B3794 2015 GMC Sierra Code - Cruise Control Function Request Circuit
Quick Answer
The B3794 diagnostic trouble code (DTC) for the 2015 GMC Sierra relates to the Cruise Control Function Request Circuit. Common causes include Faulty cruise control switch, Damaged wiring or connectors in the cruise control circuit, Defective cruise control module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B3794 2015 GMC Sierra indicates Cruise Control Function Request Circuit.
- Common causes
- Common causes include Faulty cruise control switch, Damaged wiring or connectors in the cruise control circuit, Defective cruise control module.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B3794 2015 GMC Sierra Description
The B3794 diagnostic trouble code (DTC) for the 2015 GMC Sierra relates to the Cruise Control Function Request Circuit. This code indicates that there is a malfunction in the circuit responsible for sending signals to the cruise control system, affecting its ability to function properly. The cruise control system allows the driver to set a desired speed for the vehicle to maintain automatically, providing convenience and comfort during long drives.
Common Causes of B3794 2015 GMC Sierra
- Faulty cruise control switch
- Damaged wiring or connectors in the cruise control circuit
- Defective cruise control module
- ECM or BCM communication issues
- Electrical system malfunctions
Symptoms of B3794 2015 GMC Sierra
- Inoperative cruise control system
- Cruise control system engaging intermittently
- Check engine light illuminated
- Speed fluctuations while using cruise control
How to Fix B3794 2015 GMC Sierra
- Begin by conducting a thorough inspection of the cruise control circuit, including switches, wiring, connectors, and modules.
- Use a diagnostic scan tool to retrieve the specific DTC (B3794) and further pinpoint the source of the issue.
- Test the cruise control components individually to identify any faulty parts that need replacement.
- Repair or replace any damaged or malfunctioning cruise control components, such as switches, wiring, connectors, or modules.
- Clear the DTC from the vehicle's memory using the diagnostic scan tool and test the cruise control system to ensure proper functionality.
Cost to Fix B3794 2015 GMC Sierra
The typical repair costs for addressing the B3794 code on a 2015 GMC Sierra can range from $150 to $500, depending on the specific cause of the issue and the cost of replacement parts. This estimate includes parts and labor, but actual costs may vary based on the location, labor rates, and the extent of the repair needed. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate based on the individual circumstances.
Need more information about the B3794 2015 GMC Sierra code?
Need more information on how to fix the B3794 2015 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B3794 2015 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B3794 2015 GMC Sierra Code
1. What are the common symptoms of OBDII code B3794 in a 2015 GMC Sierra related to the Cruise Control Function Request Circuit?
- The common symptoms include the cruise control system not engaging or maintaining speed, the cruise control light flashing, and potential issues with other vehicle functions.
2. What are the possible causes of OBDII code B3794 in a 2015 GMC Sierra?
- Possible causes include a faulty cruise control switch, damaged wiring or connectors in the cruise control system, a malfunctioning cruise control module, or issues with the vehicle's ECM.
3. How can I diagnose the Cruise Control Function Request Circuit issue causing OBDII code B3794 in my 2015 GMC Sierra?
- Diagnosis involves inspecting the cruise control switch for proper operation, checking the wiring and connectors for damage, testing the cruise control module, and scanning the vehicle's ECM for related error codes.
4. Is it safe to continue driving my 2015 GMC Sierra with OBDII code B3794 related to the Cruise Control Function Request Circuit issue?
- It is generally safe to drive the vehicle without using the cruise control function. However, it is recommended to have the issue diagnosed and repaired to ensure proper functioning of the cruise control system and to prevent potential future problems.
5. Can a DIY enthusiast repair OBDII code B3794 in a 2015 GMC Sierra related to the Cruise Control Function Request Circuit?
- Depending on the specific cause of the code, some DIY repairs may be possible, such as checking and replacing a faulty cruise control switch or repairing damaged wiring. However, more complex issues may require professional diagnosis and repair.
6. How much does it typically cost to repair OBDII code B3794 in a 2015 GMC Sierra related to the Cruise Control Function Request Circuit?
- The cost of repair can vary depending on the cause of the issue. Simple repairs like replacing a cruise control switch may cost around $100-$200, while more complex repairs involving the cruise control module or ECM can range from $300 to $800 or more.
7. Are there any preventive maintenance tips to avoid encountering OBDII code B3794 in a 2015 GMC Sierra related to the Cruise Control Function Request Circuit?
- Regularly inspecting and maintaining the cruise control system, checking for any signs of wear or damage in the wiring and connectors, and addressing any cruise control issues promptly can help prevent the occurrence of this code.
8. Can OBDII code B3794 in a 2015 GMC Sierra related to the Cruise Control Function Request Circuit cause other problems in the vehicle?
- While this code specifically relates to the cruise control system, unresolved issues with the cruise control function can potentially affect other vehicle systems or components. It is essential to address the problem to maintain overall vehicle performance.
9. How long does it typically take to repair OBDII code B3794 in a 2015 GMC Sierra related to the Cruise Control Function Request Circuit?
- The repair time can vary based on the complexity of the issue and the availability of parts. Simple repairs may be completed within a few hours, while more involved repairs or diagnostics could take a day or more.
10. Can resetting the vehicle's ECM clear OBDII code B3794 related to the Cruise Control Function Request Circuit in a 2015 GMC Sierra?
- While resetting the ECM may temporarily clear the code, it is not a permanent solution if the underlying issue causing the code is not addressed. It is recommended to diagnose the problem and perform the necessary repairs to prevent the code from reoccurring.
Discuss the causes and fixes for B3794 2015 GMC Sierra OBDII Code
Code B3794 2015 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.