B3873 2014 GMC Sierra Code - Front Washer Relay Circuit
Quick Answer
The windshield washer function is controlled by the Body Control Module (BCM). Common causes include Faulty Front Washer Relay, Front Washer Relay harness is open or shorted, Front Washer 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
- B3873 2014 GMC Sierra indicates Front Washer Relay Circuit.
- Common causes
- Common causes include Faulty Front Washer Relay, Front Washer Relay harness is open or shorted, Front Washer 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.
Code B3873 2014 GMC Sierra Description
What are the Possible Causes of the DTC B3873 2014 GMC Sierra?
- Faulty Front Washer Relay
- Front Washer Relay harness is open or shorted
- Front Washer Relay circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B3873 2014 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.
Code Tech Notes
B3873:02 Front Washer Relay Circuit Short to Ground
B3873:04 Front Washer Relay Circuit Open
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B3873 2014 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.
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Frequently Asked Questions about B3873 2014 GMC Sierra Code
1. What are the common symptoms of OBDII code B3873 in a 2014 GMC Sierra related to the Front Washer Relay Circuit?
The common symptoms include the front windshield washer system not working properly, failure of the washer pump to activate, or no washer fluid being sprayed onto the windshield.
2. What are the possible causes of OBDII code B3873 in a 2014 GMC Sierra?
Possible causes include a faulty front washer relay, a malfunctioning washer pump, damaged wiring or connectors in the front washer circuit, or a blown fuse related to the washer system.
3. How can I diagnose the Front Washer Relay Circuit issue triggering OBDII code B3873 in my 2014 GMC Sierra?
You can start by checking the washer fluid level, inspecting the washer pump for functionality, examining the wiring and connectors for any damage or corrosion, and testing the front washer relay for proper operation.
4. Can I temporarily fix the Front Washer Relay Circuit problem associated with OBDII code B3873 in my 2014 GMC Sierra?
If the issue is with a faulty relay or a blown fuse, you may be able to temporarily fix the problem by replacing the relay or fuse. However, it is recommended to address the root cause of the issue for a long-term solution.
5. Should I continue driving my 2014 GMC Sierra with OBDII code B3873 related to the Front Washer Relay Circuit issue?
It is generally safe to continue driving your vehicle with this code, but you should address the problem as soon as possible to ensure the proper functioning of your front washer system, especially in adverse weather conditions.
6. How much does it typically cost to repair the Front Washer Relay Circuit issue causing OBDII code B3873 in a 2014 GMC Sierra?
The cost of repair can vary depending on the exact cause of the issue. Simple fixes like replacing a relay or fuse may cost less, while more complex repairs involving the washer pump or wiring could be more expensive.
7. Can a DIY enthusiast with basic automotive knowledge fix the Front Washer Relay Circuit problem triggering OBDII code B3873 in a 2014 GMC Sierra?
Yes, if you have basic automotive knowledge and the necessary tools, you may be able to diagnose and fix simple issues like a faulty relay or blown fuse. However, more complex problems may require professional assistance.
8. Will resetting the OBDII system clear the B3873 code related to the Front Washer Relay Circuit in my 2014 GMC Sierra?
Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the code is not fixed, the code is likely to reappear upon further diagnosis or vehicle operation.
9. Are there any preventive maintenance tips to avoid encountering OBDII code B3873 in a 2014 GMC Sierra?
Regularly checking and topping up washer fluid, ensuring the washer system components are in good condition, and addressing any issues promptly can help prevent the Front Washer Relay Circuit problem and associated OBDII code.
10. How important is it to address OBDII code B3873 concerning the Front Washer Relay Circuit in a 2014 GMC Sierra?
Addressing the code promptly is important to ensure the proper functioning of your front washer system, maintain visibility while driving, and prevent potential safety hazards due to impaired windshield washer operation.
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