( TL19E00J36100000000FAAT16 )

Navigation System Symptom Troubleshooting - Interface dial buttons do not work

Interface dial buttons do not work
NOTE:

- Confirm the correct version disc is installed in the navigation unit as the wrong DVD or software version can cause a hardware malfunction.
- Check the connectors for poor connections or loose terminals.
- Make sure that the correct version are installed.
- Inspect the DVD for dirt or damage.
- Check any official Honda service website for more service information about the navigation system.
- 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.
- Check the vehicle battery condition first.

1. Start the vehicle.

1. Go into the Detail Information & Settings select Unit Check, and use Hard Key test under Unit Check.

Does the interface dial buttons work properly?

YES | - | The system is OK at this time.■
NO | - | Go to Step 3 .

1. Measure the voltage between the interface dial 5P connector terminal No. 4 and body ground.

Is there battery voltage?

YES | - | Go to Step 4 .
NO | - | Repair open in the wire between the driver's under-dash fuse/relay box and the interface dial.■

1. Turn the ignition switch to LOCK (0).

1. Disconnect the interface dial 5P connector.

1. Check for continuity between interface dial 5P connector terminal No. 3 and body ground.

Is there continuity?

YES | - | Go to Step 7 .
NO | - | Repair open in the wire between the interface dial and body ground (G401). ■

1. Check for continuity between navigation unit connector B (32P) terminal No. 23 and interface dial 5P connector terminal No. 1.

Is there continuity?

YES | - | Go to Step 8 .
NO | - | There is an open in the circuit between the interface dial and the navigation unit. Replace the affected shielded harness.■

1. Check for continuity between navigation unit connector B (32P) terminals No. 23 and No. 25.

Is there continuity?

YES | - | There is a short in the wire. Replace the affected shielded harness.
NO | - | Go to Step 9 .

1. Substitute a known-good interface dial, and recheck.

Is the system OK?

YES | - | Replace the original interface dial. ■
NO | - | Replace the navigation unit. ■