Posts Tagged: PCM

Where to get an ECM replacement?

Can You Swap in a Used PCM? Experts Weigh In If you own a late-model GM vehicle with a bad ECM or PCM, the short answer is NO; you cannot swap in a used PCM, ECM, or any other module from a junkyard. Even if the part number on the used PCM, ECM, or module is exactly the same, that doesn’t mean it’s programmed properly. On most late-model cars and trucks, the PCM, ECM, or module MUST be programmed to your vehicle’s VIN code and build code. Don’t believe me? … Read More