P0534 OBD II Trouble Code Air Conditioner Refrigerant Charge Loss

How to easily diagnose, repair, and symptoms and causes of a P0534 code that indicates an air conditioning refrigerant charge loss.

Symptoms of P0534 OBD II Trouble Code

  • The a/c will not blow cold air
  • The a/c compressor switch may flash
  • The compressor clutch may cycle on and off repeatedly
  • A/C compressor clutch engagement may be disabled

Common Causes of P0534 OBD II Trouble Code

  • Freon leak (low freon) in the a/c system
  • Bad low pressure cutoff switch
  • Open or shorted circuit or connector in the a/c system

Severity of P0534 OBD II Trouble Code

A stored code P0534 pertains exclusively to the a/c system and does not affect engine drivability. It should not be classified as severe.