Lancer Shelby L4-135 2.2L SOHC Turbo (1989)
Control Module HVAC: Description and Operation
The PVM receives logic signals from the computer. It then controls the vacuum to the water valve, outside air recirculation, floor-A/C bi-level and
defrost vacuum actuators. The PVM also supplies varied voltage to the blower motor ground circuit for different blower speeds.
