AutoCodes – Chevrolet – B3794:08 2017 Chevrolet Silverado

B3794:08 2017 Chevrolet Silverado 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 2017 Chevrolet Silverado 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 281

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 2017 Chevrolet Silverado 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 2017 Chevrolet Silverado - Cruise Control Function Request Circuit - AutoCodes.com — B3794:08 2017 Chevrolet Silverado Code - Cruise Control Function Request Circuit

What does this mean?

What are the Possible Causes of the DTC B3794:08 2017 Chevrolet Silverado?

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 2017 Chevrolet Silverado?

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 2017 Chevrolet Silverado 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 2017 Chevrolet Silverado code?

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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 B3794:08 2017 Chevrolet Silverado Code

1. What does the OBDII code B3794:08 mean on a 2017 Chevrolet Silverado?

The code B3794:08 indicates an issue with the Cruise Control Function Request Circuit, specifically that the signal is stuck low.

2. What are common symptoms of the B3794:08 code?

Typical symptoms include the cruise control not engaging or functioning properly and possibly an illuminated check engine light.

3. What causes the B3794:08 code on a 2017 Chevrolet Silverado?

The code can be caused by a faulty cruise control switch, damaged wiring or connectors in the cruise control circuit, or issues with the body control module (BCM).

4. How can I diagnose the B3794:08 code?

Start by inspecting the cruise control switch and its wiring for damage or loose connections, and use a scan tool to verify signal inputs to the BCM.

5. Can a faulty cruise control switch trigger the B3794:08 code?

Yes, a malfunctioning cruise control switch can cause the circuit to send incorrect signals, leading to this code.

6. What tools are needed to troubleshoot the B3794:08 code?

Youâ€™ll need a multimeter to check wiring continuity and a scan tool capable of reading live data from the BCM.

7. Can the B3794:08 code affect other vehicle functions?

While it primarily impacts cruise control, issues with the BCM or wiring could indirectly affect other systems if shared circuits are involved.

8. Is it safe to drive with the B3794:08 code active?

Yes, the vehicle is safe to drive, but cruise control functionality will likely be impaired.

9. How is the B3794:08 code repaired?

Repairs may involve replacing the cruise control switch, repairing or replacing damaged wiring/connectors, or updating/replacing the BCM.

10. Will clearing the B3794:08 code fix the problem?

Clearing the code without addressing the underlying issue will only temporarily remove the code; the problem must be diagnosed and repaired to prevent recurrence.