B3794 2014 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 2014 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 2014 GMC Sierra Description
What are the Possible Causes of the DTC B3794 2014 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 2014 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 2014 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 2014 GMC Sierra Code
1. What does the OBDII code B3794 mean on a 2014 GMC Sierra?
The B3794 code indicates an issue with the Cruise Control Function Request Circuit, which can affect the communication or operation of the cruise control system.
2. What are common symptoms of the B3794 code in a 2014 GMC Sierra?
Symptoms may include the cruise control not engaging, inconsistent cruise control operation, or the cruise control light failing to illuminate.
3. What causes the B3794 code to appear?
Common causes include a faulty cruise control switch, damaged wiring or connections in the circuit, a malfunctioning clock spring, or a problem with the body control module (BCM).
4. Can I still drive my 2014 GMC Sierra with the B3794 code?
Yes, you can still drive the vehicle, but the cruise control system may not function properly, which could be inconvenient for highway driving.
5. How do I diagnose the B3794 code on my GMC Sierra?
Diagnosis involves checking the cruise control switch functionality, inspecting the wiring and connectors for damage, and using a scan tool to monitor the input signal from the cruise control circuit.
6. How can I fix the B3794 code on my 2014 GMC Sierra?
Repairs may include replacing a faulty cruise control switch, repairing damaged wiring, replacing the clock spring, or reprogramming or replacing the BCM if necessary.
7. Can a bad clock spring cause the B3794 code?
Yes, a damaged clock spring can disrupt the cruise control circuit, leading to the B3794 code.
8. How much does it cost to repair the B3794 code on a GMC Sierra?
Repair costs can vary widely, ranging from $100 to $500 or more, depending on whether the issue is a simple wiring repair or requires replacement of components like the switch or BCM.
9. Will clearing the B3794 code with a scan tool fix the problem?
Clearing the code may temporarily remove it, but the underlying issue must be repaired to prevent the code from returning.
10. Can a faulty body control module (BCM) trigger the B3794 code?
Yes, a malfunctioning BCM can sometimes cause the B3794 code, as it plays a role in the cruise control system's operation.
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