P0384 - OBD II Trouble Code

January 31, 2017

Our automotive experts have put together the following information about the P0384 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 P0384 code.

OBD II Fault Code

  • OBD II P0384

OBD-II Code Engine may not start is defined as a Glow Plug Control Module Control Circuit High

The Glow Plug Module controls the Glow Plugs. Diesel engines use Glow Plugs to heat up the combustion chambers to enable a quicker cold start. When the engine control module (PCM) detects a problem with the Glow Plug Control Module, it will set P0384.

Engine may not start Symptoms

  • Engine may not start
  • Hard engine start

Common Problems That Trigger the P0384 Code

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

Common Repairs Needed for the P0384 Code

About the Author

Brad Kava is an automotive expert at RepairPal, the leading online source of auto repair resources and estimates. With many ASE Master certified mechanics on staff who have decades of experience, RepairPal knows all the fine points of car repair.

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