Mitsubishi Montero (2004+). Manual — part 539
RADIO WITH TAPE PLAYER AND CD PLAYER
TSB Revision
CHASSIS ELECTRICAL
54A-125
INSPECTION
M1543019500649
CIGARETTE LIGHTER CHECK
• Take out the plug, and check for a worn edge on the ele-
ment spot connection, and for shreds of tobacco or other
material on the element.
• Using an ohmmeter, check that the element resistance
value is 1.7 ohm.
RADIO WITH TAPE PLAYER AND CD PLAYER
GENERAL DESCRIPTION
M1544000100077
Anti-theft system
After the power supply to the radio, tape player and
CD player has been interrupted for one hour or more,
the anti-theft system will prevent the radio, tape
player and CD player from working, even if the power
supply is restored.
RADIO WITH TAPE PLAYER AND CD PLAYER, SPEAKER AND ANTENNA
DIAGNOSIS
INTRODUCTION TO AUDIO SYSTEM DIAGNOSIS
M1544004700082
The diagnosis for symptoms such as noise being
emitted, no sound being played, or sound coming
only out of one speaker (or set of speakers) is pro-
vided.
AUDIO SYSTEM DIAGNOSTIC TROUBLESHOOTING STRATEGY
M1544004800302
Use these steps to plan your diagnostic strategy. Fol-
low through with each step to ensure that you have
exhausted all possible methods of finding an audio
system fault.
1. Gather information from the customer.
2. Verify that the condition described by the
customer exists.
3. Find the malfunction by following the Symptom
Chart.
4. Verify that the malfunction is eliminated.
ACX01832 AB
ELEMENT
SPOT
RADIO WITH TAPE PLAYER AND CD PLAYER
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CHASSIS ELECTRICAL
54A-126
TROUBLE SYMPTOM CHART
M1544004900451
SYMPTOM
INSPECTION
PROCEDURE
REFERENCE
PAGE
When power switch is turned "ON," no power is available
1
No sound. <vehicles with amplifier>
2
No sound from one speaker. <vehicles without amplifier>
3
No sound from one speaker. <vehicles with amplifier>
4
Noise
Noise is present while moving (AM).
5
Noise is present while moving (FM).
6
Sound mixed with noise, only at night (AM).
7
Noise is overpowering both AM and FM.
8
Excessive noise on AM and FM.
9
Noise is detected with engine running.
10
Noise Appears during vibration or shocks.
11
Noise sometimes appears on FM during traveling.
12
Constant noise.
13
Radio
There is noise but no reception for both AM and FM or
no sound from AM, or no sound from FM.
14
Poor reception.
15
Distortion on AM and/or FM.
16
Distortion on FM only.
17
Using the auto select function, too few automatic
stations are selected.
18
Preset stations are erased.
19
CD player, CD
auto changer
CD can not be inserted.
20
No sound (CD only).
21
CD sound skips.
22
Sound quality is poor.
23
CD cannot be ejected.
24
RADIO WITH TAPE PLAYER AND CD PLAYER
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CHASSIS ELECTRICAL
54A-127
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: When Power Switch is Turned "ON," no Power is Available.
.
IGNITION
SWITCH (ACC)
FUSIBLE
LINK
1
JUNCTION
BLOCK
RADIO AND CD PLAYER
RELAY
BOX
RELAY
BOX
Radio and Tape Player Power Supply Circuit
AC204170
CONNECTORS : D-06, D-28
DJ
D-06
D-28
AC204173
CONNECTORS : D-208, D-221
BJ
D-208
D-221
RADIO WITH TAPE PLAYER AND CD PLAYER
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CHASSIS ELECTRICAL
54A-128
CIRCUIT OPERATION
Power is supplied to the radio and CD player when
the ignition switch is in the "ACC" position or "ON"
position. When the ignition is switched on, the radio
and CD player will return to the previous state when
the ignition was switch off at the last time.
.
TECHNICAL DESCRIPTION (COMMENT)
The cause is probably a faulty radio and CD player
power supply circuit system circuit.
.
TROUBLESHOOTING HINTS
• Damaged wiring harness or connector.
• Malfunction of the radio and CD player.
DIAGNOSIS
Required Special Tool:
• MB991223: Harness set
STEP 1. Check to see that the radio and CD player is
energized when the power switch is turned ON.
(1) Turn the ignition switch to "ACC" position.
(2) Turn ON the radio and CD player power switch.
Q: Is the radio and CD player energized when the power
switch is turned ON?
YES : Go to Step 2.
NO : Go to Step 5.
STEP 2. Check radio and CD player connector D-06 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are radio and CD player connector D-06 in good
condition?
YES : Go to Step 3.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. If the power switch is turned on, the radio
and CD player should operate normally.
AC204170
CONNECTOR : D-06
CS
HARNESS SIDE
1
7
2
8
10
11
5
13
6
14
12
4
9
3
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