When your vehicle’s engine control module (PCM) encounters a problem with the brake switch, it may trigger the OBD-II code P0719. This code indicates that there is a low circuit condition detected in the Brake Switch “B” system.
What Does the P0719 Code Mean?
OBD-II Code P0719 is defined as a Brake Switch “B” Circuit Low. The Brake Switch is responsible for informing the PCM when the brake pedal is pressed. This switch also controls the operation of the brake lights. If the PCM receives a signal from the Brake Switch that is outside of its expected range, it will set the P0719 code.
What Causes the P0719 Code?
Several factors can trigger the P0719 code, including:
- Brake switch failure
- Powertrain Control Module (PCM) failure
- Wiring issues related to the brake switch
What Are the Symptoms of the P0719 Code?
Common symptoms associated with the P0719 code include:
- Brake lights may not illuminate
- Cruise control will not operate
How Serious Is the P0719 Code?
The P0719 code is considered urgent. It indicates that there is a significant malfunction that requires immediate attention. Ignoring this code can lead to safety hazards, as it affects the functionality of the brake lights and cruise control, potentially putting the driver and passengers at risk.
How to Diagnose the P0719 Code
To properly diagnose the P0719 code, follow these steps:
- Use an OBD-II scanner to confirm the P0719 code.
- Inspect the brake switch for any visible damage or wear.
- Check the wiring and connectors associated with the brake switch for any signs of corrosion or disconnection.
- Test the brake switch with a multimeter to ensure it is functioning correctly.
- If necessary, check the Powertrain Control Module (PCM) for faults.
Common Repairs for the P0719 Code
Repairs for the P0719 code may include:
- Replacing the brake switch
- Repairing or replacing damaged wiring or connectors
- Reprogramming or replacing the Powertrain Control Module (PCM)
How Much Does It Cost to Fix the P0719 Code?
The cost to fix the P0719 code can vary widely based on the specific issue and labor costs in your area. Typically, you might expect to pay between $100 to $300 for repairs, depending on whether you need a simple brake switch replacement or more complex electrical work.
Can I Fix the P0719 Code Myself?
If you have experience with automotive repairs and a basic understanding of electrical systems, you may be able to troubleshoot and repair the P0719 code yourself. However, if you are unsure or lack the necessary tools, it is recommended to consult a professional mechanic to ensure the problem is properly diagnosed and repaired.
