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Engine-Codes – GMC – P0533 2014 GMC Sierra

P0533 2014 GMC Sierra Code - A/C Refrigerant Pressure Sensor Circuit High Input

Quick Answer

The P0533 diagnostic trouble code (DTC) for a 2014 GMC Sierra refers to the A/C Refrigerant Pressure Sensor Circuit High Input. Common causes include Faulty A/C refrigerant pressure sensor, Wiring or connector issues in the A/C refrigerant pressure sensor circuit, Low refrigerant levels in the A/C system. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0533 2014 GMC Sierra indicates A/C Refrigerant Pressure Sensor Circuit High Input.
Common causes
Common causes include Faulty A/C refrigerant pressure sensor, Wiring or connector issues in the A/C refrigerant pressure sensor circuit, Low refrigerant levels in the A/C system.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P0533 2014 GMC Sierra Description

The P0533 diagnostic trouble code (DTC) for a 2014 GMC Sierra refers to the A/C Refrigerant Pressure Sensor Circuit High Input. This code indicates that the A/C system's refrigerant pressure sensor is detecting a higher than normal voltage input, which could be caused by a variety of issues within the system. The A/C refrigerant pressure sensor is responsible for monitoring the pressure of the refrigerant in the A/C system and sending this information to the vehicle's engine control module (ECM). The ECM uses this data to regulate the A/C compressor clutch engagement and ensure proper cooling performance.

OBDII Code P0533 2014 GMC Sierra - A/C Refrigerant Pressure Sensor Circuit High Input
P0533 2014 GMC Sierra Code - A/C Refrigerant Pressure Sensor Circuit High Input

Common Causes of P0533 2014 GMC Sierra

  1. Faulty A/C refrigerant pressure sensor
  2. Wiring or connector issues in the A/C refrigerant pressure sensor circuit
  3. Low refrigerant levels in the A/C system
  4. A/C compressor clutch malfunction
  5. ECM malfunction

Symptoms of P0533 2014 GMC Sierra

  1. Ineffective cooling from the A/C system
  2. A/C system not working at all
  3. Engine performance issues
  4. Illumination of the check engine light

How to Fix P0533 2014 GMC Sierra

  1. Begin by diagnosing the A/C system using a scan tool to retrieve the specific trouble code and pinpoint the issue.
  2. Inspect the A/C refrigerant pressure sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Check the refrigerant levels in the A/C system and recharge if low. Repair any leaks in the system.
  4. Test the A/C compressor clutch for proper operation and replace if faulty.
  5. Clear the trouble code from the ECM's memory and test the A/C system to ensure proper function.

Cost to Fix P0533 2014 GMC Sierra

The cost of repairing a P0533 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $150 to $300 for parts and labor. Keep in mind that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to get quotes from multiple shops to find the best price. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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