AutoCodes – GMC – B0196 GMC

B0196 GMC Code - Front Blower Motor Speed Circuit High

Quick Answer

The Blower Motor Control Module is an interface between the Heating, Ventilation, and Air Conditioning (HVAC) Control Module and the 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: B0196 GMC indicates Front Blower Motor Speed Circuit High.
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 890

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 B0196 GMC Description

The 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.

OBDII Code B0196 GMC - Front Blower Motor Speed Circuit High - AutoCodes.com — B0196 GMC Code - Front Blower Motor Speed Circuit High

What does this mean?

What are the Possible Causes of the DTC B0196 GMC?

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

How to Fix the DTC B0196 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 B0196 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.

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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 B0196 GMC Code

1. What does the OBDII code B0196 mean on a GMC vehicle?

The B0196 code indicates an issue with the front blower motor speed circuit, specifically that the circuit is reading a high voltage condition.

2. What are the common symptoms of the B0196 code?

Common symptoms include the front blower motor not functioning properly, being stuck at one speed, or not operating at all.

3. What causes the B0196 code to appear?

This code is typically caused by a faulty blower motor resistor, a damaged blower motor, wiring issues such as frayed or shorted wires, or a malfunctioning HVAC control module.

4. Can I still drive my GMC with the B0196 code active?

Yes, you can drive the vehicle, but the HVAC system may not function properly, which can be inconvenient, especially in extreme weather conditions.

5. How do I diagnose the B0196 code?

Start by inspecting the blower motor resistor, wiring, and connectors for damage or corrosion. Use a multimeter to check for appropriate voltage levels in the circuit.

6. What repairs are typically needed to fix the B0196 code?

Repairs may include replacing the blower motor resistor, repairing or replacing damaged wiring, or replacing the HVAC control module if itâ€™s determined to be faulty.

7. How much does it cost to fix the B0196 code?

Repair costs vary depending on the issue. A blower motor resistor replacement typically costs between $50 and $150 for parts and labor, while more extensive electrical repairs or control module replacement may cost more.

8. Can a dead fuse cause the B0196 code?

A blown fuse could contribute to the issue if it interrupts power to the blower motor circuit, so checking the fuse is a good step in the diagnostic process.

9. Will clearing the code fix the problem permanently?

Clearing the code will not fix the underlying issue. The code will likely return if the root cause, such as a faulty resistor or wiring problem, is not addressed.

10. How can I prevent the B0196 code from occurring again?

Regularly inspect and maintain the HVAC system, ensuring wires and connectors are in good condition and replacing components like the blower motor resistor at the first sign of wear.