B3707 Buick Code - Front Washer Motor Input Low
Quick Answer
The Body Control Module (BCM) monitors the windshield washer pump control circuit. Common causes include Faulty Front Washer Motor, Front Washer Motor harness is open or shorted, Front Washer Motor 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
- B3707 Buick indicates Front Washer Motor Input Low.
- Common causes
- Common causes include Faulty Front Washer Motor, Front Washer Motor harness is open or shorted, Front Washer Motor 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 B3707 Buick Description
Battery voltage for the windshield washer pump is supplied through the FRT WIPER 25 A fuse and windshield wiper washer switch. Grounding for the windshield washer pump is through the OFF position of the rear washer switch, when equipped. The Diagnostic Trouble Code (DTC) sets when the front windshield washer pump control circuit is shorted to ground for 2 minutes.
What are the Possible Causes of the DTC B3707 Buick?
- Faulty Front Washer Motor
- Front Washer Motor harness is open or shorted
- Front Washer Motor circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B3707 Buick?
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 B3707 Buick 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 B3707 Buick Code
1. What does the OBDII code B3707 mean on a Buick?
Code B3707 indicates a "Front Washer Motor Input Low" issue, meaning the washer motor circuit is experiencing low voltage or electrical problems.
2. What are the symptoms of code B3707 in a Buick?
Common symptoms include the windshield washer system not working, failure to spray washer fluid, or intermittent operation of the washer motor.
3. What causes the B3707 code to appear?
Common causes include a faulty windshield washer motor, damaged wiring or connectors, a blown fuse, or a malfunctioning control module.
4. How can I diagnose the B3707 code on my Buick?
Start by inspecting the washer motor, wiring, and connectors for damage or corrosion. Check for proper voltage at the motor and test the fuse related to the washer system.
5. Can I still drive my Buick with the B3707 code?
Yes, this code does not affect drivability, but it may impair visibility if the windshield washer system is non-functional.
6. How do I fix the B3707 code on my Buick?
Repairs may include replacing the washer motor, repairing damaged wiring, cleaning corroded connectors, or replacing the related fuse.
7. How much does it cost to fix the B3707 code?
Repair costs vary but typically range from $50 to $200, depending on whether the washer motor or wiring needs replacement.
8. Can a bad fuse trigger the B3707 code on a Buick?
Yes, a blown fuse in the windshield washer system circuit can cause low voltage and trigger the B3707 code.
9. What tools do I need to troubleshoot the B3707 code on my Buick?
A multimeter, OBDII scanner, and basic hand tools are usually sufficient to diagnose and repair this issue.
10. Should I reset the B3707 code after repairs?
Yes, use an OBDII scanner to clear the code after completing repairs to confirm the issue has been resolved.
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