Navigation Display Stays on With Ignition Switch OFF
Navigation display stays on with ignition switch OFFNOTE:
- Always check the connectors for poor connections or loose terminals.
- Before troubleshooting, make sure you have navigation system anti-theft code.
- After troubleshooting, re-enter the anti-theft code, and re-initialize the navigation system.
- Check for Non-OEM accessories using the ACC circuit.
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. The vehicle may have been used as a demonstration vehicle at an event like an auto show. In these events, power is often jumpered to the navigation system so that the ignition key is not needed in the vehicle. At the end of the show, the jumper wire may not have been removed. Check the navigation unit "C" connector (8P) for a "non-factory" jumper wire in series with the factory cable.
Is there a jumper wire?
YES - Remove the jumper wire, and re-test.
NO - Go to step 3.
3. The navigation display or the navigation unit may have been jumpered to allow the navigation system to run without the ignition key.
Does the system function with the ignition switch off?
YES - Go to step 4.
NO - Go to step 5.
4. Remove the navigation display, and check to see if the navigation display unit 20P connector has a non-factory jumper wire in series with the factory connector.
Is there a jumper wire?
YES - Remove the jumper wire, and re-test.
NO - Go to step 5.
5. Check the interior lights with the ignition switch off.
Can you turn on the interior lights with the ignition switch off?
YES - Go to step 6.
NO - Replace the navigation unit.
6. Disconnect Navigation unit connector C (8P).
7. Measure the voltage between navigation unit connector C (8P) terminal No.2 and body ground.
Is there battery voltage?
YES - Repair short to power in the wire.
NO - Replace the navigation unit.