Ok folks this is my problem and my search for a plan or fix.
Everytime I drive by a high powered Microwave tower, television station transmission tower, or during periods ofextreme solar dust storms, or days of high sunspot activity or Jupiter aligns with Mars.......... my 2007 Jeep Grand Cherokee SRT8 Powertrain Control module takes a fit and I have a runaway engine.
This could and can be a very serious safety problem, and because I think this issue needs my personal attention I am determined to get to the bottom of it.
Some of you may just say take it to the dealer....... well I could but because there are laws to protect me to work on my own vehicle I choose to do it my way.
Some of the things you will see here are not what some people want you too (you can figure out who for yourselves)
I have tried to contact some people from other Forums about my plans but no one who really has the inside know how, have not PM'ed me back, so on this board I will post and continue.
Ok with that all out of the way here's the plan.
I will build a fully complimented vehicle wiring harness based off my 2007 GCSRT8 model with most all of the nodes laid out and connected. I will then add 12 volts regulated power and using a laptop connected to a new Starmobile then with another PC running Vehicle Spy 3 listen into the C can bus and copy the messages sent. Another PC running a Osciliscope program will monitor various nodes I have selected.
I will then try to corrupt the Can bus data using a Magnatron from Microwave oven. HAHAHAHA
Ok so this is the PCM that I will use, a generic unit purchased last week
This is the circut board underneath the cover with the Silicon removed.
Notice this large chip in the midde it is a Freescale (Motorola based) MPC
It's basically the brains behind the PCM routing can codes and sequincing all the variables.
As most of you folks that have changed out your PCM's there are only 3 connectors identified by Black/Black, Black/Orange and Black/Natural. The fouth location is blank (colored Geen) and that would be for the TCM part if this was a regular 5.7 WK model.
Some links to the various software, cables.
So here I start and end for today, if you folks have any suggestions please bring 'em on. This project may take a few months so hang in there (I gotta work too).
Till tomorrow, where you get to see the back of the PCM board and we start identifying the various sections of the board. (Microcontrollers, coil circuts etc,)