B3794 2015 GMC Sierra Code - Cruise Control Function Request Circuit
Quick Answer
The Cruise Control Switch is an input to the Body Control Module (BCM). Common causes include Faulty Cruise Control Switch, Cruise Control Switch harness is open or shorted, Cruise Control Switch circuit poor electrical connection. 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, Cruise Control Switch harness is open or shorted, Cruise Control Switch circuit poor electrical connection.
- 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.
Code B3794 2015 GMC Sierra Description
What are the Possible Causes of the DTC B3794 2015 GMC Sierra?
- Faulty Cruise Control Switch
- Cruise Control Switch harness is open or shorted
- Cruise Control Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B3794 2015 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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B3794 2015 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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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.
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