Navigation Switch Panel Buttons Inoperative
Navigation switch panel buttons inoperativeDiagnostic Test: Navi System Link
NOTE:
- Confirm the correct DVD color and version disc is installed in the navigation unit as the wrong DVD software version can cause a hardware malfunction.
- Always check the connectors for poor connections or loose terminals.
- Before troubleshooting, get the navigation system anti-theft code.
- After troubleshooting, enter the navigation system anti-theft code.
- If the interface dial and/or joystick do not work, refer to symptom troubleshooting for interface dial and/or joystick do not work.
1. Check fuse No. 14 in the under-dash fuse box.
Is the fuse OK?
YES - Go to step 2.
NO - Replace the fuse.
2. Start the vehicle.
3. Go into the diagnostic mode and use the Hard Key test under Unit Check.
Do the navigation switch panel buttons operate properly?
YES - The system is OK at this time.
NO - Go to step 4.
4. Measure the voltage between the navigation switch panel No. 6 terminal and body ground.
Is there battery voltage?
YES - Go to step 5.
NO - Repair open in the wire between terminal No. 6 and the under-dash fuse box. If there is no open in the wire, replace the under-dash fuse box
5. Measure the voltage between the navigation switch panel No. 4 terminal and body ground.
Is there 0.2 V or less?
YES - Go to step 6.
NO - Repair the open in the wire between the No. 4 terminal and G502
6. Check the connection of the navigation switch panel harness to the interface dial.
Is the connection secure?
YES - Substitute a known-good navigation switch panel. If the problem is resolved, replace the original navigation switch panel. If not, replace the interface dial.
NO - Reconnect the connector.