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B0210 BUICK

B0210 BUICK - Rear Blower Motor Speed Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Auxiliary (Rear) Blower Motor
  • Auxiliary (Rear) Blower Motor harness is open or shorted
  • Auxiliary (Rear) Blower Motor circuit poor electrical connection
  • Faulty Auxiliary Blower Motor Control Module
  • Faulty Heating, Ventilation, and Air Conditioning (HVAC)
  What does this mean?

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B0210 Buick Description

The Auxiliary Blower Motor Control Module is an interface between the Heating, Ventilation, and Air Conditioning (HVAC) Control Module and the Auxiliary (Rear) Blower Motor. The auxiliary blower motor control module has 5 circuits: a B+ input, ground, a control signal from the HVAC module, a B+ output and a low side Pulse Width Modulation (PWM) control to the Auxiliary (Rear) Blower Motor. The HVAC control module provides a low side (PWM) signal to the auxiliary blower motor control module in order to request the auxiliary blower motor speed. The auxiliary blower motor control module grounds the blower motor using a low side PWM signal in order to vary the auxiliary blower motor speed.
OBDII Code B0210 Buick - Rear Blower Motor Speed Low - AutoCodes.com

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