AutoCodes – GMC – B3715 2016 GMC Sierra

B3715 2016 GMC Sierra Code - Windshield Wiper Relay Drive Circuit

Quick Answer

The windshield wiper motor is controlled by the Body Control Module (BCM) through the windshield wiper replay and the windshield wiper speed control relay. Common causes include Faulty Windshield Wiper Relay, Windshield Wiper Relay harness is open or shorted, Windshield Wiper Relay 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: B3715 2016 GMC Sierra indicates Windshield Wiper Relay Drive Circuit.
Common causes: Common causes include Faulty Windshield Wiper Relay, Windshield Wiper Relay harness is open or shorted, Windshield Wiper Relay 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 230

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 Jun 14, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3715 2016 GMC Sierra Description

The windshield wiper motor is controlled by the Body Control Module (BCM) through the windshield wiper replay and the windshield wiper speed control relay. When low speed windshield wiper operation is requested, the BCM will apply voltage to the windshield wiper relay control circuit. This will cause the contacts in the windshield wiper relay to close and apply B+ to the windshield wiper motor through the windshield wiper low speed control circuit, enabling low speed wiper operation. When high speed windshield wiper operation is requested, the body control module continues to apply voltage to the windshield wiper relay control circuit and also applies ground to the windshield wiper speed control relay control circuit. This will cause the contacts in the windshield wiper speed control relay to close and apply B+ to the windshield wiper motor through the windshield wiper high speed control circuit, enabling high speed wiper operation. When the windshield wiper request is no longer present, the contacts in the windshield wiper relay and windshield wiper speed control relay will open, removing B+ from the wiper motor control circuits. The windshield wiper motor will continue to operate using a discrete B+ circuit provided by the BCM until the wipers are in the park position.

OBDII Code B3715 2016 GMC Sierra - Windshield Wiper Relay Drive Circuit - AutoCodes.com — B3715 2016 GMC Sierra Code - Windshield Wiper Relay Drive Circuit

What does this mean?

What are the Possible Causes of the DTC B3715 2016 GMC Sierra?

Faulty Windshield Wiper Relay
Windshield Wiper Relay harness is open or shorted
Windshield Wiper Relay circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B3715 2016 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 B3715 2016 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 B3715 2016 GMC Sierra code?

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Need Help with the 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 B3715 2016 GMC Sierra Code

1. What does the OBDII code B3715 mean on a 2016 GMC Sierra?

B3715 indicates a problem with the windshield wiper relay drive circuit, which controls the electrical operation of the wiper motor.

2. What are common symptoms of the B3715 code?

Symptoms include windshield wipers not functioning, wipers stuck in one position, or intermittent wiper operation failure.

3. What causes the B3715 code to appear?

Common causes include a faulty windshield wiper relay, damaged wiring or connectors in the wiper circuit, or a malfunctioning body control module (BCM).

4. Can I still drive my 2016 GMC Sierra with the B3715 code?

Yes, but driving without functioning wipers in poor weather conditions can be dangerous. It's best to address the issue promptly.

5. How do I diagnose the B3715 code?

Start by inspecting the wiper relay, checking for damaged wiring or loose connections, and testing the relay with a multimeter. If no issues are found, further diagnosis of the BCM may be required.

6. How do I fix the B3715 code on my 2016 GMC Sierra?

Repairs may involve replacing a faulty wiper relay, repairing damaged wiring or connectors, or reprogramming or replacing the BCM if necessary.

7. What tools are needed to troubleshoot the B3715 code?

Youâ€™ll need a diagnostic scanner, a multimeter, and basic tools to inspect wiring and components in the wiper circuit.

8. Can a weak battery cause the B3715 code?

While uncommon, a weak or failing battery can cause electrical issues, including problems with the wiper circuit. Ensure your battery is in good condition before further diagnosis.

9. How much does it cost to repair the B3715 code?

Repair costs vary depending on the issue but can range from $50 for a new relay to $500 or more if the BCM needs replacement or reprogramming.

10. Does the B3715 code require professional repair?

If you have experience with automotive electrical systems, you may be able to fix it yourself. However, BCM-related issues often require professional repair or reprogramming.