Mitsubishi Evolution X. Manual — part 992

RADIO AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-329

.

COMMENTS ON TROUBLE SYMPTOM

If the sound is not output from one of the speakers,
the speaker, radio and CD player, communication
line from the radio and CD player to the speakers
may have a problem.

.

PROBABLE CAUSES

• The speaker may be defective

• The radio and CD player may be defective

• Damaged harness wires and connectors

AC708951BG

C-116

C-23

Connectors: C-23, C-107, C-116, C-117

C-107

C-117 (BR)

AC708950BJ

C-42

C-128

Connectors: C-42, C-101, C-128, C-129

C-129 (BR)

C-101 (B)

AC708954 AO

Connector: D-01

AC708955AK

Connector: D-24

AC608167 AB

Connectors: E-02, E-13

E-02 (B)

E-13

AC608168 AJ

Connectors: E-04, E-11

E-04 (B)

E-11

AC608170 AI

Connector: E-22

AC608169AH

Connector: E-23

RADIO AND CD PLAYER

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CHASSIS ELECTRICAL

54A-330

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. ETACS-ECU coding data check.
(1) Operate the scan tool to read the ETACS-ECU option

coding information (Refer to GROUP 00, Coding Table

P.00-39

).

(2) Check that the "Speaker" is set to "6 speakers".
Q: Is the check result normal?

YES : Go to Step 2.
NO : Operate the scan tool to set the option coding

"Speaker" to "6 speakers", and check the trouble
symptom.

STEP 2. Checking with audio speaker check
Perform the audio speaker check, and check which speaker
does not output the sound (Refer to

P.54A-573

).

NOTE: In the following procedure, check the speaker or
tweeter that is abnormal.
Q: Is the check result normal?

YES (normal for all) : 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

).

NO (Either a speaker is abnormal) : Go to Step 3.

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

RADIO AND CD PLAYER

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CHASSIS ELECTRICAL

54A-331

STEP 3. Check door speaker connector E-13 <front-LH>,
E-11 <front-RH>, E-23 <rear-LH> or E-22 <rear-RH>, or
tweeter connector E-02 <LH> or E-04 <RH> for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is door speaker connector E-13 <front-LH>, E-11

<front-RH>, E-23 <rear-LH> or E-22 <rear-RH>, or
tweeter connector E-02 <LH> or E-04 <RH> in good
condition?
YES : Go to Step 4.
NO : Repair or replace the damaged component(s) (Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

).

STEP 4. Check the speaker or tweeter.
(1) Remove the speaker or tweeter (Refer to

P.54A-575

).

(2) Check that the speaker or tweeter outputs the noise when

the voltage of 5 V is applied to the speaker or tweeter
connector terminal.

Q: Does the speaker or tweeter output the noise?

YES : Go to Step 5.
NO : Replace the speaker or tweeter.

STEP 5. Check radio and CD player connector C-107 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is radio and CD player connector C-107 in good

condition?
YES : Go to Step 6.
NO : Repair or replace the damaged component (Refer to

GROUP 00E, Harness Connector Inspection

P.00E-2

).

RADIO AND CD PLAYER

TSB Revision

CHASSIS ELECTRICAL

54A-332

STEP 6. Check the wiring harness between the speaker or
tweeter connector terminal and the radio and CD player
connector terminal.

• Check the communication lines for open circuit and short

circuit.

• <Front door speaker (LH)> Check the wiring harness

between front door speaker (LH) connector E-13 (terminal
1, 2) and radio and CD player connector C-107 (terminal
28, 38).
NOTE: Also check joint connector C-101 and intermediate
connector C-128 for loose, corroded, or damaged terminals,
or terminals pushed back in the connector. If joint connector
C-101 or intermediate connector C-128 is damaged, repair
or replace the connector as described in GROUP 00E, Har-
ness Connector Inspection

P.00E-2

.

• <Front door speaker (RH)> Check the wiring harness

between front door speaker (RH) connector E-11 (terminal
1, 2) and radio and CD player connector C-107 (terminal
26, 36).
NOTE: Also check joint connector C-101 and intermediate
connector C-116 for loose, corroded, or damaged terminals,
or terminals pushed back in the connector. If joint connector
C-101 or intermediate connector C-116 is damaged, repair
or replace the connector as described in GROUP 00E, Har-
ness Connector Inspection

P.00E-2

.

• <Rear door speaker (LH)> Check the wiring harness

between rear door speaker (LH) connector E-23 (terminal 1,
2) and radio and CD player connector C-107 (terminal 27,
37).
NOTE: Also check intermediate connectors D-24 and C-42
for loose, corroded, or damaged terminals, or terminals
pushed back in the connector. If intermediate connector
D-24 or C-42 is damaged, repair or replace the connector
as described in GROUP 00E, Harness Connector Inspec-
tion

P.00E-2

.

• <Rear door speaker (RH)> Check the wiring harness

between rear door speaker (RH) connector E-22 (terminal
1, 2) and radio and CD player connector C-107 (terminal
25, 35).
NOTE: Also check intermediate connectors C-23 and D-01
for loose, corroded, or damaged terminals, or terminals
pushed back in the connector. If intermediate connector
C-23 or D-01 is damaged, repair or replace the connector
as described in GROUP 00E, Harness Connector Inspec-
tion

P.00E-2

.

• <Tweeter (LH)> Check the wiring harness between tweeter

(LH) connector E-02 (terminal 1, 2) and radio and CD player
connector C-107 (terminal 38, 28).
NOTE: Also check joint connector C-101 and intermediate
connector C-129 for loose, corroded, or damaged terminals,
or terminals pushed back in the connector. If joint connector
C-101 or intermediate connector C-129 is damaged, repair