P0573Low SeverityEngine

Brake Switch High Input Signal B

What This Means

The brake switch signal voltage is above maximum threshold. This input helps the engine computer coordinate with brake switch operation.

Common Symptoms

System malfunction
Brake Switch issues
Check engine light on
Unexpected behavior

Common Causes

Faulty brake switch switch
Wiring damage
Connector issue
Circuit fault
PCM input failure

Estimated Repair Cost

$50 – $350

Parts and labor (varies by vehicle and location)

Difficulty:Easy

Need This Fixed?

Find certified mechanics near you who can diagnose and repair P0573.

Find a Shop Near You

Search Another Code

For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.