B3715 2018 GMC Sierra Code - Windshield Wiper Relay Drive Circuit
Quick Answer
The B3715 diagnostic trouble code (DTC) for the 2018 GMC Sierra specifically relates to the windshield wiper relay drive circuit. Common causes include Faulty windshield wiper relay, Wiring issues such as shorts or open circuits, Corrosion or loose connections in the circuit. 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 2018 GMC Sierra indicates Windshield Wiper Relay Drive Circuit.
- Common causes
- Common causes include Faulty windshield wiper relay, Wiring issues such as shorts or open circuits, Corrosion or loose connections in the circuit.
- 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 B3715 2018 GMC Sierra Description
The B3715 diagnostic trouble code (DTC) for the 2018 GMC Sierra specifically relates to the windshield wiper relay drive circuit. This code indicates that there is a malfunction in the circuit responsible for controlling the windshield wiper relay. The windshield wiper relay is a crucial component that controls the operation of the windshield wipers, allowing them to move back and forth across the windshield to clear rain, snow, or debris for better visibility while driving.
Common Causes of B3715 2018 GMC Sierra
- Faulty windshield wiper relay.
- Wiring issues such as shorts or open circuits.
- Corrosion or loose connections in the circuit.
- Electrical component failure.
- Water intrusion or damage to the relay circuit.
Symptoms of B3715 2018 GMC Sierra
- Windshield wipers not moving or operating erratically.
- Wipers getting stuck in one position.
- Wipers not responding to control inputs.
- Wipers moving at incorrect speeds.
- Wipers not turning off when the switch is in the off position.
How to Fix B3715 2018 GMC Sierra
- Begin by diagnosing the specific cause of the issue by inspecting the windshield wiper relay and the associated wiring.
- Test the windshield wiper relay using a multimeter to check for proper functionality.
- Inspect the wiring for any signs of damage, corrosion, or loose connections and repair or replace as necessary.
- Replace the windshield wiper relay if it is found to be faulty.
- Clear the DTC from the vehicle's computer system and test the windshield wipers to ensure they are functioning correctly.
Cost to Fix B3715 2018 GMC Sierra
The cost of repairing the windshield wiper relay drive circuit can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the cost of replacing a windshield wiper relay can range from $50 to $150, while the cost of labor can range from $80 to $150 per hour. Additional costs may be incurred if wiring repairs or other components need to be replaced. It is recommended to consult with a professional mechanic or auto repair shop for a more accurate cost estimate based on the specific circumstances of the vehicle.
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Frequently Asked Questions about B3715 2018 GMC Sierra Code
1. What does OBDII code B3715 mean on a 2018 GMC Sierra?
Code B3715 refers to a fault in the windshield wiper relay drive circuit, indicating an issue with the electrical circuit controlling the wiper relay.
2. What are the common symptoms of code B3715 in a 2018 GMC Sierra?
Symptoms include the windshield wipers not functioning, wipers stuck in one position, or wipers operating intermittently or erratically.
3. What causes code B3715 in a 2018 GMC Sierra?
Common causes include a faulty wiper relay, damaged wiring or connectors in the wiper circuit, or a malfunctioning body control module (BCM).
4. How can I diagnose code B3715 on my 2018 GMC Sierra?
Start by inspecting the wiper relay, wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.
5. Can a bad wiper motor cause code B3715 on a 2018 GMC Sierra?
No, this code specifically relates to the wiper relay drive circuit, not the motor itself. However, a faulty relay or electrical issue may indirectly affect motor operation.
6. How do I fix code B3715 on my 2018 GMC Sierra?
Repairs may include replacing the wiper relay, repairing damaged wiring or connectors, or reprogramming or replacing the body control module if necessary.
7. Is it safe to drive a 2018 GMC Sierra with code B3715?
While the vehicle may still be drivable, non-functional wipers can impair visibility in rain or snow, making it unsafe. Address the issue promptly.
8. How much does it cost to repair code B3715 on a 2018 GMC Sierra?
Repair costs vary but typically range from $50 to $150 for parts like a new relay, and higher if BCM replacement or reprogramming is needed.
9. Can I clear code B3715 without making repairs?
Clearing the code with a scan tool may temporarily remove it, but if the underlying issue isn’t resolved, the code and symptoms will likely return.
10. What tools do I need to troubleshoot code B3715 on a 2018 GMC Sierra?
You’ll need a scan tool capable of reading body control module codes, a multimeter for electrical testing, and basic tools for inspecting and repairing wiring or components.
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