P0573 Mercedes-Benz Code - Cruise Control/Brake Switch 'A' Circuit High
Quick Answer
The P0573 code for Mercedes-Benz indicates a problem with the Cruise Control/Brake Switch 'A' Circuit being too high. Common causes include Faulty brake switch, Wiring or electrical connection issues, Corrosion or damage to 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 Mercedes-Benz indicates Cruise Control/Brake Switch 'A' Circuit High.
- Common causes
- Common causes include Faulty brake switch, Wiring or electrical connection issues, Corrosion or damage to 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 Mercedes-Benz Description
The P0573 code for Mercedes-Benz indicates a problem with the Cruise Control/Brake Switch 'A' Circuit being too high. This means that there is an issue with the electrical circuit that controls the cruise control system in the vehicle. The cruise control system allows the driver to set a desired speed and maintain it without having to constantly press the accelerator pedal. When the brake switch circuit is high, it can prevent the cruise control system from functioning properly.
Common Causes of P0573 Mercedes-Benz
- Faulty brake switch
- Wiring or electrical connection issues
- Corrosion or damage to the brake switch circuit
- Defective cruise control module
- Software malfunction in the vehicle's onboard computer system
Symptoms of P0573 Mercedes-Benz
- Inoperative cruise control system
- Check Engine Light illuminated on the dashboard
- Difficulty engaging or disengaging the cruise control
- Intermittent or erratic cruise control behavior
- Possible issues with other systems that rely on brake input
How to Fix P0573 Mercedes-Benz
- Begin by diagnosing the specific cause of the P0573 code using a diagnostic scanner to pinpoint the issue with the brake switch circuit.
- Inspect the brake switch for any visible damage or wear and replace it if necessary.
- Check the wiring and connections related to the brake switch circuit for any signs of corrosion, fraying, or disconnection.
- Test the cruise control system to ensure proper functionality after addressing the underlying cause of the code.
- Clear the error code from the vehicle's computer system using the diagnostic scanner to reset the system and ensure the issue has been resolved.
Cost to Fix P0573 Mercedes-Benz
The typical repair costs for addressing the P0573 code in a Mercedes-Benz can range from $100 to $300, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary depending on the location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. It is recommended to inquire about local rates for a more accurate estimate.
When is the Code Detected?
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Frequently Asked Questions about P0573 Mercedes-Benz Code
1. What does the OBDII code P0573 mean on a Mercedes-Benz?
P0573 indicates a "Cruise Control/Brake Switch 'A' Circuit High" issue, meaning the brake switch is sending a signal voltage higher than expected.
2. What are the common symptoms of code P0573 in a Mercedes-Benz?
Symptoms may include the cruise control not functioning, brake lights staying on or not working, and the Check Engine Light being illuminated.
3. What causes the P0573 code to appear in a Mercedes-Benz?
Common causes include a faulty brake light switch, damaged wiring or connectors, or a malfunctioning cruise control or brake system module.
4. Can I drive my Mercedes-Benz with the P0573 code active?
While the car may still be drivable, cruise control and brake light issues can pose safety concerns, so it’s recommended to address the issue promptly.
5. How is the P0573 code diagnosed in a Mercedes-Benz?
A technician will use a scan tool to confirm the code, inspect the brake light switch, check for wiring issues, and test the circuit voltage.
6. How do I fix the P0573 code on my Mercedes-Benz?
Repairs may involve replacing the brake light switch, repairing damaged wiring, or resetting the system after addressing the root cause.
7. Can a bad brake light switch cause the P0573 code?
Yes, a faulty brake light switch is one of the most common causes of the P0573 code.
8. What tools are needed to troubleshoot the P0573 code?
Diagnosing this code typically requires an OBDII scanner, a multimeter for voltage testing, and basic tools to inspect and replace components.
9. Does fixing the P0573 code require reprogramming or ECU updates?
In most cases, reprogramming is not needed. However, after repairs, clearing the code with a scan tool may be required.
10. How much does it cost to fix the P0573 code on a Mercedes-Benz?
Repair costs vary, but replacing a brake light switch typically ranges from $50 to $150, including parts and labor. Wiring repairs may cost more depending on complexity.
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