Can a check engine light be a PCM?
The light could be for anything related to the powertrain. Just keep in mind that the problem is more likely with the sensor, wiring, or just about anything else. If your vehicle has a check engine light, rule out every other possible cause before jumping to the PCM.
What are the symptoms of a bad PCM?
Here is a more detailed list of the six most common symptoms of a faulty PCM below with that noted caveat. The first sign that your PCM is having issues is likely going to be a check engine light. The light could be for anything related to the powertrain.
What does the PCM do on an engine?
The PCM is responsible for ensuring that the crankshaft and camshaft is positioned correctly so your engine will turn over. The PCM is also designed to control both ignition timing and spark. Problems with the PCM often result in the vehicle not running at all.
How to reset PCM and check engine light in Dodge Ram?
The reset procedure in your Dodge Ram is as easy as they come. First, park your truck and turn it off. Pull the hood lever under the driver’s side dash, and then pull the safety catch on the front of the hood to open it. Find the power distribution center (PDC); it will be a black box near the battery. Unlatch and open the cover of the PDC.
The light could be for anything related to the powertrain. Just keep in mind that the problem is more likely with the sensor, wiring, or just about anything else. If your vehicle has a check engine light, rule out every other possible cause before jumping to the PCM.
What does the PCM do in an engine?
The PCM is the brain of the power delivery unit in your engine. It controls various features, including ignition timing, fuel delivery, emissions, turbo boost pressure, idle speed, throttle control, and so much more.
Can a bad PCM cause a car not to start?
A bad PCM can cause the vehicle to not have any engine management control. Without any control, the engine won’t be able to start at all. The engine might still be able to crank, which shows that the engine is working fine, but the computer is not sending the correct signals to start the engine.
Here is a more detailed list of the six most common symptoms of a faulty PCM below with that noted caveat. The first sign that your PCM is having issues is likely going to be a check engine light. The light could be for anything related to the powertrain.