P0573 Buick Code - Brake Switch Circuit High Voltage
Quick Answer
The P0573 Buick code indicates a problem with the brake switch circuit that is reporting high voltage. Common causes include Faulty brake switch, Short circuit in the brake switch circuit, Corroded or damaged wiring in the brake switch 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
- P0573 Buick indicates Brake Switch Circuit High Voltage.
- Common causes
- Common causes include Faulty brake switch, Short circuit in the brake switch circuit, Corroded or damaged wiring in the brake switch 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.
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Code P0573 Buick Description
The P0573 Buick code indicates a problem with the brake switch circuit that is reporting high voltage. The brake switch is a crucial component of the vehicle's braking system, as it sends a signal to the vehicle's computer when the brake pedal is pressed. This signal is used to activate the brake lights, deactivate cruise control, and in some cases even assist with transmission shifting. When the brake switch circuit reports high voltage, it can cause issues with the proper operation of these systems.
Common Causes of P0573 Buick
- Faulty brake switch.
- Short circuit in the brake switch circuit.
- Corroded or damaged wiring in the brake switch circuit.
- Issues with the brake switch control module.
- Faulty brake pedal position sensor.
Symptoms of P0573 Buick
- Brake lights staying on constantly.
- Cruise control not working.
- Difficulty shifting out of park.
- ABS warning light illuminated on the dashboard.
- Check Engine Light (CEL) is on.
How to Fix P0573 Buick
- Begin by inspecting the brake switch and its wiring for any visible damage or corrosion. Replace the brake switch if necessary.
- Check the brake switch control module for any faults or malfunctions. Replace if needed.
- Test the brake pedal position sensor to ensure it is functioning correctly. Replace if faulty.
- Inspect and repair any short circuits or damaged wiring in the brake switch circuit.
- Clear the diagnostic trouble codes and test the vehicle to ensure the issue has been resolved.
Cost to Fix P0573 Buick
The cost of repairing a P0573 Buick code can vary depending on the specific cause of the issue. In general, the cost of replacing a brake switch can range from $50 to $150, while replacing a brake pedal position sensor can cost between $100 and $200. Labor costs can add an additional $80 to $150 per hour, depending on the shop and location. It's recommended to consult with a trusted mechanic to get a more accurate estimate based on your vehicle's make and model.
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Frequently Asked Questions about P0573 Buick Code
1. What does the OBDII code P0573 mean on a Buick?
P0573 indicates a "Brake Switch Circuit High Voltage" issue, meaning the powertrain control module (PCM) has detected a higher-than-normal voltage in the brake switch circuit.
2. What are the common symptoms of code P0573 in a Buick?
Symptoms may include the brake lights not functioning properly, cruise control being inoperative, and a potential check engine light or ABS warning light.
3. What causes the P0573 code on a Buick?
Common causes include a faulty brake light switch, damaged or corroded wiring, a poor electrical connection, or a blown fuse in the brake light circuit.
4. Can I drive my Buick with the P0573 code?
While the car may still be drivable, it's not recommended, as malfunctioning brake lights and cruise control can create safety hazards.
5. How do I diagnose the P0573 code on a Buick?
Start by inspecting the brake light switch, wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.
6. How do I fix the P0573 code on my Buick?
Repairs may include replacing a faulty brake light switch, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing a blown fuse.
7. What tools are needed to fix the P0573 code in a Buick?
You may need a multimeter, a scan tool or OBDII code reader, and basic hand tools to access and repair the brake light switch or wiring.
8. How much does it cost to fix the P0573 code on a Buick?
Repair costs can vary but typically range from $50 to $200, depending on whether the issue is with the brake light switch, wiring, or connectors.
9. Can a bad brake light bulb cause the P0573 code in a Buick?
A bad bulb is unlikely to trigger this code, as it specifically relates to high voltage in the brake switch circuit, not the bulbs themselves.
10. Will clearing the P0573 code fix the problem?
Clearing the code may temporarily turn off the check engine light, but the issue will return unless the underlying problem is properly addressed.
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