Mitsubishi Evolution X. Manual - part 987

RADIO AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-309

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 the DTC is set.
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 Cope with Intermittent 
Malfunction 

P.00-15

).

DTC B2424: CD player error

CAUTION

Before replacing the radio and CD player, be sure 
to check that the power supply circuit, ground 
circuit, and communication circuit are normal.

.

TROUBLE JUDGMENT

During the use of the radio and CD player, if any of 
the ERROR, ERROR01, ERROR02, ERROR03, 
ERROR DC or ERROR HOT continues for 1 minute, 
the diagnostic trouble code is set.

.

COMMENTS ON TROUBLE SYMPTOM

The radio and CD player or CAN bus line may have a 
problem.

.

PROBABLE CAUSES

• The CAN bus line may be defective.

• The radio and CD player 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.
Use scan tool MB991958 to diagnose the CAN bus lines.

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.

RADIO AND CD PLAYER

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CHASSIS ELECTRICAL

54A-310

.  (1) Connect scan tool MB991958. Refer to "How to connect the 

Scan Tool (M.U.T.-III) 

P.54A-285

."

(2) Turn the ignition switch to "ON" position.
(3) Diagnose the CAN bus line.
Q: Is the check result normal?

YES : Go to Step 2.
NO :  Repair the CAN bus line (Refer to GROUP 54C, 

Diagnosis 

P.54C-14

).

STEP 2. CD check
Playback a clean and unscratched CD for one minute, and 
recheck if the diagnostic trouble code is set to the radio and CD 
player.
(1) Erase the diagnostic trouble code.
(2) Turn the ignition switch from "LOCK" (OFF) position to "ON" 

position.

(3) Playback the clean, unscratched CD for one minute.
(4) Check if diagnostic trouble code is set.
Q: Is the DTC set?

YES : Go to Step 3.
NO :  Clean the CD, use a CD without scratches and burrs, 

or remove the CD burrs, and then reinsert the CD.

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 the DTC is set.
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 Cope with Intermittent 
Malfunction 

P.00-15

).

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

RADIO AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-311

DTC B2450: Switch panel communication

CAUTION

Before replacing the radio and CD player, be sure 
to check that the power supply circuit, ground 
circuit, and communication circuit are normal.

.

Center Panel Unit Power Supply Circuit

FUSIBLE
LINK

36

CENTER PANEL
UNIT

AUDIO SWITCH PANEL

LCD PANEL

RELAY BOX
 ENGINE 
 COMPARTMENT

RADIO AND CD
PLAYER

AC708951BF

C-109

C-124

Connectors: C-109, C-124

AC708972BA

Connectors: C-307, C-317

ETACS-ECU

C-307 (B)

C-317

RADIO AND CD PLAYER

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CHASSIS ELECTRICAL

54A-312

TROUBLE JUDGMENT

If the radio and CD player cannot establish the com-
munication with center panel assembly for 1 minute 
or more, the diagnostic trouble code is set.

.

COMMENTS ON TROUBLE SYMPTOM

The radio and CD player, center panel assembly, or 
CAN bus line may have a problem.

.

TROUBLESHOOTING HINTS

• The CAN bus line may be defective.

• The radio and CD player may be defective.

• The center panel unit may be defective.

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

• 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.
Use scan tool MB991958 to diagnose the CAN bus lines.

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-285

."

(2) Turn the ignition switch to "ON" position.
(3) Diagnose the CAN bus line.
Q: Is the check result 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