Radio Preset Memory Is Lost
Radio preset memory is lostNOTE:
- 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. Set each of the radio station preset buttons.
Does each button set properly?
YES - Go to step 3.
NO - Go to step 2.
2. Measure the voltage between audio unit connector A (20P) terminal No. 10 and body ground.
Is there battery voltage?
YES - Go to step 3.
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) terminal No. 10.
3. Reconnect audio unit connector A (20P).
4. Measure the voltage between audio unit connector A (20P) terminal No. 20 and body ground.
Is there less than 0.1 V?
YES - Go to step 5.
NO - Repair open in the wire between the audio unit connector A (20P) terminal No. 20 and body ground (G504).
5. Turn off the ignition switch for 1 minute, then turn it back to ON (II).
6. 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.