AutoCodes – GMC – B3715 GMC

B3715 GMC 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 GMC 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 814

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

What does this mean?

What are the Possible Causes of the DTC B3715 GMC?

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 GMC?

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 GMC 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 GMC code?

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Need Help with the Code?

Get the B3715 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

B3715 2014 GMC Sierra — Windshield Wiper Relay Drive Circuit
B3715 2015 GMC Sierra — Windshield Wiper Relay Drive Circuit
B3715 2016 GMC Sierra — Windshield Wiper Relay Drive Circuit
B3715 2017 GMC Sierra — Windshield Wiper Relay Drive Circuit
B3715 2018 GMC Sierra — Windshield Wiper Relay Drive 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 B3715 GMC Code

1. What are the common symptoms of OBDII code B3715 GMC (Windshield Wiper Relay Drive Circuit)?

The common symptoms include malfunctioning windshield wipers, wipers not turning on or off properly, and intermittent wiper operation.

2. What are the possible causes of OBDII code B3715 GMC?

Possible causes include a faulty windshield wiper relay, damaged wiring or connectors in the wiper circuit, or a problem with the wiper motor.

3. How can I diagnose the OBDII code B3715 GMC issue?

Diagnose the issue by conducting a visual inspection of the wiper relay and related components, checking the wiring for any damage, and using a multimeter to test the continuity and voltage in the circuit.

4. Can I repair OBDII code B3715 GMC myself?

If you have experience working with automotive electrical systems, you may be able to repair the issue yourself by replacing the faulty windshield wiper relay, repairing damaged wiring, or addressing any other identified problems.

5. Is it safe to continue driving with OBDII code B3715 GMC active?

It is not recommended to drive with this code active, as malfunctioning windshield wipers can affect visibility and compromise your safety on the road, especially during adverse weather conditions.

6. How much does it typically cost to repair OBDII code B3715 GMC?

The cost of repair can vary depending on the specific issue causing the code, but it may range from $50 to $200 for parts and labor if you take your vehicle to a mechanic.

7. Are there any preventive measures to avoid OBDII code B3715 GMC in the future?

To prevent this issue, regularly inspect your windshield wiper system for any signs of wear or damage, replace wiper blades as needed, and address any wiper-related problems promptly.

8. Can OBDII code B3715 GMC be triggered by a blown fuse?

Yes, a blown fuse in the windshield wiper circuit can potentially trigger this OBDII code, so it's important to check and replace any blown fuses as part of the diagnostic process.

9. Will resetting the OBDII system clear the B3715 GMC code?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear once the problem resurfaces.

10. How urgent is it to address OBDII code B3715 GMC?

It is recommended to address this issue as soon as possible to ensure your windshield wipers function correctly and maintain safe driving conditions, especially in inclement weather.