Radio Preset Memory Is Lost
Radio preset memory is lostNOTE:
- Check the vehicle battery condition first.
- Always check the connectors for poor connections or loose terminals.
- If only XM stations are lost, go to XM radio preset memory is lost.
1. 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 4.
NO - Go to step 3.
3. Measure the voltage between audio unit connector A (20P) No. 10 terminal and body ground.
Is there battery voltage?
YES - Go to step 4.
NO - Repair open in the wire between the No. 5 (7.5 A) fuse and driver's under-dash fuse/relay box and audio unit connector A (20P) No. 10 terminal.
4. Reconnect audio unit connector A (20P).
5. Measure the voltage between audio unit connector A (20P) No. 20 terminal and body ground.
Is there less than 0.1 V?
YES - Go to step 6.
NO - Repair open in the wire between audio unit connector A (20P) No. 20 terminal and body ground (G504).
6. Turn the ignition switch to LOCK (0) for 1 minute, then turn it back to ON (II).
7. 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 connections at the audio unit.
NO - Replace the audio unit.