B3873 2014 Chevrolet Silverado Code - Front Washer Relay Circuit
Quick Answer
The B3873 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado relates to the front washer relay circuit. Common causes include Faulty front washer relay, Wiring issues such as frayed or damaged wires, Corrosion or poor 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
- B3873 2014 Chevrolet Silverado indicates Front Washer Relay Circuit.
- Common causes
- Common causes include Faulty front washer relay, Wiring issues such as frayed or damaged wires, Corrosion or poor 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 B3873 2014 Chevrolet Silverado Description
The B3873 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado relates to the front washer relay circuit. This code indicates that there is a malfunction in the circuit responsible for controlling the front windshield washer system. The front washer relay is a component that controls the power supply to the front windshield washer pump, allowing the washer fluid to be sprayed onto the windshield for cleaning. When this circuit malfunctions, it can result in the front windshield washer system not functioning properly, which can compromise visibility and safety while driving.
Common Causes of B3873 2014 Chevrolet Silverado
- Faulty front washer relay.
- Wiring issues such as frayed or damaged wires.
- Corrosion or poor connections in the circuit.
- Defective front washer pump.
- Issues with the washer fluid reservoir or tubing.
Symptoms of B3873 2014 Chevrolet Silverado
- Front windshield washer not spraying fluid onto the windshield.
- Weak or intermittent washer fluid spray.
- Front washer pump not activating when washer switch is pressed.
- Washer fluid leaking from under the vehicle.
- Dashboard warning light indicating a washer system malfunction.
How to Fix B3873 2014 Chevrolet Silverado
- Begin by inspecting the front washer relay and associated wiring for any visible damage or corrosion. Replace the relay if necessary.
- Check the front washer pump for proper operation and replace if it is found to be faulty.
- Inspect the wiring harness and connections for any loose or damaged wires. Repair or replace as needed.
- Test the front washer system to ensure that the issue has been resolved and that the washer fluid sprays onto the windshield effectively.
- Clear the diagnostic trouble code from the vehicle's computer system using a scan tool to reset the system and turn off any warning lights.
Cost to Fix B3873 2014 Chevrolet Silverado
The typical repair costs for addressing a front washer relay circuit issue can vary depending on the specific cause of the problem and the extent of the repairs needed. In general, the cost of replacing a front washer relay can range from $50 to $150, while replacing a front washer pump can cost between $100 and $200. Labor costs at auto repair shops typically range from $80 to $150 per hour, but rates may vary based on location and the shop's pricing structure. It is recommended to obtain a detailed estimate from a qualified mechanic to determine the exact cost of repairing the front washer relay circuit on a 2014 Chevrolet Silverado.
Tech Notes for B3873 2014 Chevrolet Silverado
B3873:02 Front Washer Relay Circuit Short to Ground
B3873:04 Front Washer Relay Circuit Open
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Frequently Asked Questions about B3873 2014 Chevrolet Silverado Code
1. What does OBDII code B3873 mean on a 2014 Chevrolet Silverado?
Code B3873 indicates an issue with the Front Washer Relay Circuit, which controls the operation of the windshield washer system.
2. What are the common symptoms of code B3873 on a 2014 Chevrolet Silverado?
Symptoms include the windshield washer system not working, no washer fluid spraying, or intermittent washer operation.
3. What causes code B3873 to appear in a 2014 Chevrolet Silverado?
Common causes include a faulty front washer relay, damaged wiring or connections in the washer circuit, or a malfunctioning body control module (BCM).
4. Can a blown fuse cause code B3873 in a 2014 Chevrolet Silverado?
Yes, a blown fuse in the windshield washer circuit can disrupt the relay function and trigger this code.
5. How do you diagnose code B3873 on a 2014 Chevrolet Silverado?
Diagnosis involves inspecting the washer relay, checking for damaged wiring or loose connections, testing circuit voltage, and scanning the BCM for additional codes.
6. How do you fix code B3873 on a 2014 Chevrolet Silverado?
Repairs may include replacing the front washer relay, repairing damaged wiring, cleaning corroded connections, or reprogramming/replacing the BCM if necessary.
7. Can I still drive my 2014 Chevrolet Silverado with code B3873?
Yes, but the windshield washer system may not function, which could impair visibility in adverse weather conditions and compromise safety.
8. How much does it cost to repair code B3873 on a 2014 Chevrolet Silverado?
The cost varies depending on the issue, ranging from $20–$50 for a relay replacement to a few hundred dollars if BCM repair or replacement is needed.
9. Can I fix code B3873 on my 2014 Chevrolet Silverado myself?
If you're comfortable with basic electrical troubleshooting, you can check and replace the washer relay or inspect the wiring. For BCM issues, professional assistance is recommended.
10. Does code B3873 require a software update for the 2014 Chevrolet Silverado?
In some cases, a BCM software update from the dealership may resolve the issue if no physical component faults are found.
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