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Error Code P0384: What It Means & What To Do?

OBD Code P0384 - Glow Plug Control Module Control Circuit High

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The glow plugs are operated with a solid-state device which is known as glow plug controller. The temperature as well as the power consumption as both controlled between the engine control module as well as the glow plug controller with a wide range so that it can easily suit the engines preheating requirements. The glow plug module is controlled by the engine control module with a pulse-width modulated control circuit. According to the system voltage and temperature, the glow plug initial ON time would vary. If the temperatures are low, then it would cause longer ON times.


The OBD code P0384 can be defined as Glow Plug Control Module Control Circuit High.

Learn More About OBD Error Code P0384

This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The specifications on the definition, the troubleshooting steps as well as repairs can always vary from one vehicle make to another.

 

This can happen because of a lot of reasons and the mechanic should diagnose the specific cause for this code.

 

What causes this problem with the Glow Plug Control Module Control Circuit High?

 

  • Issues with the glow plug module or timer
  • The glow plug circuit electrical connectors might be loose, corroded, or shorted
  • The glow plug relay might have some defaults
  • There can be blown fuses
  • Loose, shorted, or open wiring in the glow plug heater circuit
  • Open or shorted glow plug harness

Replace/Repair These Parts To Fix OBD Code P0384

  1. Engine Control Module - Are you facing some faults in your Engine Control Module? Don’t worry and get them replaced or else P0384 code can turn up.
  2. Battery Cable Replacement Terminal - Engine Control Module is perfectly fine but still but having that trouble code P0384 flashing? In such a situation your Battery Cable Replacement Terminal might be faulty. Why don’t you think of getting that replaced?
  3. Engine Parts - Common cause behind this P0384 error code can be some fault in Engine Parts. So it will be a good decision to buy new diesel engine parts them now.
  4. Spark Plug - There can be some issues with the Spark Plug due to which you may see P0384 code appearing over and over again. Visit us to buy best quality ac delco spark plugs online.
  5. Fuel Delivery System Parts - The P0384 code can also arise due to some issues in Fuel System Parts. So it is advised to replace them as soon as possible.
  6. Glow Plug - P0384 code does not really end up spoiling your Spark Plug, but it might also accompany few Glow Plug issues. We have best glow plug harness with us.

Symptoms Of OBD Error Code P0384

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

 

Common Symptoms

 

  • Glow plug / wait to start indicator might stay illuminated longer than normal
  • Malfunction indicator lamp can start appearing
  • There can be hard to start condition of the car engine

How To Correct P0384 Glow Plug Control Module Control Circuit High

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

 

  • The defected glow plug should be restored
  • Repairing loose, shorted, or open wiring in the glow plug heater circuit
  • Replacing blown fuses, and searching for and repairing the underlying issue that a blown fuse can indicate
  • Repairing loose, corroded, or shorted glow plug circuit electrical connectors
  • Reinstate the faulty glow plug relay
  • Carefully repair or replace poor glow plug module or timer
  • The open or shorted glow plug harness should be replaced as per the need

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of malfunction indicator light, diesel glow plugs, glow plug light and many more. Now all your problems would vanish within no time.

Easy Diagnosis Of Engine Error OBD Code P0384

Here are some steps which you should follow in order to diagnose this fault code:

 

The P0384 code can be detected with an OBD-II scanner.

 

  • A technician should begin with a visual inspection of all the wiring and connectors related to the glow plug heater circuit. Any damaged elements should be replaced, reconnected, or repaired as necessary.
  • The codes should then be cleared up and perform a test drive, checking that the check engine light does not reappear
  • If the light does reappear, the mechanic can then move on to checking each of the individual glow plug connectors for the proper voltage and ground signals
  • As the mechanic moves through each potential repair to find the issue, they should be sure to clear the code from the PCM and retest the system after each step
  • This will ensure that they do not waste precious time or money repairing things when the issue has already been solved

 

Common Mistakes When Diagnosing The P0384 Code

 

  • There can be some issues in the glow plug due to which P0384 fault code is appearing, but it doesn’t mean that we should not check other important car parts
  • A common mistake of directly replacing the glow plug without actually finding the potential problem can be made by a lot of people

Other Diagnostic Codes Related To OBD Code P0384

P0383 - Glow Plug Control Module Control Circuit Low