Toyota Camry Manual page 450

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!s there continuity in speaker wire harness?
Yes
Temporarily install another speaker. Functions OK?
Hissing sound from speaker?
Yes
Radio assembly faulty. Recheck system after repair.
Radio
Go to No. 15
if radio side faulty
Radio
Is hiss produced by non–functioning speaker?
!s there continuity in speaker wire harness?
Yes
Temporarily install another speaker. Functions OK?
Radio faulty.
BODY ELECTRICAL SYSTEM
NOISE PRESENT, BUT AM–FM NOT OPERATING
ANY SPEAKER DOES NOT WORK
– AUDIO SYSTEM
Speaker wire harness faulty.
Yes
Speaker faulty.
Power amplifier faulty.
Recheck system after repair.
Radio faulty.
Yes
Radio faulty.
Speaker wire harness faulty.
Yes
Speaker faulty.
BE–131