Engine-CodesChrysler – P2518 Chrysler

P2518 Chrysler Code - Air Condition Refrigerant Pressure Sensor 'B' Circuit High

Quick Answer

The P2518 Chrysler code indicates that there is a problem with the Air Condition Refrigerant Pressure Sensor 'B' Circuit being too high. Common causes include Faulty Air Condition Refrigerant Pressure Sensor 'B', Refrigerant leak causing pressure to increase, Electrical issues such as a short or open circuit in the wiring. 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
P2518 Chrysler indicates Air Condition Refrigerant Pressure Sensor 'B' Circuit High.
Common causes
Common causes include Faulty Air Condition Refrigerant Pressure Sensor 'B', Refrigerant leak causing pressure to increase, Electrical issues such as a short or open circuit in the wiring.
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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P2518 Chrysler Description

The P2518 Chrysler code indicates that there is a problem with the Air Condition Refrigerant Pressure Sensor 'B' Circuit being too high. This sensor is responsible for monitoring the pressure of the refrigerant in the air conditioning system. When the pressure is too high, it can lead to issues with the overall performance of the AC system.

OBDII Code P2518 Chrysler - Air Condition Refrigerant Pressure Sensor 'B' Circuit High
P2518 Chrysler Code - Air Condition Refrigerant Pressure Sensor 'B' Circuit High

Common Causes of P2518 Chrysler

  1. Faulty Air Condition Refrigerant Pressure Sensor 'B'
  2. Refrigerant leak causing pressure to increase
  3. Electrical issues such as a short or open circuit in the wiring
  4. Debris or blockages in the AC system causing pressure to build up
  5. Issues with the AC compressor

Symptoms of P2518 Chrysler

  1. Check engine light illuminated
  2. Reduced cooling capacity of the air conditioning system
  3. Unusual noises coming from the AC system
  4. Inconsistent or fluctuating air temperature from the vents
  5. AC system may not turn on at all

How to Fix P2518 Chrysler

  1. Use an OBD-II scanner to confirm the P2518 code and diagnose the specific issue
  2. Inspect the Air Condition Refrigerant Pressure Sensor 'B' and its wiring for any visible damage or corrosion
  3. Check the refrigerant levels and system for leaks, repair any leaks found, and recharge the system if necessary
  4. Test the AC system to ensure the pressure is within the specified range
  5. Clear the code and test drive the vehicle to verify that the issue has been resolved

Cost to Fix P2518 Chrysler

The cost to repair a P2518 Chrysler code can vary depending on the specific cause of the issue. On average, you can expect to pay between $150 and $400 for parts and labor. However, the total cost can be higher if additional components need to be replaced or if there are multiple issues present. It's important to note that diagnosis time and labor rates can vary depending on the location and the specific vehicle being serviced. It's recommended to get a detailed estimate from a trusted auto repair shop before proceeding with the repairs.

Tech Notes for P2518 Chrysler

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 voltage at the A/C low side pressure sensor signal circuit.

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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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