BE/Body Electrical Systems — Cannot Set Station Select Button, Preset Memory Disappears, page 95

BE-95

BODY ELECTRICAL SYSTEM – AUDIO SYSTEM

8 | Radio | CANNOT SET STATION SELECT BUTTON, PRESET MEMORY DISAPPEARS

W : w/ Power Amplifier
WO : w/o Power Amplifier

Can cassette tape be installed in tape player? --Yes--> Radio assembly faulty.
|
No
|
Check RAD No. 1 fuse is OK? --NG--> Replace fuse.
|
OK
|
        W
        Is +B applied to power amplifier? --No--> +B wire harness faulty.
        |
        Yes
        |
        Check if GND (wire harness side) to power amplifier. --NG--> GND faulty.
        |
        OK
|
Is +B applied to radio assembly? --No--> WO +B wire harness faulty.
|                                         W  Power amplifier faulty.
Yes
|
Check if GND (wire harness side) to radio assembly? --NG--> WO GND faulty.
|                                                             W  Power amplifier faulty.
OK
|
Radio assembly faulty.