A/C & Heater System Mode Door

Anytime negative battery cable is disconnected or battery voltage to Body Control Module (BCM) is less than 10 volts, mode door for A/C and heater system must be recalibrated. Mode door for A/C and heater system may be recalibrated by using scan tool. Following instructions on scan tool, recalibrate mode door for A/C and heater system.