B0194 GMC - Front Blower Motor Speed Circuit Range/Performance
B0194 GMC Possible Causes
- Faulty Front Blower Motor
- Front Blower Motor harness is open or shorted
- Front Blower Motor circuit poor electrical connection
- Faulty Blower Motor Control Module
First diagnose B0194 GMC code
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 terminals.
Cost of diagnosing the B0194 GMC code
Labor: 1.0The cost of diagnosing the B0194 GMC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
B0194 GMC Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B0194 GMC MeaningThe Blower Motor Control Module is an interface between the Heating, Ventilation, and Air Conditioning (HVAC) Control Module and the blower motor. The blower motor speed control from the HVAC control module, battery positive and ground circuits enable the blower motor control module to operate. The HVAC control module provides a Pulse Width Modulation (PWM) signal to the blower motor control module in order to command the blower motor speed. The blower motor control module transfers the PWM signal into a corresponding blower motor voltage. The voltage resides between 2-13 V and changes linear to the height of the PWM signal.
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