OPERATION

The steering wheel sensor outputs the steering
wheel status to ASC-ECU via the CAN bus lines.

DIAGNOSIS CODE SET CONDITIONS

This diagnosis code is set when ASC-ECU has
detected the communication error in the steering
wheel sensor.

PROBABLE CAUSES

• Steering wheel sensor malfunction

• ASC-ECU malfunction

• External noise interference

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES :

Replace the steering wheel sensor (Refer to

P.35C-98

). Then go to Step 2.

NO :

Repair the CAN bus lines (Refer to GROUP
54C

− CAN Bus Diagnostics Table ). On

completion, go to Step 3.

STEP 2. Check whether the diagnosis code is
reset.
Erase the diagnosis code.

Q: Is diagnosis code No.U0428 set?