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Home >> Land Rover >> 2017 >> Range Rover Autobiography >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Auxiliary Climate Control - TDV6 3.0L Diesel/TDV8 4.4L Diesel/V6 S/C 3.0L Petrol/V8 N/A 5.0L Petrol/V8 S/C 5.0L Petrol -- Range Rover/L405 >> Auxiliary Climate Control - TDV6 3.0L Diesel / V6 S/C 3.0L Petrol / V8 N/A 5.0L Petrol / V8 S/C 5.0L Petrol >> Auxiliary Climate Control >> Description And Operation >> Description >> Auxiliary Blower Control Module

Auxiliary Blower Control Module

G11701582

The auxiliary blower consists of an open hub, centrifugal fan powered by an electric motor. Power for the blower is supplied from the auxiliary blower relay in the Rear Junction Box (RJB) via the auxiliary blower control module, which is installed in the left side of the auxiliary climate control assembly, immediately downstream of the blower. To control blower speed, the Automatic Temperature Control Module (ATCM) outputs a Pulse Width Modulation (PWM) signal to the auxiliary blower control module to regulate the voltage of the auxiliary blower power supply.

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