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B3794:08 Chevrolet Code - Cruise Control Function Request Circuit

Quick Answer

The B3794:08 Chevrolet code refers to a Cruise Control Function Request Circuit issue in the vehicle. Common causes include Faulty cruise control switch: A malfunctioning cruise control switch can prevent the system from receiving input commands, triggering the B3794:08 code, Damaged wiring or connectors: Corroded or damaged wiring connections in the cruise control circuit can disrupt the signal transmission, causing the code to appear, Failed cruise control module: A defective cruise control module can lead to communication issues with the ECM, resulting in the code being triggered. 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
B3794:08 Chevrolet indicates Cruise Control Function Request Circuit.
Common causes
Common causes include Faulty cruise control switch: A malfunctioning cruise control switch can prevent the system from receiving input commands, triggering the B3794:08 code, Damaged wiring or connectors: Corroded or damaged wiring connections in the cruise control circuit can disrupt the signal transmission, causing the code to appear, Failed cruise control module: A defective cruise control module can lead to communication issues with the ECM, resulting in the code being triggered.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code B3794:08 Chevrolet Description

The B3794:08 Chevrolet code refers to a Cruise Control Function Request Circuit issue in the vehicle. Cruise control is a system that allows drivers to set a specific speed for their vehicle to maintain without having to constantly press on the accelerator. When this code appears, it indicates a problem with the circuit responsible for receiving and processing the cruise control function requests. This can lead to the cruise control system not working properly or not engaging at all.

OBDII Code B3794:08 Chevrolet - Cruise Control Function Request Circuit
B3794:08 Chevrolet Code - Cruise Control Function Request Circuit

Common Causes of B3794:08 Chevrolet

  1. Faulty cruise control switch: A malfunctioning cruise control switch can prevent the system from receiving input commands, triggering the B3794:08 code.
  2. Damaged wiring or connectors: Corroded or damaged wiring connections in the cruise control circuit can disrupt the signal transmission, causing the code to appear.
  3. Failed cruise control module: A defective cruise control module can lead to communication issues with the ECM, resulting in the code being triggered.
  4. ECM malfunction: A malfunctioning engine control module (ECM) can prevent the cruise control system from receiving or processing requests correctly, leading to the code being stored.

Symptoms of B3794:08 Chevrolet

  1. Inability to engage cruise control: One of the primary symptoms associated with the B3794:08 code is the inability to engage the cruise control system, even when all the settings are correctly inputted.
  2. Erratic cruise control behavior: The cruise control system may engage and disengage unexpectedly, leading to inconsistent speed maintenance.
  3. Dashboard warning light: The vehicle's dashboard may display a cruise control warning light or a check engine light, indicating a problem with the system.
  4. Speed fluctuations: The vehicle may experience sudden speed fluctuations or difficulty maintaining a constant speed when the cruise control is activated.

How to Fix B3794:08 Chevrolet

  1. Diagnostic scan: Begin by using an OBD-II scanner to retrieve the specific fault code (B3794:08) and identify the exact cause of the issue.
  2. Check cruise control components: Inspect the cruise control switch, wiring, connectors, and module for any visible signs of damage or wear.
  3. Repair or replace faulty components: Replace any damaged cruise control components such as switches, wiring, or modules to restore proper functionality.
  4. Clear fault code: Once the repair is completed, clear the fault code from the vehicle's computer memory using the OBD-II scanner.
  5. Test drive: Test the cruise control system to ensure that it engages and maintains the set speed correctly without triggering the code again.

Cost to Fix B3794:08 Chevrolet

The cost of repairing a B3794:08 Chevrolet code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the repair costs for a cruise control function request circuit problem can range from $100 to $500, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It's advisable to consult with a qualified mechanic or auto repair shop to get a more accurate estimate based on your vehicle's specific needs.

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Information for Specific Chevrolet Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B3794:08 Chevrolet Code

1. What does OBDII code B3794:08 Chevrolet indicate?

The code B3794:08 Chevrolet refers to a Cruise Control Function Request Circuit problem in the vehicle.

2. What are common symptoms of the Cruise Control Function Request Circuit issue?

Common symptoms include the cruise control system not engaging or working intermittently, vehicle speed not being maintained smoothly, and the cruise control light flashing or staying on.

3. What are the possible causes of OBDII code B3794:08 Chevrolet?

Potential causes include a faulty cruise control switch, damaged wiring or connectors in the cruise control circuit, a malfunctioning cruise control module, or a problem with the vehicle's electronic control unit (ECU).

4. How can I diagnose the Cruise Control Function Request Circuit problem?

Diagnosing the issue involves checking the cruise control switch for proper operation, inspecting the wiring and connectors for any signs of damage or corrosion, testing the cruise control module, and scanning the ECU for related fault codes.

5. What steps can I take to repair the Cruise Control Function Request Circuit issue?

Repairing the problem may involve replacing a faulty cruise control switch, repairing or replacing damaged wiring or connectors, addressing any issues with the cruise control module, or reprogramming the ECU to resolve the fault code.

6. Is it safe to continue driving with OBDII code B3794:08 Chevrolet present?

While the vehicle should still be safe to drive with this code, it is recommended to address the cruise control issue promptly to ensure proper functionality and avoid potential inconvenience on the road.

7. Can OBDII code B3794:08 Chevrolet be cleared/reset without fixing the underlying problem?

Clearing the fault code without addressing the root cause may temporarily remove the warning light, but the issue will likely persist, leading to potential future problems with the cruise control system.

8. How can I prevent the Cruise Control Function Request Circuit problem from recurring?

To prevent the issue from happening again, it's essential to perform regular maintenance checks on the cruise control system, address any related warning signs promptly, and follow proper driving habits to avoid strain on the system.

9. Are there any specific vehicle models or years commonly affected by OBDII code B3794:08 Chevrolet?

While the code can occur in various Chevrolet models, it's essential to consult the vehicle's specific manual or contact a certified mechanic to determine the exact compatibility and prevalence of this issue in a particular make and model.

10. Should I attempt to fix OBDII code B3794:08 Chevrolet myself, or seek professional help?

If you have experience with automotive repairs and diagnostics, you may attempt to address the issue yourself. However, for those unfamiliar with the intricacies of the cruise control system, seeking professional assistance from a qualified technician is recommended to ensure proper diagnosis and repair.

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