B3873:04 Code - Front Washer Relay Circuit Open
Quick Answer
The B3873:04 diagnostic trouble code (DTC) indicates that there is an open circuit in the front washer relay of the vehicle. Common causes include Faulty front washer relay, Corroded or damaged wiring connections, Blown fuse related to the windshield washer system. 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
- B3873:04 indicates Front Washer Relay Circuit Open.
- Common causes
- Common causes include Faulty front washer relay, Corroded or damaged wiring connections, Blown fuse related to the windshield washer system.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B3873:04 Description
The B3873:04 diagnostic trouble code (DTC) indicates that there is an open circuit in the front washer relay of the vehicle. The front washer relay is responsible for controlling the operation of the windshield washer system, which sprays washer fluid onto the windshield to clean it while driving. An open circuit means that there is a break or interruption in the electrical connection that prevents the relay from functioning properly. This can result in the windshield washer system not working at all, leading to visibility issues and potentially compromising safety while driving.
Common Causes of B3873:04
- Faulty front washer relay
- Corroded or damaged wiring connections
- Blown fuse related to the windshield washer system
- Defective windshield washer pump
- Issues with the windshield washer switch or control module
Symptoms of B3873:04
- Inoperative windshield washer system
- Dirty windshield due to lack of washer fluid
- Reduced visibility while driving, especially in adverse weather conditions
- Ineffective windshield wipers without washer fluid
How to Fix B3873:04
- Begin by inspecting the front washer relay and associated wiring for any visible damage or corrosion.
- Test the front washer relay using a multimeter to determine if it is functioning properly. Replace the relay if it is found to be faulty.
- Check the fuse related to the windshield washer system and replace it if necessary.
- Inspect the windshield washer pump for any signs of damage or malfunction. Replace the pump if it is not working correctly.
- Verify the operation of the windshield washer switch or control module and replace if needed.
Cost to Fix B3873:04
The typical repair costs for addressing a front washer relay circuit open issue can vary depending on the specific cause of the problem and the cost of parts and labor. On average, the repair for this issue may range from $100 to $300, including parts and labor. However, it is important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is recommended to check with local auto repair shops for a more accurate estimate based on your specific circumstances.
Tech Notes for B3873:04
B3873:02 Front Washer Relay Circuit Short to Ground
B3873:04 Front Washer Relay Circuit Open
Need more information about the B3873:04 code?
Need more information on how to fix the B3873:04 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B3873:04 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B3873:04 Code
No Frequently Asked Questions about B3873:04 Code found.
Discuss the causes and fixes for B3873:04 OBDII Code
Code B3873:04 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.