B3707 Cadillac 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 Cadillac 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 Cadillac 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 Cadillac?
- 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 Cadillac?
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 Cadillac 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 Cadillac Code
1. What does the OBDII code B3707 mean on a Cadillac?
The code B3707 indicates a "Front Washer Motor Input Low," meaning the washer motor circuit is not receiving the proper voltage signal.
2. What are the common symptoms of the B3707 code?
Symptoms may include the windshield washer system not working, no fluid spraying, or an illuminated warning light on the dashboard.
3. What causes the B3707 code to appear?
Common causes include a faulty front washer motor, damaged wiring or connectors, a blown fuse, or a malfunctioning Body Control Module (BCM).
4. Can a bad fuse trigger the B3707 code?
Yes, a blown fuse in the washer motor circuit can cause the B3707 code by cutting power to the system.
5. How do I diagnose the B3707 code on my Cadillac?
Start by inspecting the washer motor, wiring, and connectors for visible damage. Then check the fuse and test the voltage at the washer motor using a multimeter.
6. How do I fix the B3707 code on my Cadillac?
Repairs may include replacing the washer motor, repairing or replacing damaged wiring, or replacing a blown fuse in the washer circuit.
7. Can the B3707 code be caused by a bad Body Control Module (BCM)?
Yes, if the BCM is not properly processing the washer motor signal, it can trigger the B3707 code, though this is less common.
8. Is it safe to drive with the B3707 code active?
Yes, it is safe to drive; however, your windshield washer system may not function, which could impair visibility in poor weather conditions.
9. How much does it cost to repair the B3707 code?
The cost can vary but typically ranges from $50 to $150 for parts like a washer motor or fuse, plus labor if professional help is needed.
10. Can clearing the B3707 code fix the problem?
Clearing the code will remove it temporarily, but if the underlying issue isn’t resolved, the code will likely return.
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