In some cases the new PCM has to be "flashed" or reprogrammed to match the vehicle's needs.
usally all that needs to be done is the pcm needs reprogramed but a technition will need to do it.
Any programming that would need done requires a scan tool.
P0601 is PCM internal processor failure.The PCM needs replaced.P0601 is PCM internal processor failure.The PCM needs replaced.
Yes, some do.
Timing is done by the PCM. No manual timing can be done with out a new PCM
You can change the PCM yourself, however the PCM needs to be programmed by a dealership service tech.
The powertrain control module (PCM) requires three main steps for removal and replacement. The PCM for the 1999 Durango is located on the right front fender towards the engine bay. The ABS plastic cover needs to be snapped off. Next the wiring harness to the PCM needs to be removed. The PCM is secured to its frame mount by three bolts. Once these are removed the new PCM can be installed. It is advisable to clean up the housing and electronic connectors and housing before completing the install. The battery should be disconnected as always when working with electronics.
No, some are blank and need programmed by the dealer.
Timing can not be adjusted, is done by the PCM.
Back in 1970 all engine controls were done by mechanical means. The answer is no, there is no PCM on a 1970 VW Beetle.
It is possible that the alternator caused damage to the PCM. Best to have diagnostics done on the car to see if and where the problems are.
you cant adjust its done by the pcm