Mitsubishi Evolution X. Manual — part 614
DIAGNOSIS
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WIRELESS CONTROL MODULE (WCM)
42C-73
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
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 satellite radio
tuner diagnostic trouble code.
Check if DTC is set to the satellite radio tuner.
Q: Is the DTC set?
YES : Troubleshoot the satellite radio. (Refer to GROUP
54A, Diagnosis
<Satellite radio tuner>).
NO : Go to Step 3.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
DIAGNOSIS
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WIRELESS CONTROL MODULE (WCM)
42C-74
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
NO : The trouble can be an intermittent malfunction such
as a poor connection or open circuit in the CAN bus
lines between the satellite radio tuner and the WCM.
(Refer to GROUP 00, 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 WCM sets DTC U0197.
.
TROUBLESHOOTING HINTS
• The CAN bus line may be defective.
• The WCM may be defective.
• The hands free module 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
DIAGNOSIS
TSB Revision
WIRELESS CONTROL MODULE (WCM)
42C-75
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 hands free
module diagnostic trouble code.
Check again if the DTC is set to the hands free module.
Q: Is the DTC set?
YES : Troubleshoot the hands-free cellular phone system
(Refer to GROUP 54A
− Hands-free Cellular Phone,
Diagnosis <hands-free cellular phone system>).
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
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
DIAGNOSIS
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WIRELESS CONTROL MODULE (WCM)
42C-76
DTC U0245: Audio visual navigation unit CAN timeout
CAUTION
• If DTC U0245 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 audio visual navigation unit
cannot be received, the WCM sets DTC U0245.
.
TROUBLESHOOTING HINTS
• The CAN bus line may be defective.
• The WCM may be defective.
• The audio visual navigation unit may be defec-
tive.
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
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 audio visual
navigation unit diagnostic trouble code.
Check if DTC is set to the audio visual navigation unit.
Q: Is the DTC set?
YES : Troubleshoot the MMCS (Refer to GROUP 54A
−
MMCS, Diagnosis <MMCS>
NO : Go to Step 3.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
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