AutoCodes – GMC – B3717 GMC

B3717 GMC Code - Front Wiper Relay Drive Circuit Low

Quick Answer

The Body Control Module (BCM) monitors the control circuit of the wiper relay. Common causes include Faulty Front Wiper Relay, Front Wiper Relay harness is open or shorted, Front 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: B3717 GMC indicates Front Wiper Relay Drive Circuit Low.
Common causes: Common causes include Faulty Front Wiper Relay, Front Wiper Relay harness is open or shorted, Front 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 671

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 15, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3717 GMC Description

The Body Control Module (BCM) monitors the control circuit of the wiper relay. The voltage level should be low while the wiper relay is de-energized and near system voltage when the relay is energized. After the BCM receives a low, intermittent, or mist signal from the wiper/washer switch, it responds by applying battery voltage through the wiper relay control circuit to the coil side of the relay, energizing the wiper relay. The Diagnostic Trouble Code (DTC) sets if the BCM detects a short to ground in the wiper relay control circuit.

OBDII Code B3717 GMC - Front Wiper Relay Drive Circuit Low - AutoCodes.com — B3717 GMC Code - Front Wiper Relay Drive Circuit Low

What does this mean?

What are the Possible Causes of the DTC B3717 GMC?

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

How to Fix the DTC B3717 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 B3717 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 B3717 GMC 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 B3717 GMC Code

1. What are the common symptoms of OBDII code B3717 GMC (Front Wiper Relay Drive Circuit Low)?

Symptoms may include slow or erratic wiper operation, wipers not moving at all, or the wipers getting stuck in one position.

2. What are some possible causes of OBDII code B3717 GMC?

Potential causes include a faulty front wiper relay, damaged wiring or connectors in the wiper circuit, or a malfunctioning wiper motor.

3. How can I diagnose the Front Wiper Relay Drive Circuit Low issue?

Diagnosis typically involves checking the front wiper relay, inspecting the wiring and connectors for damage, and testing the wiper motor for proper function.

4. What should I do if I encounter the B3717 GMC code?

If you encounter this code, it's recommended to address the issue promptly to ensure the proper functioning of your front wipers and maintain visibility while driving.

5. Can I still drive my vehicle with the Front Wiper Relay Drive Circuit Low problem?

It is not advisable to drive in inclement weather conditions with faulty wipers. It's best to address the issue and repair it before driving in adverse weather.

6. Are there any DIY repair tips for OBDII code B3717 GMC?

DIY repair tips may include checking and cleaning the wiper relay contacts, inspecting the wiring for any visible damage, and ensuring all connections are secure.

7. How much does it typically cost to repair the Front Wiper Relay Drive Circuit Low issue?

Repair costs can vary depending on the exact cause of the problem and whether you choose to do the repairs yourself or have them done by a professional mechanic.

8. Can I reset the B3717 GMC code myself?

You can try resetting the code using an OBDII scanner, but it's important to address the underlying issue causing the code to prevent it from recurring.

9. Is the B3717 GMC code a serious issue?

While it may not affect the overall drivability of the vehicle, having faulty front wipers can compromise visibility and safety, especially in adverse weather conditions.

10. How can I prevent the Front Wiper Relay Drive Circuit Low problem in the future?

Regularly inspecting and maintaining the wiper system, including the relay, wiring, and motor, can help prevent issues like the B3717 GMC code from occurring.