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I am assuming that you mean the starter will not engage and the engine will not crank at all. The PCM would not be your cause. The PCM controls stuff like fuel injectors and spark. It has nothing to do with starter functions. There are only a few componets in the sarter system. The battery, the starter, the ignition switch, the park/neutral switch on the transmission, the battery cables, and all of the wiring. There is also the possibilty that someone has installed a security system, and there is something wrong with that. I would make sure that the battery load tests good. Since you have already replaced the starter, you know how it hooks up, so crawl under the vehicle, and use a test light to make sure that you have power to the battery cable. Then have someone hold the key in the start position, while you check the trigger wire for power. If there is no power on the battery cable, you need to track it down, possibly a bad cable or terminal. If there is no power on the trigger wire you need to trace that out, possibly a bad park/neutral switch, bad ig switch, or bad wiring. If you have power to both, then you could have gotten a bad starter, or there may be a bad ground from the battery. Any suspected wiring area can be tested using a voltage drop method. If you have a test meter or light, you can attach one end to one side of the suspected fault, and attach the other end to the other side of the fault (In parallel with the suspect wiring) and activate the circuit. If there is a problem there, the voltage will take the path of least resistance around the bad spot and through your tester, and either light the light brightly, or read high on a volt meter. You may find an open circuit this way. Of course, if the starter tries to engage and it cant turn the engine over, then a locked up motor or flywheel problem is also a possibilty.

AnswerFirst thig to check the nuteral safety switch on the trasmission. If you do not want to replase(part is expencive) you can wire in a starter button. Also it could be the resister coil in thr sterring colom (If equip)
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โˆ™ 2011-09-12 20:59:54
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Q: If a 1993 Dodge Caravan will not turn over but you replaced the starter could it be the PCM?
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