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P04D3 - How To Repair: Meaning, Causes, Symptoms, Fixes

P04D3 - OBD2 Trouble Code P04D3 Exhaust Brake Input Circuit

P04D3 Code Definition

P04D3 Exhaust Brake Input Circuit

What Does the Engine Code P04D3 Mean?

Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "0" in the second position means that this is a generic OBD-II (OBD2) DTC. "4" in the third character position in a DTC indicates that the auxiliary emission controls system is experiencing a malfunction. The last two characters "D3" is DTC number. OBD2 Diagnostic Trouble Code P04D3 means that Exhaust Brake Input Circuit has been detected.

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How Serious Is the Code P04D3?

This issue is critical and can lead to damages in your car. Please clear it first, drive your car for a couple of days. If the issue reappears, Carly recommends to fix your car to resolve this issue.

*Every car is unique. The Carly Features that your car supports depend on the model, build year, hardware, and software in the car. Plug the scanner in the OBD2 port, connect to the app, run your first diagnostics, and check which features are available for your car. Also, keep in mind that any information provided on this website is for informational purposes only and should be used at your own risk. Mycarly.com is not responsible for any errors or omissions, or for the results stemming from the use of this information.

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