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
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
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
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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)
."
(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,
).
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
<KOS> or GROUP 42C,
<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
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)
."
(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,
).
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
.)
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
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)
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