Power Coming In, But Tape Player Not Operating - Toyota Hilux Surf 1993 Owner's Manual

Tape Player
[S] Radio + Tape Player [U] Radio–Tape Player (Built–in Power Amplifier)
[P] Radio–Tape Player (Separate Power Amplifier)
Functions OK if different cassette tape in-
serted?
Is radio operating normally?
Is there, continuity in speaker wire harness?
Yes
Temporarily install another speaker. Functions
OK?
No
Hissing sound from speaker?
Yes
Radio assembly faulty. Recheck system after repair.
BODY ELECTRICAL SYSTEM
POWER COMING IN, BUT TAPE PLAYER NOT
OPERATING
[S][U]
Tape player faulty.
Radio assembly faulty.
– Audio System
Yes
Cassette tape faulty.
Yes
Tape player faulty.
Radio assembly faulty.
Speaker wire harness faulty.
Yes
Speaker faulty.
Power amplifier faulty. Recheck system after
repair.
BE–101