Afterblow Function

The afterblow function helps to removes condensation from the evaporator core.

The PZM begins a timed delay after the ignition is turned OFF. After the delay time elapsed, the PZM sends a serial data message to the heater and NC programmer in order turn on the blower. After the afterblow function is complete, the heater and NC programmer turns off the blower. Then the heater and A/C programmer sends a serial data message to the PZM in order to enable the battery guard function.