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Our automotive experts have put together the following information about the P045D 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 P045D code.

OBD II Fault Code

  • OBD II P045D

    OBD-II Code Decreased engine performance is defined as a Exhaust Gas Recirculation "B" Control Circuit High

    EGR (Exhaust Gas Recirculation) systems are used to reduce the combustion temperature, thus reducing emissions. If the engine control module (PCM) detects the EGR is not operating as requested, it will set code P045D.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P045D Code

    • EGR valve failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

    Common Repairs Needed for the P045D Code

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