Radio Preset Memory Is Lost
Radio preset memory is lost1. Set each of the radio station preset buttons.
Does each buttons set properly?
YES - Go to step 4.
NO - Go to step 2.
2. Measure the voltage between No. 17 terminals of the audio unit connector A (17P) and body ground.
Is there battery voltage?
YES - Go to step 3.
NO - Repair open in the wire(s) between No. 8 (10A) fuse in the under - food fuse/relay box and the audio unit.
3. Turn the ignition switch OFF for 1 minute, then turn it back to ON(II).
4. 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.