Certain DTCs are more likely to appear than others. Below is a list of common DTCs you may encounter and their corresponding malfunctions.

  • P0442: A small system leak in a vehicle’s evaporative emission control system. 
  • P0606: A malfunction in the power train control module (PCM), also known as the engine control module (ECM). 
  • P0101: A fault in the mass air flow (MAF) sensor or circuit.
  • P0110: A malfunction in the intake air temperature sensor circuit.
  • P0500: A vehicle speed sensor malfunction.
  • P0706: Fault in the transmission range sensor circuit range.

It is important to note that while DTC’s are useful in identifying a vehicle’s malfunction, they are not a way to decipher why the malfunction occurred. A vehicle needs to be further diagnosed by a mechanic to identify and address the cause of the issue.