P0573
Brake Switch A Circuit High
P0573 is an OBD-II diagnostic trouble code meaning: Brake Switch A Circuit High. Common causes: faulty brake light switch, short circuit in the circuit. Estimated repair cost: $22–56.
Symptoms
- Cruise control doesn't work
- Brake lights stay on or don't work
- Problems starting the engine (on some models)
- Check Engine light comes on
Causes
- Faulty brake light switch
- Short circuit in the circuit
- Damaged wiring harness
- Grounding problems
- Engine control unit (ECU) malfunction
How to Fix
- Check the operation of the brake light switch
- Inspect the wiring harness for damage
- Check continuity with a multimeter
- Replace the brake light switch if necessary
- Check and restore circuit grounding
- Scan the system for other errors
Related codes
Error P0573 by Vehicle Brand
FAQ
What does the P0573 code mean?
P0573 is an OBD-II diagnostic trouble code that indicates: Brake Switch A Circuit High
What causes a P0573 error code?
The most common causes of P0573 include: Faulty brake light switch; Short circuit in the circuit; Damaged wiring harness; Grounding problems.
How do I fix a P0573 diagnostic trouble code?
To fix P0573: Check the operation of the brake light switch. Inspect the wiring harness for damage. Check continuity with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0573?
Limited driving only, diagnose soon
How much does it cost to fix P0573?
The estimated repair cost for P0573 is $22–56. Actual cost depends on your vehicle, location, and labor rates.
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