BE/Body Electrical Systems — Cd Player Either Speaker Does Not Work / Cd Player Woofer Speaker Does Not Work, page 105

BE–105
BODY ELECTRICAL SYSTEM – AUDIO SYSTEM

23 | CD Player | EITHER SPEAKER DOES NOT WORK

Is radio operating normally?
Yes → CD player faulty.
No
Is hiss produced by non–functioning speaker?
Yes → Radio assembly faulty. Recheck system after repair.
No
Is there continuity in speaker wire harness?
No → Speaker wire harness faulty.
Yes
Temporarily install another speaker. Functions OK.
Yes → Speaker faulty.
No
Power amplifier faulty. Recheck system after repair.

24 | CD Player | WOOFER SPEAKER DOES NOT WORK

Check if RAD No. 1 fuse is OK?
No → Replace fuse
Yes
Is radio operating normally?
Yes → Radio receiver assembly faulty.
No
Check if GND to power amplifier is OK?
No → GND faulty.
Yes
Is +B applied to power amplifier
No → +B wire harness faulty.
Yes
Is AMP applied to power amplifier?
No → Check the radio receiver assembly.
Yes
Is there continuity in wire harness? (Radio receiver to power amplifier)
No → Wire harness faulty.
Yes
Temporarily install another woofer speaker. Functions OK?
Yes → Woofer speaker faulty.
No
Is there continuity in speaker wire harness?
No → Speaker wire harness faulty.
Yes
Temporarily install another power amplifier. Functions OK?
No → Radio receiver assembly faulty.
Yes
Power amplifier faulty.