A

HVAC DTC Troubleshooting: A

DTC indicator A:

Climate Control Unit Internal Error

NOTE: Check the battery condition Battery Test.

1. Turn the ignition switch to LOCK (0), and then back to ON (II).

2. Do the Self-Diagnostic Function with the climate control unit.

3. Check for DTCs.

Is DTC A indicated?

YES -

The climate control unit is faulty; replace the climate control unit; with navigation Climate Control Unit Removal/Installation (With Navigation), without navigation Climate Control Unit Removal/Installation (Without Navigation).

NO -

Intermittent failure, the climate control unit is OK at this time. Check for poor connections at the climate control unit and at G502; with navigation, without navigation.