Rear Blower Motor Speed Low
Table of contents
B0210 CADILLAC 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)
How do I fix code B0210 CADILLAC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B0210 CADILLAC code
The cost of diagnosing the B0210 CADILLAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B0210 CADILLAC 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.