Mitsubishi Outlander XL. Manual - part 823

 

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Mitsubishi Outlander XL. Manual - part 823

 

 

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 if DTC is set to the SRS-ECU.

Q:Is the DTC set?

YES:

 Troubleshoot the SRS. (Refer to GROUP 52B,

Diagnosis P.52B-33.)

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).

WIRELESS CONTROL MODULE (WCM)

42C-51

DIAGNOSIS

DTC U0155: Combination meter CAN timeout

M14209200027USA0000010000

If the diagnostic trouble code U0155 is set, be
sure to diagnose the CAN bus line.

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

TROUBLE JUDGMENT
If  no  signal  from  the  combination  meter  can  be
received, WCM sets DTC U0155.

TROUBLESHOOTING HINTS

Malfunction of CAN bus line

Combination meter malfunction

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 combination
meter diagnostic trouble code.
Check if DTC is set to the combination meter.

Q:Is the DTC set?

YES:

 Troubleshoot the combination meter. (Refer to GROUP

54Ab, Diagnosis P.54Ab-7.)

42C-52

WIRELESS CONTROL MODULE (WCM)

DIAGNOSIS

NO:

 Go to Step 3.

STEP 3. Using scan tool MB991958, read the A/C-ECU
diagnostic trouble code.
Check if the DTC U0155 is set to the A/C-ECU.

Q:Is the DTC set?

YES:

 Go to Step 4.

NO:

 Go to Step 5.

STEP 4. 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 the combination meter.

NO:

 The trouble can be an intermittent malfunction such

as a poor connection or open circuit in the CAN bus lines
between the combination meter and the WCM. (Refer to GROUP
00, How to Cope with Intermittent Malfunction P.00-15)

STEP 5. 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 such

as a poor connection or open circuit in the CAN bus lines
between the combination meter and the WCM. (Refer to GROUP
00, How to Cope with Intermittent Malfunction P.00-15)

DTC U0164: A/C-ECU CAN timeout

M14209200028USA0000010000

If DTC U0164 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 A/C-ECU cannot be received, the
WCM sets DTC U0164.

TROUBLESHOOTING HINTS

The CAN bus line may be defective.

The A/C-ECU may be defective.

The WCM may be defective.

WIRELESS CONTROL MODULE (WCM)

42C-53

DIAGNOSIS

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 A/C diagnostic
trouble code
Check if DTC is set to the A/C-ECU.

Q:Is the DTC set?

YES:

 Troubleshoot the A/C (Refer to GROUP 55A, Manual A/

C Diagnosis P.55A-8or GROUP 55B, Auto A/C Diagnosis P.
55B-7).

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.)

42C-54

WIRELESS CONTROL MODULE (WCM)

DIAGNOSIS

 

 

 

 

 

 

 

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