Mitsubishi Evolution X. Manual — part 1047
SATELLITE RADIO TUNER
TSB Revision
CHASSIS ELECTRICAL
54A-549
STEP 2. Using scan tool MB991958 read the combination
meter diagnostic trouble code.
Check whether a combination meter DTCs are set or not.
(1) Turn the ignition switch to the "ON" position.
(2) Check for combination meter DTCs.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Diagnose the combination meter (Refer to
combination meter, Diagnosis
NO : Go to Step 3.
STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the satellite radio tuner.
(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 satellite radio tuner.
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 U0164: A/C CAN timeout
CAUTION
• If DTC U0164 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 A/C-ECU cannot be received, the
satellite radio tuner sets DTC U0164.
.
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-
nication with A/C-ECU cannot be established for
2,500 ms or more, the satellite radio tuner deter-
mines that a problem has occurred.
.
TROUBLESHOOTING HINTS
• The CAN bus line may be defective.
• The A/C-ECU may be defective.
• The satellite radio tuner 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)
SATELLITE RADIO TUNER
TSB Revision
CHASSIS ELECTRICAL
54A-550
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 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 satellite radio tuner.
(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 satellite radio tuner.
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
SATELLITE RADIO TUNER
TSB Revision
CHASSIS ELECTRICAL
54A-551
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
satellite radio tuner 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 satellite radio tuner determines that a prob-
lem 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 satellite radio tuner 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
SATELLITE RADIO TUNER
TSB Revision
CHASSIS ELECTRICAL
54A-552
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 satellite radio tuner.
(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 satellite radio tuner.
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 U0184: Audio CAN timeout
CAUTION
• If DTC U0184 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 radio and CD player cannot be
received, the satellite radio tuner sets DTC U0184.
.
JUDGMENT CRITERIA
After the following statuses continue to be true for 5
seconds, if the communication with the radio and CD
player cannot be established for 0.6 second or more,
the satellite radio tuner determines that a problem
has occurred.
• No abnormality is present to the network.
• Ignition switch is in the ON position.
• No abnormality is present to the power supply
fuse, or the odometer value is at 80.5 km (50.0
miles) or more.
• ETACS-ECU system voltage is at 10−16 volts.
.
TROUBLESHOOTING HINTS
• The radio and CD player may be defective.
• The satellite radio tuner 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)
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