AutoCodes – GMC – B0193 2017 GMC Sierra

B0193 2017 GMC Sierra Code - Front Blower Motor Speed Circuit

Quick Answer

The blower motor speed control signal from the Heating, Ventilation and Air Conditioning (HVAC) Control Module, battery positive, and ground circuits enable the blower motor to operate. Common causes include Faulty Front Blower Motor, Front Blower Motor harness is open or shorted, Front Blower Motor circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B0193 2017 GMC Sierra indicates Front Blower Motor Speed Circuit.
Common causes: Common causes include Faulty Front Blower Motor, Front Blower Motor harness is open or shorted, Front Blower Motor circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 220

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 11, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code B0193 2017 GMC Sierra Description

The blower motor speed control signal from the Heating, Ventilation and Air Conditioning (HVAC) Control Module, battery positive, and ground circuits enable the blower motor to operate. The blower motor control circuitry is integrated into the blower motor assembly. The HVAC control module provides a ground Pulse Width Modulation (PWM) signal to the blower motor to request a specific motor speed. The blower motor translates the PWM signal and drives the motor accordingly.

OBDII Code B0193 2017 GMC Sierra - Front Blower Motor Speed Circuit - AutoCodes.com — B0193 2017 GMC Sierra Code - Front Blower Motor Speed Circuit

What does this mean?

What are the Possible Causes of the DTC B0193 2017 GMC Sierra?

Faulty Front Blower Motor
Front Blower Motor harness is open or shorted
Front Blower Motor circuit poor electrical connection
Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module

How to Fix the DTC B0193 2017 GMC Sierra?

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

What does this mean?

Code Tech Notes

B0193:01 Front Blower Motor Speed Circuit Short to Battery
B0193:06 Front 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 B0193 2017 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B0193 2017 GMC Sierra Code

1. What are common symptoms of OBDII code B0193 in a 2017 GMC Sierra related to the front blower motor speed circuit?

- Common symptoms include the front blower motor not functioning at all or operating intermittently at various speeds.

2. What are potential causes of OBDII code B0193 in a 2017 GMC Sierra?

- Possible causes include a faulty blower motor, damaged wiring or connectors in the blower motor circuit, or a malfunctioning blower motor control module.

3. How can I diagnose the issue causing OBDII code B0193 in a 2017 GMC Sierra?

- Diagnose the issue by inspecting the blower motor and related wiring for any visible damage, testing the blower motor for proper operation, and using a diagnostic tool to check for specific circuit faults.

4. Is it safe to continue driving a 2017 GMC Sierra with OBDII code B0193 related to the front blower motor speed circuit?

- It is not recommended to continue driving the vehicle with this code, as the front blower motor is essential for proper ventilation and climate control in the cabin.

5. Can I repair OBDII code B0193 in a 2017 GMC Sierra myself, or should I seek professional help?

- While some basic checks and repairs can be done by DIY enthusiasts, it is advisable to seek professional help for a thorough diagnosis and proper repair of the front blower motor speed circuit.

6. How much does it typically cost to repair OBDII code B0193 in a 2017 GMC Sierra at a dealership or repair shop?

- The cost of repair can vary depending on the specific issue causing the code, but it may range from $100 to $500, including parts and labor.

7. Are there any preventive maintenance tips to help avoid OBDII code B0193 in a 2017 GMC Sierra?

- Regularly inspecting and maintaining the front blower motor system, including cleaning the filters and ensuring proper airflow, can help prevent issues leading to this OBDII code.

8. Can extreme weather conditions, such as excessive heat or cold, contribute to triggering OBDII code B0193 in a 2017 GMC Sierra?

- Yes, extreme weather conditions can potentially affect the performance of the blower motor and its circuitry, leading to issues that trigger this OBDII code.

9. Is OBDII code B0193 specific to 2017 GMC Sierra models, or can it occur in other vehicle makes and models?

- While this specific code may be unique to GMC Sierra models, similar issues with the front blower motor speed circuit can occur in other vehicles, triggering related OBDII codes.

10. Can resetting the vehicle's ECU or clearing the error codes resolve OBDII code B0193 temporarily in a 2017 GMC Sierra?

- Clearing the error codes may temporarily turn off the warning light, but if the underlying issue is not addressed, the code is likely to reappear once the problem persists.