refer to the diagnostic tests. Refer to Group 8W, Wir-
ing Diagrams for Pin numbers and location.
REMOTE CD CHANGER
The remote CD changer is located in the center
console and is capable of holding up to six discs in a
magazine. The magazine can be ejected at anytime
that the ignition switch is in the ON position. After
the ignition switch is turned OFF, the magazine can
only be ejected within one minute. After that period,
the magazine will be locked in the CD changer.
DIAGNOSIS AND TESTING
AUDIO DIAGNOSTIC TEST PROCEDURES
CAUTION: The CD player will only operate between
approximate temperatures of -23°C and +65°C (-10°F
and +145°F).
Whenever a radio malfunction occurs;
(1) First check FUSES in the Fuse Block:
(a) Fuse 5, Memory feed and the Power Antenna
(if equipped)
(b) Fuse 7, Illumination
(c) Fuse 8, Power Amplifier
(d) Fuse 14, Ignition feed
NOTE: The vehicles are shipped with the INTERIOR
LAMP fuse disconnected.
(2) Verify, the radio wire harness is properly con-
nected before starting normal diagnosis and repair
procedures. Refer to Audio Diagnostic Charts and/or
Group 8W, Wiring Diagrams.
DIAGNOSTIC CONDITIONS
NOISE DISTORTION IN ALL SPEAKERS
Does the distortion occur through all operations:
• AM and FM stations
• Cassette tape
• Compact disc
If not, check for radio interference, damaged tape
or disc that may be causing the distortion. Refer to
Sound Systems Operating Instructions in the Owners
Manual for cleaning procedures of the cassette tape
player.
• Check battery voltage, for 11 Volts or more
• Check amplifier connectors, and wires for proper
connection
• If OK, check radio, refer to Radio Diagnosis
• If OK, replace amplifier
ELECTRICAL NOISE DISTORTION ONE SPEAKER
• Remove output signal connector from amplifier
and check for short to ground on the speaker with
the distortion. Refer to Group 8W, Wiring Diagrams
for the appropriate pin numbers.
• If shorted to ground, disconnect speaker connec-
tor and recheck from the amplifier for short to
ground.
• If still shorted to ground, repair wires. Not
shorted to ground, replace speaker.
• Not shorted to ground, check speaker resistance
at amplifier connector for three to eight ohms.
• If resistance is OK, refer to Radio Diagnosis. If
radio checks OK, replace amplifier.
• If resistance is less than three ohms, replace
speaker. If resistance is OK, repair wires
MECHANICAL NOISE DISTORTION
• Check trim for loose parts, and speaker attach-
ments for buzzes
• Remove speaker that is still connected and lis-
ten for distortion. If distortion remains, replace
speaker.
ONE SPEAKER NON-OPERATIVE
• Remove output signal connector from amplifier
and check for three to eight ohms resistance to the
non-operative speaker. Refer to Group 8W, Wiring
Diagrams for the appropriate pin numbers.
• If resistance is less than three ohms, speaker is
OK.
• If OK, repair wire. If not OK, replace speaker.
ALL SPEAKERS NON-OPERATIVE
• Check radio for being ON, are the display lights
on
• Radio not ON, refer to Radio Diagnosis
• Check fuses, amplifier connectors and wires for
proper connection
• Check for good ground
• Check amplifier, for battery voltage and
ON/OFF voltage
(1) Battery voltage OK and NO voltage at the
ON/OFF terminal, check for short or open in the
ON/OFF circuit.
(2) ON/OFF voltage OK, and NO battery voltage,
check for short or open in battery circuit.
(3) Prior to replacing amplifier check fuse to the
cigar lighter and horn. If not OK, replace fuse. If fuse
blows again disconnect amplifier B+ wire connector.
Refer to Group 8W, Wiring Diagrams for the proper
connector.
(4) If fuse still blows the problem is not the ampli-
fier. If fuse does not blow replace the amplifier.
(5) If shorted or open circuit repair as necessary.
8F - 2 AUDIO SYSTEMS JA
DESCRIPTION AND OPERATION (Continued)
To Next Page
Loading...
