Our automotive experts have put together the following information about the P2525 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2525 code.

OBD II Fault Code

  • OBD II P2525

    OBD-II Code Climate control systems will not work is defined as a Vacuum Reservoir Pressure Sensor Circuit

    Diesel vehicles have a separate vacuum pump an reservoir because they cannot utilize vacuum from the engine the way a gasoline vehicles can. There is a separate sensor on this reservoir to tell the engine control module (PCM) when to turn the vacuum pump on an off. If the PCM detects an incorrect signal from this sensor, it will set code P2525.

    Climate control systems will not work Symptoms

    • Climate control systems will not work

    Common Problems That Trigger the P2525 Code

    • Powertrain Control Module (PCM) failure
    • Vacuum reservoir pressure sensor failure
    • Wiring issue
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