Manufacturer Code Charts: 1203

Navigation System DTC Troubleshooting: 1203

DTC 1203:

DVD Temp Error

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- This navigation DTC sets when the internal temperature of the ECU falls below -4 °F (-20 °C) or above 158 °F (70 °C). The unit is designed to shut down to protect the ECU. This is usually caused by exterior temperatures. Do the troubleshooting when the unit is within the allowable temperature range.
- Before you troubleshoot, make sure to follow the General Troubleshooting Information How to Troubleshoot the Navigation System.

1. Check that the temperature is between -4 °F (-20 °C), below 158 °F (70 °C) in dash.

2. Check the most recent DTC.

3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then back to ON (II), or press the engine start/stop button to select the ON mode.

4. Check the most recent DTC.

Is DTC 1203 indicated at the time you cycled the vehicle?

YES -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�

NO -

Go to step 5.

5. Check the audio-navigation unit cooling fan on the back of the audio-navigation unit to see if it is blocked.

Is the fan blocked?

YES -

Clean or clear the audio-navigation unit cooling fan, and recheck.�

NO -

Intermittent failure, the system is OK at this time. If the vehicle repeatedly comes back with the navigation DTC, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�