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It is under the cowl cover that covers the body just under the windshield. Remove wiper arms and cowl panel to access. Remove the cowl panel grille. Disconnect the 3 PCM electrical connectors.
Re: 2005 Ford Five Hundred computer control module location? The code is on the computer module under the dash on the drivers side. Look for a small black box. You will probably need a mirror to see the 5 digit code on the back of the box.
Where is the computer module located in a 2006 Ford Five Hundred 4-door sedan? It is under the cowl cover that covers the body just under the windshield. Remove wiper arms and cowl panel to access.
A power-train control module, abbreviated PCM, is an automotive component, a control unit, used on motor vehicles. It is generally a combined controller consisting of the engine control unit (ECU) and the transmission control unit (TCU). The PCM commonly controls more than 100 factors in a car or truck.
Doing your own flash reprogramming is not without risk. Any number of things can go wrong during the installation process which may result in an incomplete update or a frozen PCM. The worst case is that you can’t recover the PCM and have to replace it. Out advice is to leave PCM updates to a knowledgeable professional.
Reprogramming a PCM requires a J2534 Pass Thru device. There are a dozen or more on the market, and some scan tools have pass thru capabilities too. To reprogram a PCM, the tool must comply with SAE Standard J2534-1. You can also use a J2534-2 pass thru tool that can reprogram other control modules as well as the PCM.
On the extreme low end, an ECU flashing could cost around $300, but it can go as high as $3,000.
PERFORMANCE REPROGRAMMING A PCM Reprogramming is usually required after installing an aftermarket performance cam, bigger cylinder heads, a different intake manifold or fuel induction system to compensate for changes in airflow.