B3794 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 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 Description
What are the Possible Causes of the DTC B3794?
- 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?
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 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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Information for Specific Makes
- B3794 Buick — Cruise Control Function Request Circuit
- B3794 Cadillac — Cruise Control Function Request Circuit
- B3794:08 Chevrolet — Cruise Control Function Request Circuit
- B3794:61 Chevrolet — Cruise Control Function Request Circuit
- B3794 Chevrolet — Cruise Control Function Request Circuit
- B3794 GMC — Cruise Control Function Request Circuit
Frequently Asked Questions about B3794 Code
1. What are the common symptoms of OBDII code B3794 (Cruise Control Function Request Circuit)?
The common symptoms include non-functioning cruise control, illuminated "Cruise Control" warning light on the dashboard, and potential speed control issues.
2. What are the possible causes of OBDII code B3794?
The possible causes of this code can be a faulty cruise control switch, damaged wiring or connectors in the cruise control system, or a defective cruise control module.
3. How can I diagnose the issue related to OBDII code B3794?
To diagnose the problem, you can use a diagnostic scan tool to read the code and check for any related codes. Additionally, inspect the cruise control switch, wiring, and connectors for any visible damage.
4. Can a blown fuse cause OBDII code B3794 to occur?
Yes, a blown fuse in the cruise control system can lead to the activation of code B3794. Check the cruise control system's fuse box and replace any blown fuses as necessary.
5. How can I repair OBDII code B3794?
Repairing this code typically involves fixing or replacing the faulty cruise control switch, repairing damaged wiring or connectors, or replacing the cruise control module if needed.
6. Is it safe to continue driving with OBDII code B3794 active?
While the vehicle is generally safe to drive with this code, it is recommended to address the issue promptly to restore the proper functioning of the cruise control system.
7. Can resetting the vehicle's computer clear OBDII code B3794?
Resetting the vehicle's computer may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to reappear after some time.
8. Do I need a professional mechanic to fix OBDII code B3794?
While some DIY enthusiasts may be able to address this code themselves, it is recommended to consult a professional mechanic for a proper diagnosis and repair, especially if you are not experienced with automotive electrical systems.
9. Will OBDII code B3794 affect the overall drivability of the vehicle?
In most cases, this code will not affect the overall drivability of the vehicle, but the cruise control function will be disabled until the issue is resolved.
10. Can extreme weather conditions trigger OBDII code B3794?
Extreme weather conditions can potentially impact the cruise control system and trigger code B3794. Inspect the system for any weather-related damage or issues during such conditions.
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