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B3794 2016 Chevrolet Silverado Code - Cruise Control Function Request Circuit

Quick Answer

The B3794 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado relates to the Cruise Control Function Request Circuit. Common causes include Faulty cruise control switch or buttons, Damaged wiring or connectors in the cruise control circuit, Malfunctioning cruise control module. 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 2016 Chevrolet Silverado indicates Cruise Control Function Request Circuit.
Common causes
Common causes include Faulty cruise control switch or buttons, Damaged wiring or connectors in the cruise control circuit, Malfunctioning cruise control module.
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 13, 2024
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Code B3794 2016 Chevrolet Silverado Description

The B3794 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado relates to the Cruise Control Function Request Circuit. This code indicates that there is a malfunction in the circuit responsible for receiving requests from the cruise control system to engage or disengage. The cruise control system allows the driver to set a desired speed for the vehicle to maintain automatically, providing convenience and reducing driver fatigue on long trips.

OBDII Code B3794 2016 Chevrolet Silverado - Cruise Control Function Request Circuit
B3794 2016 Chevrolet Silverado Code - Cruise Control Function Request Circuit

Common Causes of B3794 2016 Chevrolet Silverado

  1. Faulty cruise control switch or buttons.
  2. Damaged wiring or connectors in the cruise control circuit.
  3. Malfunctioning cruise control module.
  4. Issues with the vehicle speed sensor.
  5. Electronic control unit (ECU) failure.

Symptoms of B3794 2016 Chevrolet Silverado

  1. Inability to set or maintain a desired speed using the cruise control system.
  2. Check engine light illuminated on the dashboard.
  3. Erratic behavior of the cruise control system, such as engaging or disengaging unexpectedly.
  4. Loss of cruise control functionality altogether.

How to Fix B3794 2016 Chevrolet Silverado

  1. Begin by conducting a thorough inspection of the cruise control system components, including the switch, wiring, connectors, and control module.
  2. Use a multimeter to test the continuity of the wiring and connectors to identify any breaks or shorts.
  3. Check the cruise control switch for proper functionality and replace if necessary.
  4. Test the vehicle speed sensor to ensure it is sending accurate signals to the ECU.
  5. If all components check out, consider reprogramming or replacing the ECU to address any underlying issues.

Cost to Fix B3794 2016 Chevrolet Silverado

The cost of repairing the Cruise Control Function Request Circuit issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, you can expect to pay between $150 and $400 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can fluctuate, so it's recommended to obtain quotes from multiple sources to ensure a competitive price.

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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 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B3794 in a 2016 Chevrolet Silverado 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 the inability to set or resume a desired speed.

2. What are the potential causes of OBDII code B3794 in a 2016 Chevrolet Silverado?

Potential causes of the Cruise Control Function Request Circuit issue include a faulty cruise control switch, damaged wiring or connectors, a defective cruise control module, or a malfunctioning vehicle speed sensor.

3. How can I diagnose the OBDII code B3794 in my 2016 Chevrolet Silverado related to the Cruise Control Function Request Circuit?

Diagnosing the issue involves checking the cruise control switch for proper functionality, inspecting the wiring and connectors for any damage, testing the cruise control module, and verifying the vehicle speed sensor output.

4. Can I still drive my 2016 Chevrolet Silverado with the OBDII code B3794 related to the Cruise Control Function Request Circuit?

Yes, you can still drive the vehicle safely without using the cruise control function affected by this code. However, it is recommended to address the issue promptly to ensure the proper functioning of the system.

5. How can I repair OBDII code B3794 in my 2016 Chevrolet Silverado Cruise Control Function Request Circuit?

Repairing the issue may involve replacing a faulty cruise control switch, repairing or replacing damaged wiring or connectors, replacing the cruise control module if necessary, or addressing any issues with the vehicle speed sensor.

6. Can a DIY enthusiast fix the OBDII code B3794 in a 2016 Chevrolet Silverado related to the Cruise Control Function Request Circuit?

Depending on the level of expertise and access to tools, a DIY enthusiast may be able to address the Cruise Control Function Request Circuit issue by following a repair manual specific to the vehicle model or seeking assistance from online forums for guidance.

7. How much does it cost to repair OBDII code B3794 in a 2016 Chevrolet Silverado Cruise Control Function Request Circuit?

The cost of repairing the Cruise Control Function Request Circuit issue can vary depending on the specific cause of the problem, parts needed for replacement, labor costs, and whether the repair is done at a dealership or an independent mechanic.

8. Are there any recalls or technical service bulletins related to OBDII code B3794 in a 2016 Chevrolet Silverado Cruise Control Function Request Circuit?

It is recommended to check with a Chevrolet dealership or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any recalls or technical service bulletins related to the Cruise Control Function Request Circuit issue in the 2016 Silverado.

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