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P2613 OBD-II Trouble Code: A/C Refrigerant Distribution Valve Control Circuit High

check engine light

P2613 code definition

This is the generic trouble code for A/C Refrigerant Distribution Valve Control Circuit High, indicating a problem with the signal being sent to the PCM from the distribution valve circuit.

What the P2613 code means

When this DTC sets, it means that the PCM (powertrain control module) has received a message from the a/c refrigerant distribution valve control circuit that does not meet expected voltage parameters. The refrigerant distribution valve acts like a mechanical expansion valve in order to regulate a/c refrigerant activity, however it is controlled by the PCM.

What causes the P2613 code?

This DTC is most often triggered by one of the following conditions:

  • A faulty a/c refrigerant distribution valve or controller (the most common cause)
  • A short or open in the controller wiring or connectors
  • Low refrigerant level
  • An a/c system which has been overcharged

What are the symptoms of the P2613 code?

The most obvious symptom of this fault code is that the air conditioning won’t work. The air conditioning “ON” light (typically integrated into the a/c switch) may begin flashing, and the evaporator case may become frosty and drip into the vehicle’s floor.

How does a mechanic diagnose the P2613 code?

Your technician may perform the following steps to find the source of this fault:

  • Hook an OBD-II scanner up to the vehicle’s computer and record the freeze frame data, including any other codes and the order in which they occurred
  • Clear all codes and road test the vehicle to see if they return
  • Diagnose and address any other faults which occurred before the a/c problem
  • Visually inspect any related wiring and connectors
  • Check the refrigerant levels
  • Check for refrigerant leaks

Common mistakes when diagnosing the P2613 code

Some technicians find that the a/c system has been overfilled with refrigerant, which can cause serious damage to the entire system. This is often the result of vehicle owners using single-hose kits available in auto parts stores, without having the proper equipment to monitor refrigerant levels. It may also be tempting to replace the PCM when wiring or bad connections are at fault.

How serious is the P2613 code?

This fault code is certainly not as serious as other types that can impair the vehicle’s drivability, so it isn’t necessary to worry about fallout damage to vital vehicle systems. However, if you want to have air conditioning that functions, you will want to have the problem looked at and addressed at your earliest convenience.

What repairs can fix the P2613 code?

Your technician may perform the following to rectify the condition:

  • Repairing faulty connections or wiring
  • Adding or removing refrigerant
  • Repairing or replacing the a/c refrigerant distribution valve or controller
  • Replacing the PCM if necessary (the refrigerant distribution controller is often integrated into the PCM)

Additional comments for consideration regarding the P2613 code

One of the most important things to know when dealing with any refrigerant fault is that only those who are certified to work with refrigerant should perform these kinds of repairs. Refrigerants must be handled and disposed of in specific ways, according to federal mandates, so you’ll want to consult a professional in order to rectify the situation properly.

While it’s tempting to use quick fix air conditioning kits available in stores in order to restore your a/c’s functionality, these are not a good solution in most cases. They are not equipped with the gauges necessary to monitor refrigerant levels, and if there is another underlying problem such as a faulty refrigerant distribution control circuit problem, these kits will not fix the root of the DTC. Use of such products may actually lead to catastrophic failure inside your air conditioning system.

Need help with a P2613 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
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