AutoCodes – Chevrolet – B3794:08 Chevrolet

B3794:08 Chevrolet 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: B3794:08 Chevrolet 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.

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Code Popularity 584

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3794:08 Chevrolet Description

The Cruise Control Switch is an input to the Body Control Module (BCM). The BCM monitors the cruise control on/off, set/coast, resume/accelerate and cancel switches via the cruise control switch signal circuit in order to detect when the driver has requested to perform a cruise control function. The BCM detects a specific voltage signal on the cruise control switch signal circuit when a switch is applied. The Engine Control Module (ECM) receives the requested cruise control switch function from the BCM via a serial data message. The Diagnostic Trouble Code (DTC) will be set when the BCM detects an invalid voltage signal on the cruise control switch signal circuit for 1 second.

OBDII Code B3794:08 Chevrolet - Cruise Control Function Request Circuit - AutoCodes.com — B3794:08 Chevrolet Code - Cruise Control Function Request Circuit

What does this mean?

What are the Possible Causes of the DTC B3794:08 Chevrolet?

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 B3794:08 Chevrolet?

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 B3794:08 Chevrolet 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.

Need more information about the B3794:08 Chevrolet code?

Need more information on how to fix the B3794:08 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B3794:08 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

B3794 2014 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794:08 2014 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794:61 2014 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794:08 2015 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794:61 2015 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794 2015 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794 2016 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794:08 2016 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794:61 2016 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794 2017 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794:08 2017 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794:61 2017 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794 2018 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794:08 2018 Chevrolet Silverado — Cruise Control Function Request Circuit
B3794:61 2018 Chevrolet Silverado — Cruise Control Function Request Circuit

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.