Town Car V8-4.6L VIN W (1997)
Control Module HVAC: Description and Operation
A/C BLOWER MOTOR SPEED CONTROL
The A/C blower motor speed control is located in the A/C evaporator core housing and is accessible through the engine compartment.
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The function of the A/C blower motor speed control is to convert low power signals from the EATC assembly to a high current, variable ground
feed for the blower motor.
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A/C blower motor speed is infinitely variable and is controlled by the electronic control assembly software and A/C electronic blend door actuator
position.
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A delay function provides a gradual increase or decrease in A/C blower motor speed under all conditions.
