Radio Preset Memory Is Lost
Radio preset memory is lostNOTE: If only XM stations are lost, go to XM radio preset memory is lost.
1. Turn the ignition switch ON (II).
2. Turn on the audio unit and set each of the radio station preset buttons.
Do each of the preset buttons set properly?
YES - Go to step 3.
NO - Go to step 5.
3. Turn the ignition switch to LOCK (0) for 1 minute, then turn it back to ON (II).
4. Test all the preset buttons for proper recall operation.
Do the preset buttons recall the set radio stations?
YES - System is normal at this time. Check connections at the audio unit.
NO - Go to step 5.
5. Inspect the No. 6 (10 A) fuse in the under-dash fuse/relay box.
Is it OK?
YES - Go to step 6.
NO - Replace the fuse and reset. If it fails again, repair the short to ground in the harness.
6. Turn the ignition switch to LOCK (0).
7. Remove the audio-HVAC display module, and disconnect audio unit connector A (20P).
NOTE: Eject all the discs before removing the audio unit to prevent damaging the CD player's load mechanism.
8. Measure the voltage between the audio unit connector A (20P) terminal No. 10 and body ground.
Is there battery voltage?
YES - Go to step 9.
NO - Repair open in the wire between No. 6 (10 A) fuse in the under-dash fuse/relay box and audio unit.
9. Reconnect the audio unit connector A (20P).
10. Turn the ignition switch ON (II).
11. Measure the voltage between the audio unit connector A (20P) terminal No. 20 and body ground.
Is there less than 0.1 V?
YES - Replace the audio unit.
NO - Repair open in the wire between the audio unit and body ground (G504). If the wire is OK inspect the ground.