A/C Blower Motor Speed Control

The A/C blower motor speed control is located on the A/C evaporator housing.

• The function of the A/C blower motor speed control is to convert low power signals from the dual-zone EATC module to a high current, variable ground feed for the blower motor.
• Blower motor speed is infinitely variable and is controlled by the dual-zone EATC control module software.
• A delay function provides a gradual increase or decrease in blower motor speed under all conditions.
• Controls the integral high blower relay which is engaged when maximum fan speed is selected.