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OBD II Fault Code

  • OBD II P068D

    OBD-II Code Hard or no start in cold weather is defined as a Cylinder 7 Glow Plug Control Circuit High

    The Glow Plug is used on diesel engines to preheat the cylinder before the engine is started. If the engine control module (PCM) detects the glow plug for cylinder seven is not operating properly, the PCM will set code P068D.

    Hard or no start in cold weather Symptoms

    • Engine may not start
    • Hard or no start in cold weather

    Common Problems That Trigger the P068D Code

    • Glow plug failure
    • Glow plug wiring harness failure
    • Powertrain Control Module (PCM) failure

    Common Repairs Needed for the P068D Code

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