B3794 Cadillac 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 Cadillac 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 Cadillac Description
What are the Possible Causes of the DTC B3794 Cadillac?
- 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 Cadillac?
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 Cadillac 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 Cadillac Code
1. What does OBDII code B3794 mean on a Cadillac?
B3794 indicates an issue with the cruise control function request circuit, which affects the communication between the cruise control switch and the vehicle's control module.
2. What are the common symptoms of the B3794 code?
Symptoms may include the cruise control system not engaging or functioning, the cruise control indicator not illuminating, or a check engine light.
3. What causes the B3794 code on a Cadillac?
This code is typically caused by a faulty cruise control switch, damaged wiring or connectors in the cruise control circuit, or a malfunctioning body control module (BCM).
4. Can a bad cruise control switch trigger the B3794 code?
Yes, a faulty or stuck cruise control switch is a common cause of the B3794 code.
5. How do I diagnose the B3794 code?
Start by inspecting the cruise control switch, wiring, and connectors for damage or corrosion. Use a scan tool to monitor cruise control inputs and confirm circuit functionality.
6. Can I still drive my Cadillac with the B3794 code?
Yes, the vehicle can still be driven, but the cruise control system will likely be inoperative until the issue is resolved.
7. How is the B3794 code fixed?
Repairs may include replacing the cruise control switch, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the BCM if necessary.
8. Is the B3794 code a serious issue?
While it doesn’t affect the overall drivability of the vehicle, it disables the cruise control system and should be addressed to restore functionality.
9. Can a low battery cause the B3794 code?
A low or weak battery can potentially cause electrical issues, but it is not a common cause of the B3794 code. Focus on the cruise control circuit components first.
10. What tools are needed to troubleshoot the B3794 code?
A diagnostic scan tool, a multimeter, and potentially a wiring diagram for the cruise control circuit are essential for proper troubleshooting.
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