Mitsubishi Outlander XL. Manual — part 822

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958. Refer to "How to connect the
Scan Tool (M.U.T.-III) P.42C-7."

(2)

Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.

(3)

Check if DTC is set.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the DTC set?

YES:

Go to Step 2.

NO:

The trouble can be an intermittent malfunction (Refer

to GROUP 00 - How to use Troubleshooting/inspection
Service Points - How to Cope with Intermittent
Malfunction P.00-15).

STEP 2. Using scan tool MB991958, diagnose the CAN bus
line.

(1)

Turn the ignition switch to the "ON" position.

(2)

Diagnose the CAN bus line.

(3)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the CAN bus line found to be normal?

YES:

The trouble can be an intermittent malfunction

(Refer to GROUP 00 - How to use Troubleshooting/
inspection Service Points - How to Cope with Intermittent
Malfunction P.00-15).

NO:

Repair the CAN bus line. (Refer to GROUP 54D,

Diagnosis P.54D-17).

DTC U0141: ETACS-ECU CAN timeout

M14209200025USA0000010000

｠

If the DTC U0141 is set, be sure to diagnose the
CAN bus line.

｠

When replacing the ECU, always check that the
communication circuit is normal.

DIAGNOSTIC FUNCTION
If the signal from ETACS-ECU cannot be received,
the WCM sets DTC U0141.

TROUBLESHOOTING HINTS

｠

Malfunction of CAN bus line

｠

Malfunction of WCM

｠

Malfunction of ETACS-ECU

DIAGNOSIS

Required Special Tools:

｠

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

WIRELESS CONTROL MODULE (WCM)

42C-47

DIAGNOSIS

｠

MB991824: Vehicle Communication Interface (V.C.I.)

｠

MB991827: M.U.T.-III USB Cable

｠

MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)

STEP 1. Using scan tool MB991958, diagnose the CAN bus
line.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958. Refer to "How to connect the
Scan Tool (M.U.T.-III) P.42C-7."

(2)

Turn the ignition switch to the "ON" position.

(3)

Diagnose the CAN bus line.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the CAN bus line found to be normal?

YES:

Go to Step 2.

NO:

Repair the CAN bus line. (Refer to GROUP 54D,

Diagnosis P.54D-17).

STEP 2. Using scan tool MB991958, read the ETACS-ECU
diagnostic trouble code.
Check again if the DTC is set to the ETACS-ECU.

Q:Is the DTC set?

YES:

Diagnose the ETACS-ECU (Refer to GROUP 54Ad - P.

54Ad-8).

NO:

Go to Step 3.

STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the WCM.

(1)

Erase the DTC.

(2)

Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.

(3)

Check if DTC is set.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the DTC set?

YES:

Replace WCM and register the ID codes. (Refer to P.

42C-8.)

NO:

The trouble can be an intermittent malfunction (Refer

to GROUP 00 - How to use Troubleshooting/inspection
Service Points - How to Cope with Intermittent
Malfunction P.00-15).

42C-48

WIRELESS CONTROL MODULE (WCM)

DIAGNOSIS

DTC U0151: SRS-ECU CAN timeout

M14209200026USA0000010000

｠

If the DTC U0151 is set, be sure to diagnose the
CAN bus line.

｠

When replacing the ECU, always check that the
communication circuit is normal.

DIAGNOSTIC FUNCTION
If no signal from SRS-ECU can be received, WCM
sets diagnostic trouble code U0151.

TROUBLESHOOTING HINTS

｠

The CAN bus line may be defective

｠

The SRS-ECU may be defective

｠

Malfunction of WCM

DIAGNOSIS

Required Special Tools:

｠

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

｠

MB991824: Vehicle Communication Interface (V.C.I.)

｠

MB991827: M.U.T.-III USB Cable

｠

MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)

STEP 1. Using scan tool MB991958, diagnose the CAN bus
line.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958. Refer to "How to connect the
Scan Tool (M.U.T.-III) P.42C-7."

(2)

Turn the ignition switch to the "ON" position.

(3)

Diagnose the CAN bus line.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the CAN bus line found to be normal?

YES:

Go to Step 2.

NO:

Repair the CAN bus line. (Refer to GROUP 54D,

Diagnosis P.54D-17).

STEP 2. Using scan tool MB991958, read the SRS-ECU
diagnostic trouble code.
Check again if the DTC is set to the SRS-ECU.

Q:Is the DTC set?

YES:

Troubleshoot the SRS (Refer to GROUP 52B,

Troubleshooting P.52B-33).

WIRELESS CONTROL MODULE (WCM)

42C-49

DIAGNOSIS

NO:

Go to Step 3.

STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the WCM.

(1)

Erase the DTC.

(2)

Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.

(3)

Check if DTC is set.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the DTC set?

YES:

Replace WCM and register the ID codes. (Refer to P.

42C-8.)

NO:

The trouble can be an intermittent malfunction (Refer

to GROUP 00 - How to use Troubleshooting/inspection
Service Points - How to Cope with Intermittent
Malfunction P.00-15).

DTC U0154: Occupant classification-ECU CAN timeout

M14209200073USA0000010000

｠

If DTC U0154 is set, be sure to diagnose the CAN
bus line.

｠

When replacing the ECU, always check that the
communication circuit is normal.

DIAGNOSTIC FUNCTION
When the signals from occupant classification-ECU
cannot be received, the WCM sets DTC U0154.

TROUBLESHOOTING HINTS

｠

The CAN bus line may be defective.

｠

The WCM may be defective.

｠

The occupant classification-ECU may be defective.

DIAGNOSIS

Required Special Tools:

｠

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

｠

MB991824: Vehicle Communication Interface (V.C.I.)

｠

MB991827: M.U.T.-III USB Cable

｠

MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)

42C-50

WIRELESS CONTROL MODULE (WCM)

DIAGNOSIS