Audio Unit Frequently Asks For the Anti-Theft Code
Audio unit frequently asks for the anti-theft code1. Turn the ignition switch OFF.
2. Measure the voltage between the audio unit connector A (20P) terminal No. 10 and body ground.
Is there battery voltage?
YES - Check for an intermittent open in the wire between the under-dash fuse/relay box and audio unit connector A (20P) terminal No. 10. If the wire is OK, go to step 3.
NO - Repair open in the wire between the under-dash fuse/relay box and audio unit connector A (20P) terminal No. 10.
3. Measure the voltage between the audio unit connector A (20P) terminal No. 20 and body ground.
Is there less than 0.1 V?
YES - Check for an intermittent open in the wire between the audio unit connector A (20P) terminal No. 20 and body ground (G504). If the wire is OK, replace the audio unit.
NO - Repair open in the wire between the audio unit connector A (20P) terminal No. 20 and body ground (G504).