Mitsubishi Evolution X. Manual — part 1031
HANDS-FREE CELLULAR PHONE SYSTEM
TSB Revision
CHASSIS ELECTRICAL
54A-485
STEP 2. Using scan tool MB991958, read the radio and CD
player diagnostic trouble code.
Check if DTC is set to the radio and CD player.
Q: Is the DTC set?
YES : Troubleshoot the radio and CD player (Refer to
).
NO : Go to Step 3.
STEP 3. Recheck for diagnostic trouble code.
Check again if the diagnostic trouble code is set to the hands
free module.
(1) Erase the DTC.
(2) Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.
(3) Check if DTC is set.
Q: Is the DTC set?
YES : Replace the hands free module.
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 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 hands free module sets DTC U0195.
.
TROUBLESHOOTING HINTS
• The CAN bus line may be defective.
• The hands free module 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
HANDS-FREE CELLULAR PHONE SYSTEM
TSB Revision
CHASSIS ELECTRICAL
54A-486
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 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.
NO : Go to Step 3.
STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the hands free module.
(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 hands free module.
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
HANDS-FREE CELLULAR PHONE SYSTEM
TSB Revision
CHASSIS ELECTRICAL
54A-487
DTC U0245 AND 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 CAN box unit (multivision dis-
play) cannot be received, the hands free module sets
the diagnostic trouble code No. U0245.
.
TROUBLESHOOTING HINTS
• The CAN bus line may be defective.
• The hands free module may be defective.
• The CAN box unit 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)
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
HANDS-FREE CELLULAR PHONE SYSTEM
TSB Revision
CHASSIS ELECTRICAL
54A-488
STEP 2. Using scan tool MB991958, read the CAN box unit
diagnostic trouble code
Check the DTC is set to the CAN box unit .
Q: Is the DTC set?
YES : Troubleshoot the CAN box unit (Refer to MMCS
−
Diagnostic Trouble Code Chart
NO : Go to Step 3.
STEP 3. Recheck for diagnostic trouble code.
Check again if the diagnostic trouble code is set to the hands
free module.
(1) Erase the diagnostic trouble code.
(2) Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.
(3) Check if DTC is set.
Q: Is the diagnostic trouble code set?
YES : Replace the hands free module.
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
TROUBLE SYMPTOM CHART
M1546001800570
NOTE: Several Bluetooth
™
cellular phones may not
be compatible with the hands free module
Inspection
Procedure No.
Trouble symptom
Reference
page
1
Hands free cellular phone system does not work normally.
2
During the conversation with the hands free cellular phone system, the
speaker’s voice cannot be heard by the other party.
3
During the conversation with the hands free cellular phone system, the voice
of other party cannot be heard.
4
Even when the steering wheel voice control switch is operated, the
conversation is not possible.
5
The cellular phone is not recognized or the connection cannot be established.
6
Steering wheel voice control switch illumination does not come on.
7
Check the hands free module power supply circuit.
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