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OBD II Fault Code

  • OBD II P037E

    OBD-II Code Engine may not start is defined as a Glow Plug Sense Circuit Low

    Diesel engines use Glow Plugs to heat up the combustion chambers to enable a quicker cold start. If one or more glow plugs is not working properly, the engine control module (PCM) will set code P037E.

    Engine may not start Symptoms

    • Engine may not start
    • Hard engine start

    Common Problems That Trigger the P037E Code

    • Glow plug control module failure
    • Glow plug failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

    Common Repairs Needed for the P037E Code

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