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Engine-Codes – Generic – P2517

P2517 Code - Air Condition Refrigerant Pressure Sensor 'B' Circuit Low

Quick Answer

The diagnostic trouble code P2517 indicates a problem with the Air Condition Refrigerant Pressure Sensor 'B' Circuit being too low. Common causes include Faulty air condition refrigerant pressure sensor, Refrigerant leak in the system, Malfunctioning air conditioning compressor. 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
P2517 indicates Air Condition Refrigerant Pressure Sensor 'B' Circuit Low.
Common causes
Common causes include Faulty air condition refrigerant pressure sensor, Refrigerant leak in the system, Malfunctioning air conditioning compressor.
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 P2517 Description

The diagnostic trouble code P2517 indicates a problem with the Air Condition Refrigerant Pressure Sensor 'B' Circuit being too low. This sensor is responsible for monitoring the pressure of the refrigerant in the air conditioning system. When the pressure is too low, it can affect the performance of the air conditioning system in the vehicle.

OBDII Code P2517 - Air Condition Refrigerant Pressure Sensor 'B' Circuit Low
P2517 Code - Air Condition Refrigerant Pressure Sensor 'B' Circuit Low

Common Causes of P2517

  1. Faulty air condition refrigerant pressure sensor.
  2. Refrigerant leak in the system.
  3. Malfunctioning air conditioning compressor.
  4. Electrical issues in the circuit connected to the sensor.
  5. Low refrigerant levels in the system.

Symptoms of P2517

  1. Reduced cooling performance from the air conditioning system.
  2. Air conditioning system may intermittently stop working.
  3. Unusual noises coming from the air conditioning compressor.
  4. Check engine light may illuminate on the dashboard.
  5. Increased fuel consumption due to the air conditioning system working harder.

How to Fix P2517

  1. Begin by diagnosing the exact cause of the low refrigerant pressure, using a scan tool to read the specific codes and test the sensor.
  2. Inspect the air conditioning system for any visible leaks or damage that may be causing the low pressure.
  3. Replace the faulty refrigerant pressure sensor if necessary.
  4. Repair any leaks in the system and recharge the refrigerant to the correct levels.
  5. Test the air conditioning system to ensure it is functioning properly after the repairs have been completed.

Cost to Fix P2517

The cost of repairing a low refrigerant pressure sensor can vary depending on the specific cause of the issue and the make and model of the vehicle. On average, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. It is advisable to consult with a professional mechanic to get an accurate estimate based on your vehicle's specific needs and location. Keep in mind that rates for diagnosis and labor can vary between different auto repair shops.

What does this mean?

Tech Notes for P2517

Do not just add more refrigerant, use an A/C machine to evacuate the refrigerant and charge the correct amount.

When is the Code Detected?

The Powertrain Control Module (PCM) sets the code when detects a short to ground at the A/C low side pressure sensor signal circuit.

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Code P2517 Information for Specific Makes

  • P2517 Buick — Air Condition Refrigerant Pressure Sensor 'B' Circuit Low
  • P2517 Cadillac — Air Condition Refrigerant Pressure Sensor 'B' Circuit Low
  • P2517 Chevrolet — Air Condition Refrigerant Pressure Sensor 'B' Circuit Low
  • P2517 Chrysler — Air Condition Refrigerant Pressure Sensor 'B' Circuit Low
  • P2517 Dodge — Air Condition Refrigerant Pressure Sensor 'B' Circuit Low
  • P2517 Ford — Air Condition Refrigerant Pressure Sensor 'B' Circuit Low
  • P2517 GMC — Air Condition Refrigerant Pressure Sensor 'B' Circuit Low
  • P2517 Mercedes-Benz — Air Condition Refrigerant Pressure Sensor 'B' Circuit Low
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.

Frequently Asked Questions about P2517 Code

1. What are the common symptoms of OBDII code P2517?

- Common symptoms include air conditioning system malfunction, weak or warm air coming from the vents, and the AC compressor not engaging.

2. What could cause the Air Condition Refrigerant Pressure Sensor 'B' Circuit Low code to trigger?

- Possible causes include a faulty refrigerant pressure sensor, damaged wiring or connectors in the sensor circuit, low refrigerant level, or a problem with the AC compressor.

3. How can I diagnose the cause of OBDII code P2517?

- You can diagnose the issue by checking the refrigerant pressure sensor for proper operation, inspecting the sensor's wiring and connectors for damage, testing the refrigerant level, and examining the AC compressor for any issues.

4. Can a low refrigerant level trigger code P2517?

- Yes, a low refrigerant level can cause the refrigerant pressure sensor to detect low pressure, which may trigger the P2517 code.

5. What are the repair options for OBDII code P2517?

- Repair options may include replacing the faulty refrigerant pressure sensor, repairing any damaged wiring or connectors, refilling the refrigerant to the correct level, or addressing any AC compressor issues.

6. Is it safe to continue driving with OBDII code P2517 present?

- It is not recommended to continue driving with this code active, as it can lead to further damage to the air conditioning system and potentially affect the vehicle's overall performance.

7. Can I reset OBDII code P2517 without addressing the underlying issue?

- While you can clear the code with an OBDII scanner, it is important to address the root cause of the problem to prevent the code from reoccurring.

8. How much does it typically cost to repair OBDII code P2517?

- The cost of repairs can vary depending on the specific issue causing the code, but it may range from a relatively inexpensive sensor replacement to a more costly compressor repair.

9. Can a DIY enthusiast fix OBDII code P2517 at home?

- Some aspects of diagnosing and repairing this code may be within reach of a DIY enthusiast, such as checking sensor connections and refrigerant levels. However, more complex repairs may require professional assistance.

10. Will fixing OBDII code P2517 improve my vehicle's fuel efficiency?

- Addressing issues related to the air conditioning system, as indicated by this code, can help improve overall vehicle performance and potentially contribute to better fuel efficiency.

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