K Electrical AIR BAG Service Manual - page 24
AV-24
AUDIO
BOSE SPEAKER AMP.
1.
Remove rear parcel shelf finisher, refer to
EI-31, "Removal and
Installation"
.
2.
Remove trunk trim and trunk lid finisher, refer to
EI-35,
"Removal and Installation"
.
3.
Remove screws and amp.
4.
Disconnect amp. connectors.
Install in the reverse order of removal, noting the following.
STEERING WHEEL AUDIO CONTROL SWITCHES
1.
Remove driver air bag, refer to
SRS-36, "Removal and Installation"
.
2.
Remove screws and audio control switches.
Install in the reverse order of removal.
Trouble Diagnoses
EKS001F7
AUDIO UNIT
BASE AND MIDLINE SYSTEM
Bose speaker amp. mounting screws:
: 2.7 - 3.7 N·m (0.28 - 0.38 kg-m, 24 - 33 in-lb)
LKIA0062E
Symptom
Possible causes
Repair order
Audio unit inoperative (no
digital display and no
sound from speakers).
1. 10A fuse
2. Poor audio unit case ground
3. Audio unit
1. Check 10A fuse [No. 6, located in fuse block (J/B)].
Turn ignition switch ON and verify that battery positive
voltage is present at terminal 10 of audio unit.
2. Check audio unit case ground.
3. Remove audio unit for repair.
Audio unit presets are lost
when ignition switch is
turned OFF.
1. 15A fuse
2. Audio unit
1. Check 15A fuse [No. 31, located in fuse and fusible link
box] and verify that battery positive voltage is present
at terminal 6 of audio unit.
2. Remove audio unit for repair.
AM/FM stations are weak
or noisy.
1. Window antenna or antenna amp.
2. Audio unit ground
3. Audio unit
1. Check window antenna.
2. Check audio unit ground condition.
3. Remove audio unit for repair.
Audio unit generates noise
in AM and FM modes with
engine running.
1. Poor audio unit ground
2. Loose or missing ground bonding straps
3. Ignition condenser or rear window defog-
ger noise suppressor condenser
4. Ignition coil(s) or secondary wiring
5. Audio unit
1. Check audio unit ground.
2. Check ground bonding straps.
3. Replace ignition condenser or rear window defogger
noise suppressor condenser.
4. Check ignition coil(s) and secondary wiring.
5. Remove audio unit for repair.
Audio unit generates noise
in AM and FM modes with
accessories on (switch
pops and motor noise).
1. Poor audio unit ground
2. Antenna
3. Accessory ground
4. Faulty accessory
1. Check audio unit ground.
2. Check antenna.
3. Check accessory ground.
4. Replace accessory.
Symptom
Possible causes
Repair order
Individual speaker is noisy
or inoperative.
1. Speaker
2. Audio unit output
3. Speaker circuit
4. Audio unit
1. Check speaker.
2. Check audio unit output voltages.
3. Check wires for open or short between audio unit.
4. Remove audio unit for repair.