A 1997 Wrangler doesn't have a BCM. (body control module) It does have a PCM (powertrain control module) which is behind the battery.
pcm or crank sencer
Yes, the Pcm memory will be cleared with each disconnect.
the ignition control module is operated by the pcm,the pcm tells the ignition control module when to energize the coils to enable spark
The passenger side right behind the battery on the firewall. cant miss it
How would I know if The PCM is not working, fuel pump and the ignition is not starting and theres no spark to the spark plug or to the distributor it has no spark to the spark plug or to the distributor it has no juice when you try to start the car. Fuse box is working on both ends. I checked the coil and its working. My car is a 1997 Doge Neon. Start by having it checked for trouble codes. If the PCM is not working; the easiest way to check for a PCM problem is by turning the ignition (the key) from position I to II, do not start the engine. The CEL (check engine light, yellow in colour) should light for 3 seconds and then turn off. If it does not turn on, then the PCM is not working correctly or there is no power going to the PCM. Then I would start by checking the PCM fuse and checking if there is power going to the PCM. Earlier model neons have PCM problems. Only a retarded manufacture puts the PCM under the hood exposed to the extremes of the elements. Honda is better, put it inside the car were is belongs!
It is there to detect detonation or ( knocking ) and the information is used to adjust timing by the pcm.
The PCM is responsible for controlling all of the engine's functions. ie: spark, fuel, cruise, alternator, a/c ....
It is used by the PCM to determines fuel and spark timing
It means the battery has been disconnected from the pcm with in the last 50 key on cycles
AnswerIt reads the position and/or speed of an engine as it is rotating. When crankshaft is turning, the sensor will provide a signal to the PCM. The PCM will then allow the engine to start by providing spark and fuel.
replaced ignition coil pack, PCM and spark plugs. No signal comes from the computer to fire plugs 2 and 3, but 1 and 4 are firing nicely. The van WILL NOT start, but -- at times -- it tries. Please help. There is possibility that I bought a faulty PCM with the same problem that I had from the original, but I dunno.
Finally solved the problem .... PCM failed and destroyed the coils ... also new coils so whentrying a known good PCM had no spark
Spark and fuel are controlled by the PCM (Power Control Module), the PCM grounds the ASD relay (Auto Shut Down) which in turns sends power to the ignition coil and to the fuel injectors, the injectors open upon receiving a ground signal from the PCM as well as the ignition coil fires a spark when it gets the ground signal from the PCM, now none of this will happen if the PCM does not get a signal from the CKPS (crank position sensor) this sensor tells the computer the engine is spinning as well as where is the piston located at that instant of time in order for the PCM to give the ground signal to the coil fuel injector or the ASD which gives the juice to those components.This sensor is located in the rear of the engine is a 3 wire plug and it sends its signal from the presence of windows in the flywheel.
if it's the same drive train i don't see why not. ie; same size engine and same transmission. Most likely no, they are too far apart in years.
Powertrain Control Module The computer on the passenger firewall, it controls all the sensors, meaning the crankcase, camshaft sensor and son on
The engine computer (pcm) controls the injector pulse. It looks at numerous sensors and switches to calculate pulse width
The PCM is the brains of the drivetrain. it tells the transmission when to shift, the spark plugs when to spark, how much fuel to inject, among many many other functions. if it has to do with making your wheels turn and is controlled by computer, the PCM does it. and in modern cars, pretty much everything is controlled by the computer.
the knock sensor monitors preignition,spark knock and sends signal to pcm,pcm responds by adjusting ignition timing and fuel timing until knock is gone.
absolutely! Cam sensors are to blame too, as are many other things...
PCM, powertrain conrol module.
depending on the type of distributer, it would be inside the distributer. might check the pcm if you have no spark.
it is on passanger side off inteior firewall behind and below glovebox
buy a pcm
Runs all the Fuel, Spark and air tables for the EFI system. If in an automatic car it will also shift the transmission for you.