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Engine-Codes – Generic – P0719

P0719 Code - Brake Switch Circuit Low Input

Quick Answer

The P0719 code indicates a problem with the brake switch circuit in a vehicle. Common causes include Faulty brake switch, Short in the brake switch circuit, Wiring issues or corrosion in the circuit. 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
P0719 indicates Brake Switch Circuit Low Input.
Common causes
Common causes include Faulty brake switch, Short in the brake switch circuit, Wiring issues or corrosion in the circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P0719 Description

The P0719 code indicates a problem with the brake switch circuit in a vehicle. The brake switch is a crucial component that sends a signal to the vehicle's engine control module (ECM) when the brake pedal is depressed. This signal is used by the ECM to control various functions such as disengaging cruise control, shifting gears in automatic transmissions, and turning on brake lights.

OBDII Code P0719 - Brake Switch Circuit Low Input
P0719 Code - Brake Switch Circuit Low Input

Common Causes of P0719

  1. Faulty brake switch
  2. Short in the brake switch circuit
  3. Wiring issues or corrosion in the circuit
  4. ECM software or hardware malfunction
  5. Faulty ECM

Symptoms of P0719

  1. Brake lights not working properly
  2. Cruise control not disengaging when braking
  3. Difficulty shifting gears in an automatic transmission
  4. Check Engine Light illuminated
  5. Decreased fuel efficiency

How to Fix P0719

  1. Begin by diagnosing the issue using a diagnostic scanner to retrieve the trouble codes and pinpoint the source of the problem.
  2. Inspect the brake switch and its wiring for any visible damage or corrosion. Replace the brake switch if necessary.
  3. Check the brake switch circuit for any shorts or breaks in the wiring. Repair or replace any damaged wires.
  4. Test the ECM to ensure it is functioning correctly. If the ECM is faulty, it may need to be replaced or reprogrammed.
  5. Clear the trouble codes from the ECM's memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0719

The cost of repairing a P0719 code can vary depending on the specific cause of the issue and the vehicle's make and model. In general, the cost of replacing a faulty brake switch can range from $50 to $150, while repairing wiring issues or replacing the ECM can cost significantly more. Labor costs for this repair can range from $100 to $300, depending on the shop's hourly rates and the complexity of the repair. It is recommended to consult with a trusted mechanic or repair shop for a more accurate cost estimate based on your vehicle's specific needs.

When is the Code Detected?

Vehicle speed over 35 MPH and down to 0 MPH 5 times-No change in brake switch input detected

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Code P0719 Information for Specific Makes

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.

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