C1939 Ford Code - Brake Pressure Switch Input Circuit Failure
Quick Answer
The Anti-Lock Brake System (ABS) Module monitors the Brake Pressure Switch (BPS). Common causes include Faulty Brake Pressure Switch (BPS), Brake Pressure Switch (BPS) harness is open or shorted, Brake Pressure Switch (BPS) 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
- C1939 Ford indicates Brake Pressure Switch Input Circuit Failure.
- Common causes
- Common causes include Faulty Brake Pressure Switch (BPS), Brake Pressure Switch (BPS) harness is open or shorted, Brake Pressure Switch (BPS) 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 C1939 Ford Description
What are the Possible Causes of the DTC C1939 Ford?
- Faulty Brake Pressure Switch (BPS)
- Brake Pressure Switch (BPS) harness is open or shorted
- Brake Pressure Switch (BPS) circuit poor electrical connection
How to Fix the DTC C1939 Ford?
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 C1939 Ford 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.
Need more information about the C1939 Ford code?
Need more information on how to fix the C1939 Ford code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1939 Ford code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about C1939 Ford Code
1. What are the common symptoms of OBDII code C1939 Ford (Brake Pressure Switch Input Circuit Failure)?
- Common symptoms include the illumination of the brake warning light on the dashboard, issues with the brake system functionality, and potential loss of brake performance.
2. What can cause the OBDII code C1939 Ford to trigger?
- The code C1939 Ford is usually triggered by a faulty brake pressure switch, damaged wiring or connectors in the brake pressure switch circuit, or an issue with the brake control module.
3. How serious is the Brake Pressure Switch Input Circuit Failure OBDII code C1939 Ford?
- The code C1939 Ford is a serious issue as it directly affects the proper functioning of the brake system, which is a critical component for vehicle safety. It is important to address this code promptly.
4. Can I continue driving with the OBDII code C1939 Ford active?
- It is not recommended to continue driving with the C1939 Ford code active, as it can lead to potential brake system malfunctions and compromise vehicle safety. It is best to address the issue as soon as possible.
5. How can I diagnose the cause of OBDII code C1939 Ford (Brake Pressure Switch Input Circuit Failure)?
- Diagnosing the code typically involves using a scan tool to retrieve the fault codes, checking the brake pressure switch and its wiring for any visible damage, and testing the brake pressure switch circuit for proper functionality.
6. What are some repair tips for fixing the Brake Pressure Switch Input Circuit Failure OBDII code C1939 Ford?
- Repair tips may include replacing the faulty brake pressure switch, repairing or replacing damaged wiring or connectors, and clearing the code with a scan tool after completing the repairs.
7. Is it possible to reset the OBDII code C1939 Ford without fixing the underlying issue?
- Resetting the code without addressing the underlying issue will only temporarily turn off the warning light. The code is likely to reappear if the root cause of the problem is not resolved.
8. How much does it typically cost to repair the OBDII code C1939 Ford (Brake Pressure Switch Input Circuit Failure)?
- The cost of repair can vary depending on the extent of the issue and whether the repair is done at a dealership or an independent mechanic. It's advisable to get a diagnostic and repair estimate from a professional.
9. Are there any preventive maintenance steps to avoid the OBDII code C1939 Ford in the future?
- Regular inspection of the brake system, including the brake pressure switch and its wiring, can help prevent issues that may trigger the C1939 Ford code. Additionally, following the manufacturer's recommended maintenance schedule is crucial.
10. Can the OBDII code C1939 Ford be related to other brake system problems?
- Yes, the C1939 Ford code can be related to other brake system problems, as it indicates a fault in the brake pressure switch circuit. It is important to address this code promptly and inspect the entire brake system for any potential issues.
Discuss the causes and fixes for C1939 Ford OBDII Code
Code C1939 Ford 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.
