Trouble Diagnoses
Symptom Possible cause Repair order
Radio inoperative (no digital
display and no sound from
speakers).1. 10A Fuse
2. Poor radio case ground
3. Radio1. Check 10A fuse [No.
3 , located in fuse block (J/B)].
Turn ignition switch ON and verify battery positive volt-
age is present at terminalq
3of radio.
2. Check radio case ground.
3. Remove radio for repair.
Radio controls are
operational, but no sound is
heard from any speaker.1. Radio output
2. Radio1. Check radio output voltages.
2. Remove radio for repair.
Radio presets are lost when
ignition switch is turned OFF.1. 15A fuse
2. Radio1. Check 15A fuse [No.
35 , located in fuse and fusible
box] and verify battery positive voltage is present at
terminalq
9of radio.
2. Remove radio for repair.
Individual speaker is noisy or
inoperative.1. Speaker
2. Radio output
3. Speaker circuit
4. Radio1. Check speaker.
2. Check radio output voltages.
3. Check wires for open or short between radio and
speaker.
4. Remove radio for repair.
Radio stations are weak or
noisy.1. Antenna
2. Poor radio ground
3. Radio1. Check antenna.
2. Check radio ground.
3. Remove radio for repair.
Radio generates noise in AM
and FM modes with engine
running.1. Poor radio ground
2. Loose or missing ground bonding
straps
3. Ignition condenser or rear window
defogger noise suppressor con-
denser
4. Alternator
5. Ignition coil or secondary wiring
6. Radio1. Check radio ground.
2. Check ground bonding straps.
3. Replace ignition condenser or rear window defogger
noise suppressor condenser.
4. Check alternator
5. Check ignition coil and secondary wiring.
6. Remove radio for repair.
Radio generates noise in AM
and FM modes with accesso-
ries on (switch pops and
motor noise).1. Poor radio ground
2. Antenna
3. Accessory ground
4. Faulty accessory1. Check radio ground.
2. Check antenna.
3. Check accessory ground.
4. Replace accessory.
AUDIO
EL-124
CD AUTOCHANGER
Symptom Possible cause Repair order
No play of the CD after CD play
button is pushed.1. Radio
(The radio is not working.)
2. Harness connection
(Magazine does not eject.)
3. Discs
4. Magazine does not eject or a
disc remains in CD player.
5. Changer1. Remove the radio for repair.
2. Check harness connection.
3. Inspect disc.
(Refer to testing magazines and discs.)
4. Reset the changer.
(Disconnect harness connector at the changer and
reconnect after 30 sec.)
5. Remove the changer for repair.
CD skipping. 1. Rough road driving
2. Discs
3. Bracket
4. Changer1. System is not malfunctioning.
2. Inspect discs.
(Refer to testing magazines and discs.)
3. Check and repair bracket and installation of
changer.
4. Remove the changer for repair.
Error code [NO DISC] is shown on
the radio after CD play button is
pressed.1. Magazine setting
2. Magazine
3. Changer1. Confirm the magazine is pushed completely.
2. Inspect magazine.
(Refer to testing magazines and discs.)
3. Remove the changer for repair.
Testing magazines and discs
1. Confirm discs are installed correctly into the magazine (not upside down).
2. Visually inspect/compare the customer's discs with each other and other discs.
Identify any of the following conditions:
IDiscs with a large outside diameter. [Normal size is 120 mm (4.72 in).]
IDiscs with rough or lipped edges.
IDiscs with excessive thickness [Normal size is 1.2 mm (0.047 in).]
IDiscs with scratches, abrasions, or pits on the surface.
IDiscs with grease/oil, fingerprints, foreign material.
IDiscs are warped due to excessive heat exposure.
3. Slide/place the discs in and out of the various magazine positions.
Identify any discs and/or positions that require additional force for placement/ejection. If interference
(sticking, excessive tensions) is found, replace the magazine or the discs.
Note:
IDiscs which are marginally out of specification (ex. dirty, scratched and so on) may play correctly
on a home stereo.
However, when used in the automative environment skipping may occur due to the added vehicle
movement and/or vibration due to road conditions. Autochangers should not be replaced when
discs are at fault.
IUse a soft damp cloth to wipe the discs starting from the center outward in radial direction. Never
use chemical cleaning solutions to clean the discs.
AUDIO
Trouble Diagnoses (Cont'd)
EL-125
