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2001 GMC YUKON XL 2500
6.0L V8 Vortec•4WD•AUTOMATIC•gas
9 active safety recalls on this vehicle — view recalls
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Repairs0Labor492Torque1427Fluid10DTC1767Battery1Maintenance0Recalls9
P0533low severityPowertrain

A/C Refrigerant Pressure Sensor Circuit High Input

on 2001 GMC Yukon XL 2500 6.0L V8 Vortec · 4WD

What this code means

The A/C pressure sensor signal voltage is too high. This may indicate an open circuit or excessive system pressure.

Symptoms

  • A/C not cooling properly
  • Compressor disengages
  • Check engine light on

Common causes

  • Overcharged refrigerant
  • Faulty pressure sensor
  • Open circuit in wiring
  • Bad connector

Diagnostic steps

  1. Retrieve codes
  2. Check system refrigerant pressure
  3. Inspect wiring for opens
  4. Test sensor voltage output
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Other Powertrain codes on this vehicle

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