Mitsubishi Evolution X. Manual — part 993
RADIO AND CD PLAYER
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CHASSIS ELECTRICAL
54A-333
or replace the connector as described in GROUP 00E, Har-
ness Connector Inspection
.
• <Tweeter (RH)> Check the wiring harness between tweeter
(RH) connector E-04 (terminal 1, 2) and radio and CD
player connector C-107 (terminal 36, 26).
NOTE: Also check joint connector C-101 and intermediate
connector C-117 for loose, corroded, or damaged terminals,
or terminals pushed back in the connector. If joint connector
C-101 or intermediate connector C-117 is damaged, repair
or replace the connector as described in GROUP 00E, Har-
ness Connector Inspection
.
Q: Is the wiring harness between the speaker or tweeter
connector terminal and the radio and CD player
connector terminal in good condition?
YES : Replace the radio and CD player.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
Inspection Procedure 3: No sound is heard from one of the speakers. <Vehicles with audio amplifier>
CAUTION
Before replacing the ECU, ensure that the power supply circuit, the ground circuit and the communi-
cation circuit are normal.
AUDIO AMPLIFIER
RADIO AND CD CHANGER
RADIO AND CD PLAYER
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CHASSIS ELECTRICAL
54A-334
Speaker System Circuit
AUDIO AMPLIFIER
TWEETER
(LH)
TWEETER
(RH)
FRONT DOOR
SPEAKER (LH)
FRONT DOOR
SPEAKER (RH)
REAR DOOR
SPEAKER
(LH)
REAR DOOR
SPEAKER
(RH)
SUB WOOFER
RADIO AND CD PLAYER
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CHASSIS ELECTRICAL
54A-335
.
COMMENTS ON TROUBLE SYMPTOM
If the sound is not heard from one of the speakers,
the speaker, radio and CD player, audio amplifier,
communication line from the radio and CD player to
the audio amplifier, or communication line from the
audio amplifier to the speaker may have a problem.
Also, the option coding information may be inconsis-
tent.
.
PROBABLE CAUSES
• The speaker may be defective
• The radio and CD player may be defective
• The audio amplifier may be defective
• Option coding information inconsistency
• Damaged harness wires and connectors
AC708951BJ
C-116
C-23
Connectors: C-23, C-24, C-107, C-116, C-117
C-107
C-117 (BR)
C-24
AC708950BH
Connectors: C-128, C-129
C-128
C-129 (BR)
AC708954 AS
Connectors: D-01, D-29, D-30
D-30
D-29
D-01
AC708955AV
Connectors: D-16, D-24
D-16
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-336
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 scan tool MB991958 to read the ETACS-ECU
option coding information (Refer to GROUP 00, Coding
Table
(2) Check that the "Speaker" is set to "Premium."
Q: Is the check result normal?
YES : Go to Step 2.
NO : Operate scan tool MB991958 to set the option coding
"Speaker" to "Premium," 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
).
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
NO (Either a speaker is abnormal) : Go to Step 3.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
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