P1571 Honda Code - Brake Switch Circuit Malfunction
Quick Answer
The P1571 diagnostic trouble code (DTC) for Honda vehicles indicates a Brake Switch Circuit Malfunction. Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Defective ECM. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P1571 Honda indicates Brake Switch Circuit Malfunction.
- Common causes
- Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Defective ECM.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code P1571 Honda Description
The P1571 diagnostic trouble code (DTC) for Honda vehicles indicates a Brake Switch Circuit Malfunction. This code is triggered when the Engine Control Module (ECM) detects a problem with the brake switch circuit, which is responsible for informing the ECM when the brake pedal is pressed. The brake switch is a crucial component that plays a key role in various vehicle systems, including the brake lights, cruise control, and transmission shift interlock. When the brake switch malfunctions, it can lead to issues with brake light operation, cruise control functionality, and even affect the transmission shifting process.
Common Causes of P1571 Honda
- Faulty brake switch.
- Damaged wiring or connectors in the brake switch circuit.
- Defective ECM.
- Malfunctioning brake pedal position sensor.
- Corrosion or moisture in the brake switch circuit.
Symptoms of P1571 Honda
- Brake lights not illuminating when the brake pedal is pressed.
- Inoperative cruise control system.
- Difficulty shifting out of park.
- Check Engine Light illuminated on the dashboard.
- Possible ABS warning light or traction control light on the dashboard.
How to Fix P1571 Honda
- Begin by diagnosing the specific cause of the Brake Switch Circuit Malfunction using a diagnostic scan tool.
- Inspect the brake switch, wiring, and connectors for any visible damage or signs of wear.
- Test the brake switch using a multimeter to ensure proper functionality.
- Replace the faulty brake switch if necessary, ensuring proper installation and adjustment.
- Clear the DTC from the ECM memory and perform a test drive to verify that the issue has been resolved.
Cost to Fix P1571 Honda
The typical repair costs for addressing a Brake Switch Circuit Malfunction can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It is essential to note that the diagnosis time and labor rates at auto repair shops can vary based on location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships and lower at independent shops. To obtain a more precise estimate, it is recommended to inquire about local rates before proceeding with the repair.
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