Our automotive experts have put together the following information about the P0598 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 P0598 code.

OBD II Fault Code

  • OBD II P0598

    OBD-II Code Cooling fans may stay on all the time is defined as a Thermostat Heater Control Circuit Low

    Some newer engines utilize thermostats that are electronically controlled by the engine control module (PCM). If the PCM detects an incorrect signal from thermostat, the PCM will set code P0598.

    Cooling fans may stay on all the time Symptoms

    • Cooling fans may stay on all the time

    Common Problems That Trigger the P0598 Code

    • Powertrain Control Module (PCM) failure
    • Thermostat failure
    • Wiring issue

    Common Repairs Needed for the P0598 Code

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