P0572 – Brake Switch B Low

Description

The ECM detects a low voltage condition in brake switch B.

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Symptoms

  • Brake lights not working
  • Cruise control disabled

Causes

  • Short to ground
  • Faulty brake switch
  • Wiring issues

Diagnosis

  • Monitor brake switch data
  • Inspect wiring
  • Check switch

Repair

  • Replace brake switch
  • Repair wiring