Toyota Celica 2005 Repair Manual page 2293

BE−118
25 Power Amplifier
Is radio operating normally?
No
Is hiss noise produced by non−functioning speaker?
No
Does continuity exist in speaker wire harness?
Yes
Temporarily install another speaker.
Functions OK?
No
Power amplifier faulty.
Recheck system after repair.
2005 CELICA (RM1131U)
BODY ELECTRICAL
ANY SPEAKER DOES NOT WORK
− AUDIO SYSTEM
CD player faulty.
Yes
Radio assembly faulty.
Yes
Recheck system after repair.
Speaker wire harness faulty.
No
Speaker faulty.
Yes
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