1997 TOYOTA SUPRA Service Repair Manual

Page 233 of 1807

TOYOTA SUPRA 1997  Service Repair Manual 1 Radio RADIO NOT OPERATING WHEN POWER SWITCH TURNED TO ºONº
+ B wire harness faulty.
GND faulty.
Power amplifier or wire harness faulty.
Power amplifier or wire harness faulty.
GND faulty.
Check if

Page 234 of 1807

TOYOTA SUPRA 1997  Service Repair Manual 2 RadioDISPLAY INDICATES WHEN POWER SWITCH TURNED TO
ºONº, BUT NO SOUND (INCLUDING ºNOISEº) IS PRODUCED
+ B wire harness faulty.
GND faulty.
Power amplifier faulty.
Speaker wire harness faulty. GN

Page 235 of 1807

TOYOTA SUPRA 1997  Service Repair Manual Speaker wire harness faulty. Is tape player operating normally?
Ye s
No
Radio assembly faulty.
Recheck system after repair. Radio assembly faulty.
Temporarily install another speaker? Functions OK?
Po

Page 236 of 1807

TOYOTA SUPRA 1997  Service Repair Manual 5 RadioANY AM OR FM DOES NOR WORK 
FEW PRESET TUNING BANDS
Problem with radio wave signals or location?
Are both AM and FM defective?Radio assembly faulty.
Go to No.16
Is tape player operating normall

Page 237 of 1807

TOYOTA SUPRA 1997  Service Repair Manual 6
Radio
POOR RECEPTION
Is the condition bad in comparison with other vehicle?
Are there any additional installation parts?
(Sun shade film, telephone antenna, etc.)
Check if there is any scratch and b

Page 238 of 1807

TOYOTA SUPRA 1997  Service Repair Manual 7 Radio SOUND QUALITY POOR
Ye sNo
Ye s
NG
OK Is sound quality always bad?
Is tape player operating normally?Poor signals, poor location.
Radio assembly faulty.
Install properly.
Speaker faulty. Is tap

Page 239 of 1807

TOYOTA SUPRA 1997  Service Repair Manual 9 Tape Player CASSETTE TAPE CANNOT BE INSERTED
Ye s
No NG Is there a foreign object inside tape player?
Is auto search button radio operating normally?
Check if RADIO No.1 fuse is OK?
Is +B applied to

Page 240 of 1807

TOYOTA SUPRA 1997  Service Repair Manual 11 Tape Player POWER COMING IN, BUT TAPE PLAYER NOT OPERATING
Ye s
NoRadio assembly faulty. Cassette tape faulty.
Speaker wire harness faulty.
Speaker faulty.
Power amplifier faulty.
Recheck system af