Troubleshooting Hints - AM/FM Stereo Radio With Options
1. Check to see that RADIO and CTSY fuses are not blown. If fuse(s) are blown, locate and repair short or source of overload. Replace Fuses.2. Observe instrument panel lamps. If inoperative, REPAIR before proceeding with RADIO PANEL LAMP diagnosis.
3. Observe heater control lamp, if inoperative, repair (9) circuit before proceeding with DISPLAY DIMMING diagnosis.