Maxima GLE V6-3.5L (VQ35) (2002)
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Control Module HVAC: Description and Operation
Automatic A/C
Automatic Amplifier (Auto Amp.)
The auto amplifier has a built-in microcomputer which processes information sent from various sensors needed for air conditioner operation. The air mix
door motor, mode door motor, intake door motor, blower motor and compressor are then controlled.
The auto amplifier is unitized with control mechanisms. Signals from various switches and Potentio Temperature Control (PTC) are directly entered into
auto amplifier.
Self-diagnostic functions are also built into auto amplifier to provide quick check of malfunctions in the auto air conditioner system.
Potentio Temperature Control (PTC)
The PTC is built into the A/C auto amp. or Display and NAVI control unit. It can be set at an interval of 0.5 °C (1.0 °F) in the 18 °C (60 °F) to 32 °C
