Symptom Troubleshooting

Symptom Troubleshooting: Navigation display stays on with ignition switch in LOCK (0)

Navigation display stays on with ignition switch in LOCK (0)

NOTE:

- Check for aftermarket accessories that may interfere with the navigation system.

- Check the connectors for poor connections or loose terminals.

- Before troubleshooting, make sure you have anti-theft codes for the audio system and the navigation system.

- After troubleshooting, enter the anti-theft codes for the audio system and the navigation system.

- The vehicle may have been used for a show event. Check for a short jumper harness in-line with the navigation unit connector A (8P). If a jumper harness is present, remove it, and return it to Tech Line.

1. Remove the key from the ignition.

Does the navigation screen stay on?
YES - Go to step 2.

NO - The system is OK at this time.


2. Measure the voltage between navigation unit connector A (8P) terminal No. 2 and body ground.

Is there battery voltage?
YES - Repair an open in the wire between the driver's under-dash fuse/relay box and navigation unit connector A (8P).

NO - Replace the navigation unit. Service and Repair