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B0208 GMC Code - Rear Blower Motor Speed Malfunction

- Code Popularity: 1,231 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC B0208 GMC?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other 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)
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How to Fix the DTC B0208 GMC?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

B0208 01 Rear Blower Motor Speed Circuit Short to Battery
B0208 06 Rear Blower Motor Speed Circuit Low Voltage/Open

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0208 GMC code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code B0208 GMC 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 B0208 GMC - Rear Blower Motor Speed Malfunction  - AutoCodes.com
B0208 GMC Code - Rear Blower Motor Speed Malfunction

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