![]() What Does it Mean For My Vehicle?Ī faulty PCM can be one of the most expensive car problems to fix. When the PCM detects that there’s an error with its own circuitry like a pcm processor fault, it returns the P0606 fault code. It also runs a self-check, to make sure the PCM itself is working correctly. Overall, it checks over 100 functions, including your automatic transmission, O2 sensors, and engine pressure. Every time you start the car, the PCM runs a series of checks to make sure everything is okay. Your PCM is the computer inside your car that monitors all the vital systems. The P0606 fault code means that there’s an error with your power control module (PCM). More than that, we’ll explain how to diagnose the problem, and how to go about fixing it. ![]() ![]() We’re going to demystify this error code. That’s as helpful as a sharp stick in the eye. So you own your own code reader, or you have a friend who’s a mechanic and you have the code read. You go to start your car, and the check engine light is on.
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