![]() There are several ways to program a Ford PCM using the OE tool. So how is this done? There are many programming devices on the market, but what I’ll use here is Ford’s IDS. This can include:Ĭhanges to alternator output for PCM-controlled alternators Įven things like data bus communications and air bag deployment issues. Changing that program changes that module’s personality. The software within the module provides it with its instructions. For some models, every module on it has to be programmed during replacement - even the radio. However, almost every module on a vehicle today is programmable. Typically, when someone talks about reprogramming a module, it’s the PCM they’re talking about. Regardless of why reprogramming is getting to be so common, it’s clear that the average shop needs to be able to do it. Could it be that it’s a side effect of more complex software? Sloppy program writing? Or is it just because software is a cheaper part to warranty than hard parts? It could be a combination of all three reasons and others not mentioned. ![]() ![]() Honestly, I don’t recall PCM replacement being as popular of a fix in years past as what PCM reprogramming is today. ![]()
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