AutoCodes – GMC – B3794:61 2017 GMC Sierra

B3794:61 2017 GMC Sierra 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: B3794:61 2017 GMC Sierra 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 129

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 B3794:61 2017 GMC Sierra 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 a stuck switch for either Resume/Accel or Set/Coast button for 60 seconds.

OBDII Code B3794:61 2017 GMC Sierra - Cruise Control Function Request Circuit - AutoCodes.com — B3794:61 2017 GMC Sierra Code - Cruise Control Function Request Circuit

What does this mean?

What are the Possible Causes of the DTC B3794:61 2017 GMC Sierra?

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 B3794:61 2017 GMC Sierra?

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 B3794:61 2017 GMC Sierra 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 B3794:61 2017 GMC Sierra 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 B3794:61 2017 GMC Sierra Code

1. What does the OBDII code B3794:61 mean on a 2017 GMC Sierra?

The code B3794:61 indicates an issue with the Cruise Control Function Request Circuit, specifically a signal error or malfunction.

2. What are the common symptoms of the B3794:61 code in a 2017 GMC Sierra?

Symptoms may include the cruise control not engaging, intermittent cruise control operation, or the cruise control system being completely inoperative.

3. What causes the B3794:61 code to trigger in a GMC Sierra?

Common causes include a faulty cruise control switch, wiring issues such as damaged or corroded connections, or a malfunction in the body control module (BCM).

4. How do you diagnose the B3794:61 code in a 2017 GMC Sierra?

Diagnosis involves checking the cruise control switch operation, inspecting the wiring and connectors for damage, and using a scan tool to monitor cruise control-related data.

5. Can a blown fuse cause the B3794:61 code on a 2017 GMC Sierra?

Yes, a blown fuse for the cruise control circuit can interrupt the signal and trigger this code.

6. Is the B3794:61 code related to any other systems in the GMC Sierra?

Yes, it can be related to the body control module (BCM) and other systems that process cruise control inputs.

7. Can I still drive my 2017 GMC Sierra with the B3794:61 code?

Yes, the vehicle can still be driven, but cruise control functionality will likely be impaired or unavailable.

8. How do you fix the B3794:61 code on a GMC Sierra?

Repairs may include replacing the cruise control switch, repairing damaged wiring or connectors, or reprogramming or replacing the body control module (BCM) if necessary.

9. How much does it cost to repair the B3794:61 code on a 2017 GMC Sierra?

Repair costs vary depending on the exact issue, but replacing a cruise control switch typically costs between $100 and $300, while BCM repairs can cost $500 or more.

10. Can the B3794:61 code clear itself on a GMC Sierra?

The code might clear temporarily if the issue is intermittent, but it will likely return until the underlying problem is resolved.