Several combinations of radio receivers and speaker systems are offered on this vehicle. A rear seat video system
is also available. The audio system receives fused battery current from a fuse in the Integrated Power Module (IPM)
at all times.

AUDIO/VIDEO - SERVICE INFORMATION

8A - 157

A navigation radio is available on this vehicle. With this system, the operator has the option of choosing a street
address, point of interest, trip itinerary and other features outlined in the operator’s manual. The audio/video system
includes the following components:

•

Amplifier

•

Antenna (Radio, Navigation, Satellite)

•

Clockspring (with remote radio switches only)

•

DVD Player

•

Radio noise suppression components

•

Radio receiver

•

Remote radio switches (if equipped)

•

Speakers

•

Video Monitor

DIAGNOSIS AND TESTING

AUDIO SYSTEM

Any diagnosis of the Audio system should begin with the use of a scan tool and the appropriate Diagnostic
Service information.

Refer to the appropriate wiring information.

NOTE:

WARNING: DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, SEAT BELT TENSIONER, SIDE AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MIN-
UTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNO-
SIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE
THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.

AUDIO SYSTEM DIAGNOSIS TABLE

CONDITION

POSSIBLE CAUSES

CORRECTION

NO AUDIO

1. Fuse inoperative.

1. Check radio fuse and Ignition-Off Draw (IOD)
fuse in the Integrated Power Module (IPM).
Replace fuses, if required.

2. Radio/amplifier (if
equipped) connector
damaged.

2. Check for loose or corroded radio/amplifier
connector. Repair, if required.

3. Wiring damaged.

3. Check for shorted or open wires. Repair wiring,
if required.

4. Radio/amplifier (if
equipped) ground damaged.

4. Check for continuity between radio chassis and
a known good ground. There should be
continuity. Repair ground, if required.

5. Radio/amplifier (if
equipped) inoperative.

5. Refer to appropriate Diagnostic Service
Information.

6. Speakers inoperative.

6. Refer to speaker diagnosis.

NO RADIO DISPLAY

1. Fuse inoperative.

1. Check radio fuse and Ignition-Off Draw (IOD)
fuse in Integrated Power Module (IPM). Replace
fuses, if required.

2. Radio connector
damaged.

2. Check for loose or corroded radio connector.
Repair, if required.

8A - 158

AUDIO/VIDEO - SERVICE INFORMATION

CONDITION

POSSIBLE CAUSES

CORRECTION

3. Wiring damaged.

3. Check for battery voltage at radio connector.
Repair wiring, if required.

4. Radio ground damaged.

4. Check for continuity between radio chassis and
a known good ground. There should be
continuity. Repair ground, if required.

5. Radio inoperative.

5. Refer to appropriate Diagnostic Service
Information.

CLOCK WILL NOT KEEP
SET TIME

1. Fuse inoperative.

1. Check Ignition-Off Draw (IOD) fuse in the
Integrated Power Module (IPM). Replace fuse, if
required.

2. Radio connector
damaged.

2. Check for loose or corroded radio connector.
Repair, if required.

3. Wiring damaged.

3. Check for battery voltage at radio connector.
Repair wiring, if required.

4. Radio ground faulty.

4. Check for continuity between radio chassis and
a known good ground. There should be
continuity. Repair ground, if required.

5. Radio inoperative.

5. Refer to appropriate Diagnostic Service
Information.

POOR RADIO RECEPTION

1. Antenna inoperative.

1. (Refer to 8 - ELECTRICAL/AUDIO/ANTENNA
BODY & CABLE - DIAGNOSIS AND TESTING).

2. Radio ground damaged.

2. Check for continuity between radio chassis and
a known good ground. There should be
continuity. Repair ground, if required.

3. Radio noise suppression
damaged.

3. Repair or replace ground strap as necessary.

4. Radio inoperative.

4. Refer to appropriate Diagnostic Service
Information.

SOUND DISTORTION
(VIBRATION FROM
SPEAKER AREA, BUZZING -
HUMMING)

1. Door trim panel loose or
missing fasteners.

1. Inspect door trim panel and correct as
necessary. Replace any misssing fasteners.

2. Water shield loose or
misaligned.

2. Inspect water shield and adjust as required.

3. Items placed in door trim
panel map pockets vibrating
or moving from side to side.

Remove items from door trim panel. Ensure that
vibration is no longer present.

AVOID USING CD’S OR DVD’S WITH HOME-
MADE TYPE ADHESIVE LABELS AS THEY MAY
CAUSE DISC TO BECOME JAMMED IN
PLAYER

NO COMPACT DISC
OPERATION

1. CD faulty.

1. Insert known good CD and test operation.

2. Foreign material on CD.

2. Clean CD and test operation.

3. Condensation on CD or
optics.

3. Allow temperature of vehicle interior to stabilize
and test operation.

4. Radio inoperative.

4. Refer to appropriate Diagnostic Service
Information.

AUDIO/VIDEO - SERVICE INFORMATION

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