HVAC - Without A/C

HVAC DTC Troubleshooting: 7

DTC indicator 7: Heater Control Panel Internal Error

NOTE: Check the battery condition Testing and Inspection and the charging system. Charging System Indicator Circuit Troubleshooting

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

2. Do the self-diagnostic with the heater control panel. How To Troubleshoot The Heating System (Without A/C)

3. Check for DTCs.

Is DTC 7 indicated?
YES - The heater control panel is faulty, replace the heater control panel. Heater Control Panel Removal/Installation (Without A/C)

NO - Intermittent failure, the heater control panel is OK at this time.