Well, a number of things possibly. There are numerous sensors that correspond with the PCM which together keep the engine running at it's peak. If the PCM goes bad, it could effect just one sensor and make your car run bad, (stalling, overheating, taking long to start, never ending check engine light, etc), or the whole thing can be blown and your car won't run at all. Most of all, a bad PCM in any case will probably keep your car from passing emissions, because all the sensors connected to it are used to control engine performance and effectively reduce your car's emissions. Your best bet if you are experiencing intermittent issues like stalling, or rough acceleration, and have a check engine light that wont go out after replacing the component it calls for, it very well could be a short in the wiring to the PCM, or the PCM itself. Ask around for a trust worthy auto electric technician and have your Chrysler checked over.
Yes
there are a lot of symptoms of a bad PCM.stallingoverheating (failure to turn on radiator fans)dead battery (failure to turn on alternator)no start (failure to engage ignition)the PCM controls many functions in engine management. usually when the vehicle is warm you will notice problems, because of the location it is poorly protected from heat and/or elements. the are several site online where you an purchase PCMs preprogrammed and flash updated for your vehicle. oh yeah, one more thing, Chrysler sebrings like most Chrysler vans are notorious for PCM failure.
P1389, no asd relay voltage at the PCM. Causes include blown fuse, bad relay, broken wires, bad PCM.
Yes, it is internal to the PCM.
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Idle speed is PCM controlled and is not adjustable.Idle speed is PCM controlled and is not adjustable.
bad pcm, bad thermostat, bad starter, all sorts of problems it could be. what are the symptoms, without them, you can be helped.
where is the pcm module located on my 1997 Chevy truck
Not used. It is driven by the PCM
Yes. The PCM (powertrain control module) is the same as the engine computer.
The PCM is located in the actual engine bay on a 2000 Chrysler Sebring. It is mounted vertically next to the battery tray.
The PCM, engine computer, controls the fuel system.