AutoCodes – GMC – B0198 GMC

B0198 GMC Code - Front Blower Motor Power Circuit Malfunction

Quick Answer

The Heating, Ventilation, and Air Conditioning (HVAC) Control Module monitors the Front Blower Motor. 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: B0198 GMC indicates Front Blower Motor Power Circuit Malfunction.
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 1,374

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 Mar 10, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B0198 GMC Description

The Heating, Ventilation, and Air Conditioning (HVAC) Control Module monitors the Front Blower Motor. The HVAC sets the OBDII code when the Front Blower Motor is not to factory specifications.

OBDII Code B0198 GMC - Front Blower Motor Power Circuit Malfunction - AutoCodes.com — B0198 GMC Code - Front Blower Motor Power Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B0198 GMC?

Faulty Front Blower Motor
Front Blower Motor harness is open or shorted
Front Blower Motor circuit poor electrical connection

How to Fix the DTC B0198 GMC?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0198 GMC 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.

Need more information about the B0198 GMC code?

Need more information on how to fix the B0198 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0198 GMC code diagnosed by a professional: Find a repair shop in your area

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 B0198 GMC Code

1. What are the common symptoms of OBDII code B0198 GMC (Front Blower Motor Power Circuit Malfunction)?

- Common symptoms include the front blower motor not working at all or only working intermittently, no air coming from the vents despite the fan being on, and the HVAC controls not responding properly.

2. What are the possible causes of OBDII code B0198 GMC?

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

3. How can I diagnose the Front Blower Motor Power Circuit Malfunction?

- Diagnosing this code typically involves checking the condition of the blower motor, testing the blower motor resistor, inspecting the wiring and connectors for any damage, and using a scan tool to retrieve specific diagnostic trouble codes.

4. What are some repair tips for addressing OBDII code B0198 GMC?

- Repair tips may include checking and replacing the blower motor if necessary, inspecting and repairing any damaged wiring or connectors, testing and replacing the blower motor resistor, and resetting the HVAC control module.

5. Can I continue driving my vehicle with OBDII code B0198 GMC?

- It is not recommended to continue driving your vehicle with this code unresolved, as it can lead to a lack of climate control in the cabin, discomfort for passengers, and potential safety concerns if the defroster is affected.

6. How much does it typically cost to repair OBDII code B0198 GMC?

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

7. Will resetting the trouble codes make OBDII code B0198 GMC go away?

- Resetting the trouble codes may temporarily clear the code, but if the underlying issue causing the Front Blower Motor Power Circuit Malfunction is not addressed, the code is likely to return.

8. Can a DIY enthusiast repair OBDII code B0198 GMC at home?

- Depending on your experience and access to tools, you may be able to diagnose and repair this code at home by following step-by-step guides, but it's recommended to consult a professional if you're unsure.

9. Is OBDII code B0198 GMC a serious problem that requires immediate attention?

- While it may not affect the drivability of the vehicle, OBDII code B0198 GMC should be addressed in a timely manner to ensure proper climate control and prevent further damage to related components.

10. How long does it take to repair OBDII code B0198 GMC?

- The repair time can vary based on the specific cause of the issue, but a professional mechanic may take anywhere from 1 to 3 hours to diagnose and repair the Front Blower Motor Power Circuit Malfunction.