What does the p code mean on a check engine light?
What does the p code mean on a check engine light? Step 2: Determine the meaning of the letter. There are four possible letters that can be displayed in the first section. The letter “P” indicates powertrain-related codes such as those involving the engine or the transmission and their sensors. Typically, “P” codes are the only ones that will illuminate the Check Engine Light. What does DTC p0700 mean on a new car? Newer vehicles, using the CAN (Controller Area Network) protocol, may have the following communications DTCs set, which would indicate a fault in proper communication between the ECM,...