Subaru XT 1988 Service Manual page 1388

6-3 WIRING DIAGRAM AND TROUBLESHOOTING
1) Radio
(1) Low sensitivity
Turn ignition switch to ACC.
Check radio for accurate tuning.
Yes
Check antenna trimmer for prop-
er adjustment.
Yes
Installing another antenna to see
if sensitivity increases.
Yes
(2) Noisy reception
Start up engine.
Check radio for noise while
operating other electrical parts.
Yes
Noise dies when antenna is re-
moved from radio.
Yes
Check antenna feeder and harness
for close arrangement.
Yes
Inaccurate tuning. Reset tuning knob.
Trimmer out of adjustment. Readiust trimmer.
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N
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. . - : - - - - - - - - - -... , ..
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Repair or replace radio.
No
No
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I No I
Defective antenna grounding or
insulation.
Crunching sound Fuel unit
Howling sound Wiper motor
Scratching sound Ignition coil
Whisling sound Alternator
Radio is defective.
Loud noise from outside.
Defective antenna grounding.
116
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Tighten screws securing antenna
or replace antenna.
Repair connection at grounded
part, or replace condenser.
Repair or replace radio.
Radio is in good condition.
Check and repair grounded part.
I Arrange feeder wiring apart from
harness.
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