P0530 - OBD II Trouble Code

January 31, 2017

Our automotive experts have put together the following information about the P0530 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0530 code.

What Does P0530 Code Mean?

OBD-II Code P0530 is defined as a A/C Refrigerant Pressure Sensor "A" Circuit

The engine control module (PCM) uses pressure sensors to monitor the high pressure side of the A/C System. When the pressure gets high, the PCM will command the cooling fans on. If the PCM detects an irrational signal from the sensor, it will set code P0530.

P0530 Symptoms

  • A/C may not operate
  • Cooling fans may stay on all the time

Common Problems That Trigger the P0530 Code

  • A/C pressure sensor failure
  • Powertrain Control Module (PCM) failure
  • Wiring issue

About the Author

Brad Kava is an automotive expert at RepairPal, the leading online source of auto repair resources and estimates. With many ASE Master certified mechanics on staff who have decades of experience, RepairPal knows all the fine points of car repair.

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