HVAC Module Cold Boot Process

HVAC MODULE COLD BOOT PROCESS

The purpose of the cold boot process is to allow the HVAC module to re-initialize and calibrate the door actuators. To carry out the cold boot process, follow the steps below.
1. Turn the ignition switch to the OFF position.
2. Disconnect the HVAC module electrical connectors.
3. Wait one minute.
4. Connect the HVAC module electrical connectors.
5. Turn the ignition switch to the ON position.
6. Select any position except OFF on the HVAC module.

The HVAC module will now initialize and calibrate the mode doors. Calibration of the mode doors will take approximately 30 seconds.