XK-8 Convertible (X100) V8-4.0L (AJ26) (1997)
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Control Module HVAC: Description and Operation
Blower Motor Control
Blower Motor Control
The Air Conditioning Control Module (A/CCM) controls the speed of the blower motors which deliver air to the heating/air conditioning unit. The
motors are regulated by power transistor modules which provide linear variation of blower speed.
The blower speed is increased or reduced progressively in response to changes in vehicle speed, to minimize the ram effect of forward motion. The
blower motors are inhibited when heating is requested and the engine coolant temperature is below 30 °C.
