Radio Preset Memory Is Lost
Radio preset memory is lost1. Turn the ignition switch to ON (II).
2. Turn on the audio unit and set each of the radio station preset buttons.
Does each button set properly?
YES - Go to step 5.
NO - Go to step 3.
3. Measure the voltage between No. 17 terminals of audio unit connector A (17P) and body ground.
Is there battery voltage?
YES - Go to step 4.
NO - Repair open in the wire(s) between No. 8 (10 A) fuse in the under-food fuse/relay box and the audio unit.
4. Turn the ignition switch to LOCK (0) for 1 minute, then turn it back to ON (II).
5. Test the preset buttons for proper recall operation.
Do the preset buttons recall the set radio stations?
YES - System is normal at this time. Check the connections at the audio unit.
NO - Replace the audio unit.