Mitsubishi Outlander GS45X. Manual — part 1175

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-67

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

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting 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 54C,

Diagnosis

P.54C-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-11

or GROUP 55B, Auto A/C

Diagnosis

P.55B-8

).

NO : Go to Step 3.

STEP 3. Using scan tool MB991958, read the other system
diagnostic trouble code.
Check if DTC U0164 is set to the combination meter.
Q: Is the DTC set?

YES : Go to Step 4.
NO : Go to Step 5.

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link
connector

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-68

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 A/C-ECU.
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 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-10

.)

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 U0184: Audio CAN timeout

CAUTION

• If DTC U0184 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 radio and CD player or CD
changer cannot be received, the WCM sets DTC
U0184.

.

TROUBLESHOOTING HINTS

• The CAN bus line may be defective.

• The WCM may be defective.

• The radio and CD player or CD changer 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)

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-69

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

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting 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 54C,

Diagnosis

P.54C-17

).

STEP 2. Using scan tool MB991958, read the audio
diagnostic trouble code.
Check again if the DTC is set to the audio.
Q: Is the DTC set?

YES : Troubleshoot the radio and CD player. Refer to

GROUP 54A, Diagnosis <radio and CD
player>

P.54A-333

.

NO : Go to Step 3.

STEP 3. Using scan tool MB991958, read the other system
diagnostic trouble code.
Check if DTC U0184 is set to the combination meter.
Q: Is the DTC set?

YES : Go to Step 4.
NO : Go to Step 5.

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link
connector

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-70

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 radio and CD player or CD changer.
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 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-10

.)

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 U0195: Satellite radio tuner CAN timeout

CAUTION

• If DTC U0195 is set to the ETACS-ECU, always

diagnose the CAN bus line.

• Before replacing the ECU, ensure that the

communication circuit is normal.

.

TROUBLE JUDGMENT

If the signal from satellite radio tuner cannot be
received, the WCM sets DTC U0195.

.

TROUBLESHOOTING HINTS

• The satellite radio tuner may be defective.

• The WCM may be defective.

• The CAN bus 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)