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Re: Blower wiring 09 FREIGHTLINER CASCADIA
Posted to HD/Fleet Forum on 5/25/2018

On a 2006 Freightliner M2, pin 3 is Ground/ black, pin 4 is B+/light blue and pin 5 is the PWM signal for speed control from the control head, greyish blue/338H/thin wire. Grounding this terminal (0% duty cycle on the PWM) makes the motor run full speed. Motor... Login to read more.