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P1571 Mitsubishi Code - Brake Switch Circuit Malfunction

Quick Answer

The P1571 Mitsubishi code indicates a malfunction in the brake switch circuit of the vehicle. Common causes include Faulty brake switch, Wiring issues in the brake switch circuit, Corrosion or damage to the brake switch components. 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 Mitsubishi indicates Brake Switch Circuit Malfunction.
Common causes
Common causes include Faulty brake switch, Wiring issues in the brake switch circuit, Corrosion or damage to the brake switch components.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P1571 Mitsubishi Description

The P1571 Mitsubishi code indicates a malfunction in the brake switch circuit of the vehicle. The brake switch is an essential component that sends a signal to the vehicle's computer when the brake pedal is depressed. This signal is used to activate the brake lights and disengage the cruise control, among other functions. When this circuit malfunctions, it can lead to various issues with the vehicle's braking system and overall performance.

OBDII Code P1571 Mitsubishi - Brake Switch Circuit Malfunction
P1571 Mitsubishi Code - Brake Switch Circuit Malfunction

Common Causes of P1571 Mitsubishi

  1. Faulty brake switch
  2. Wiring issues in the brake switch circuit
  3. Corrosion or damage to the brake switch components
  4. Electronic control module (ECM) failure
  5. Brake fluid leak affecting the circuit

Symptoms of P1571 Mitsubishi

  1. Brake lights not functioning properly
  2. Cruise control not disengaging when brakes are applied
  3. Difficulty shifting gears
  4. ABS warning light illuminated on the dashboard
  5. Vehicle going into limp mode

How to Fix P1571 Mitsubishi

  1. Begin by diagnosing the issue using a diagnostic scanner to confirm the P1571 code.
  2. Inspect the brake switch and its wiring for any visible damage or corrosion.
  3. Test the brake switch for continuity and proper function.
  4. Replace the brake switch if it is found to be faulty.
  5. Clear the code and test the vehicle to ensure the issue has been resolved.

Cost to Fix P1571 Mitsubishi

The cost of repairing a brake switch circuit malfunction can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $100 and $300 for parts and labor. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing. It is recommended to obtain quotes from several auto repair shops to get a more accurate estimate for your specific situation.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1571 Mitsubishi Code

1. What does the OBDII code P1571 mean for a Mitsubishi vehicle?

P1571 indicates a Brake Switch Circuit Malfunction, meaning the vehicle's ECU has detected an issue with the brake switch or its associated circuitry.

2. What are the common symptoms of code P1571 in a Mitsubishi?

Symptoms may include the brake lights not functioning, cruise control being inoperative, ABS warning light activation, or difficulty shifting out of park.

3. What causes the P1571 code to trigger?

The most common causes include a faulty brake light switch, damaged or corroded wiring, a misadjusted brake switch, or a blown fuse in the brake light circuit.

4. Can I drive my Mitsubishi with a P1571 code?

Driving with this code is possible but not recommended, as it could lead to safety issues such as non-functional brake lights or compromised cruise control and ABS systems.

5. How can I diagnose the P1571 code in a Mitsubishi?

Start by inspecting the brake light switch and its wiring for damage or corrosion. Check the fuse, test the switch's operation with a multimeter, and verify the brake lights are working properly.

6. How do I fix the P1571 code on a Mitsubishi vehicle?

Repairs may include replacing the faulty brake light switch, repairing damaged wiring, cleaning corroded connections, adjusting the switch position, or replacing a blown fuse in the circuit.

7. How much does it cost to repair a P1571 code in a Mitsubishi?

The cost can vary, but replacing a brake light switch typically costs $50–$150, including parts and labor. Wiring repairs may increase the cost depending on the extent of the damage.

8. Can a misaligned brake switch cause the P1571 code?

Yes, a brake switch that is out of alignment may fail to engage or disengage properly, triggering the P1571 code.

9. Will resetting the ECU clear the P1571 code?

Resetting the ECU may temporarily clear the code, but if the underlying issue is not fixed, the code will likely return.

10. Can a faulty brake light switch affect other systems in the car?

Yes, a malfunctioning brake light switch can impact systems like ABS, traction control, and cruise control, as they rely on brake switch signals to function properly.

Discuss the causes and fixes for P1571 Mitsubishi OBDII Code

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  • I have obdc2 code P1571 and P1500 my check engine light is on BUT my nuetral light above the drive light in my dash is flashing when I am in drive and moving?I recently had a bunch of different things done to my car . axel boots all replaced new alternator new battery new tires valve seals and gasket as well as a full tuneup after 1000 bucks worth of repair i am ticked off that it dares have something wrong with it. the flashing neutral light really freaks me out. 1998 mitsubishi mirage DE

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  • Let me check if I can find more information on those codes. What model and year is your vehicle?

    Reply to Comment