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P0534 Mazda Code - Air Conditioner Refrigerant Charge Loss

- Code Popularity: 3,524 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0534 Mazda?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • A/C system low or over charge with refrigerant
  • Faulty A/C refrigerant pressure sensor
  • Cooling fans in-operative
  • A/C refrigerant pressure sensor circuit open or shorted
  • A/C refrigerant pressure sensor circuit poor electrical connection
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How to Fix the DTC P0534 Mazda?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0534 Mazda code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

When is the Code Detected?

The ECM has detected that the AC compressor clutch cycle rate is high

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • A/C Inoperative
  • A/C Blows Warm

Code P0534 Mazda Description

The powertrain control module (ECM) monitors the high side refrigerant pressure via a A/C refrigerant pressure sensor. When the pressure is high the signal voltage is high. When the pressure is low the signal voltage is low. When pressure is high the ECM commands the cooling fans on. When pressure is too high or too low the PCM will not allow the A/C compressor clutch to engage.

OBDII Code P0534 Mazda - Air Conditioner Refrigerant Charge Loss - AutoCodes.com
P0534 Mazda Code - Air Conditioner Refrigerant Charge Loss

Need More Information on the Code?

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Code P0534 Mazda comments

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