Mitsubishi Evolution X. Manual - part 1048

SATELLITE RADIO TUNER

TSB Revision

CHASSIS ELECTRICAL

54A-553

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-537

."

(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 audio 
diagnostic trouble code.
Check if DTC is set to the radio and CD player.
Q: Is the DTC set?

YES : Troubleshoot the audio (Refer to 

P.54A-288

).

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 

P.00-15

).

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

SATELLITE RADIO TUNER

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CHASSIS ELECTRICAL

54A-554

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 satellite radio tuner 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 satellite radio tuner 
determines that a problem has occurred.

.

TROUBLESHOOTING HINTS

• The CAN bus line may be defective.

• The satellite radio tuner 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)

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-537

."

(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

SATELLITE RADIO TUNER

TSB Revision

CHASSIS ELECTRICAL

54A-555

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.
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 

P.00-15

).

TROUBLE SYMPTOM CHART

M1544016400033

Inspection 
Procedure No.

Trouble symptom

Reference page

1

A satellite radio cannot be received.

P.54A-556

2

Check the satellite radio tuner power supply circuit.

P.54A-561

3

The error code "ANTENNA ERROR" is displayed on the display.

P.54A-564

SATELLITE RADIO TUNER

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CHASSIS ELECTRICAL

54A-556

SYMPTOM PROCEDURES

Inspection Procedure 1: A satellite radio cannot be received.

CAUTION

Before replacing the satellite radio tuner, antenna 
feeder, radio and CD player <vehicles with radio 
and CD player> or multivision display <vehicles 
with MMCS>, ensure that the power supply cir-
cuit, the ground circuit and the communication 
circuit are normal.

Satellite Radio Tuner Communication Circuit <Vehicles with Radio and CD Player>

RADIO AND CD PLAYER

SATELLITE RADIO TUNER