Troubleshooting Hints

1. CHECK condition of RADIO-I Fuse 17 and RADIO-B Fuse 19. If either Fuse is open, LOCATE and REPAIR cause of overload and REPLACE Fuse(s).
2. CHECK that Ground G201 is clean and tight.
3. See Instrument Panel Dimming for diagnosis of radio illumination problems. Testing and Inspection
4. See Power Antenna for diagnosis of power antenna problems. Antenna
5. See Audio Systems for a description of Audio System controls and for On-Vehicle Service.
^ CHECK for a broken (or partially broken) wire inside the insulation which could cause system malfunction but prove GOOD in a Continuity/Voltage check with a system disconnected. These Circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a Voltage drop with the system operational (under load).
^ CHECK for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (Refer to "General Troubleshooting Procedures,"). Diagnostic Aids