Mitsubishi Evolution X. Manual - part 984

RADIO AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-297

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 55, 

Automatic A/C Diagnosis 

P.55-9

).

NO :  Go to Step 3.

STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the radio and CD player.
(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.
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 U0168: WCM CAN timeout

CAUTION

• If DTC U0168 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 KOS-ECU <vehicles with KOS> or 
WCM <vehicles with WCM> cannot be received, the 
radio and CD player sets DTC U0168.

.

JUDGMENT CRITERIA

With the ignition switch in the ON position, system 
voltage between 10 

− 16 V (data from ETACS-ECU), 

power supply fuse is OK, or odometer value is 80.5 
km (50 miles) or more, and the communication with 
KOS-ECU <vehicles with KOS> or WCM <vehicles 
with WCM> cannot be established for 2,500 ms or 
more, the radio and CD player determines that a 
problem has occurred.

.

TROUBLESHOOTING HINTS

• The CAN bus line may be defective.

• The KOS-ECU may be defective. <vehicles with 

KOS>

• The WCM may be defective. <vehicles with 

WCM>

• The radio and CD player may be defective.

DIAGNOSIS

Required Special Tools:

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

• MB991824: Vehicles 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)

RADIO AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-298

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.54A-285

."

(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-14

).

STEP 2. Using scan tool MB991958, read the KOS-ECU 
<vehicles with KOS> or WCM <vehicles with WCM> 
diagnostic trouble code.
Check again if the DTC is set to the KOS-ECU <vehicles with 
KOS> or WCM <vehicles with WCM>.
Q: Is the DTC set?

YES : Troubleshoot the KOS or WCM (Refer to GROUP 

42B, Diagnosis 

P.42B-20

 <KOS> or GROUP 42C, 

Diagnosis 

P.42C-14

 <WCM>).

NO :  Go to Step 3.

STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the radio and CD player.
(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.
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

).

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

RADIO AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-299

DTC U0195: Satellite radio CAN timeout

CAUTION

• If DTC U0195 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 satellite radio tuner cannot be 
received, the radio and CD player sets DTC U0195.

.

JUDGMENT CRITERIA

With the ignition switch in the ON position, system 
voltage between 10 

− 16 volts (data from 

ETACS-ECU), power supply fuse is OK, or odometer 
value is 80.5 km (50 miles) or more, and the commu-
nications with satellite radio tuner cannot be estab-
lished for 2,500 ms or more, the radio and CD player 
determines that a problem has occurred.

.

TROUBLESHOOTING HINTS

• The CAN bus line may be defective.

• The radio and CD player may be defective.

• The satellite radio tuner may be defective.

DIAGNOSIS

Required Special Tools:

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

• MB991824: V.C.I.

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A

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.54A-285

."

(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-14

).

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

RADIO AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-300

STEP 2. Using scan tool MB991958 read the satellite radio 
tuner diagnostic trouble code.
Check whether a satellite radio tuner DTCs are set or not.
(1) Turn the ignition switch to the "ON" position.
(2) Check for satellite radio tuner DTCs.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Diagnose the satellite radio tuner. (Refer to 

P.54A-540

.)

NO :   Go to Step 3.

STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the radio and CD player.
(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.
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 U0197: Hands free module CAN timeout

CAUTION

• If DTC U0197 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 hands free module cannot be 
received, the radio and CD player sets DTC U0197.

.

JUDGMENT CRITERIA

With the ignition switch in the ON position, system 
voltage between 10 

− 16 volts (data from 

ETACS-ECU), power supply fuse is OK, or odometer 
value is 80.5 km (50 miles) or more, and the commu-
nications with hands free module cannot be estab-
lished for 2,500 ms or more, the radio and CD player 
determines that a problem has occurred.

.

TROUBLESHOOTING HINTS

• The CAN bus line may be defective.

• The radio and CD player may be defective.

• The hands free module may be defective.

DIAGNOSIS

Required Special Tools:

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

• MB991824: Vehicles 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)