Ultimate Prowertrain Control Module thread and my problems. - Cherokee SRT8 Forum
WK1 Troubleshooting / Problems Discussion / Dealer Service If you are having some problems with your Jeep Grand Cherokee SRT8 and need assistance in troubleshooting and diagnosing the problem, this is the proper place to discuss it. Were you treated fairly or poorly at a dealer? Warranty issues? Let us know.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 550 (permalink) Old 05-22-2007, 07:18 PM Thread Starter
Lifetime Premium Member
 
Blown7's Avatar
 
Join Date: Apr 2007
Location: Woodstock, CT
Posts: 2,831
Thanks: 3
Thanked 101 Times in 64 Posts
Ultimate Prowertrain Control Module thread and my problems.

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.

http://www.freescale.com/webapp/sear...Controllers%2F


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.
http://intrepidcs.com/modules/CmodsD...s/ValueCAN.pdf

http://www.intrepidcs.com/catalog/index.php

http://www.intrepidsupport.com/

http://www.kvaser.com/index.htm

http://www.dontronics-shop.com/produ...1&cat=0&page=1

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,)

Jeff

The Dunning–Kruger effect is a cognitive bias in which unskilled people make poor decisions and reach erroneous conclusions, but their incompetence denies them the metacognitive ability to realize their mistakes.

"I'm a greedy old man. Life's been good to me, and I want some more of it."
John Wayne
Blown7 is offline  
Sponsored Links
Advertisement
 
post #2 of 550 (permalink) Old 05-22-2007, 07:56 PM
Elite Contributing Member
 
HoustonSRT-8's Avatar
 
Join Date: Dec 2006
Location: Cypress, TX
Posts: 5,291
Thanks: 52
Thanked 449 Times in 301 Posts
Garage
You're nuts.

Steve
'15 Black over Red Vapor WK2 SRT-8 (It's got a trunk mat!)
SOLD '06 Silver WK1 SRT-8 (Borla Type-S, Predator, K&N, Eibachs, S6M Shocks, JBA A-arms, 275/315)
'06 White E55 (STAR dropped, iForged Imolas, Eurocharge tune, HE - 483whp)
'94 Black Mustang GT (cam bearings spun/scored...new HCI 331 stroker coming soon)

PITTZ said I am special
HoustonSRT-8 is offline  
post #3 of 550 (permalink) Old 05-22-2007, 08:07 PM
Senior Member
 
Join Date: Sep 2006
Location: Metro St Louis MO
Posts: 298
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to phenwick
yeah, I was following ya up until this....

"I will then try to corrupt the Can bus data using a Magnatron from Microwave oven. HAHAHAHA"

Dave
07 Black GC SRT8 Volant CAI; Borla S Type Catback; DashHawk
06 Black Charger SRT8 MOPAR CAI; Corsa Catback; Remote Start; Rear Tint
phenwick is offline  
post #4 of 550 (permalink) Old 05-22-2007, 08:24 PM
Elite Contributing Member
 
Razorecko's Avatar
 
Join Date: Oct 2006
Posts: 3,713
Thanks: 0
Thanked 1 Time in 1 Post
I'd keep this secret, you know DCX will come knocking on your door sometime by 7am tomorrow
Razorecko is offline  
post #5 of 550 (permalink) Old 05-22-2007, 08:29 PM
Senior Member
 
SilverSRT8's Avatar
 
Join Date: Jul 2006
Location: Fort Collins, CO
Posts: 411
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by Razorecko
I'd keep this secret, you know DCX will come knocking on your door sometime by 7am tomorrow
I understood every word you said in that post...................

SilverSRT8 is offline  
post #6 of 550 (permalink) Old 05-22-2007, 08:51 PM
Major Contributing Member
 
FastSRT8GC's Avatar
 
Join Date: Feb 2007
Location: TAMPA, FL
Posts: 1,429
Thanks: 0
Thanked 0 Times in 0 Posts
If you can crack this B1TCH you will be loaded. It needs to be dyno programmable.

And who cares about DCX they were sold! Work your magic as we sit chomping at the bit!!!

FASTmade Ediff & TCM switches, 170 Stant, B&B Catback, Dynamic Heads, FRE Hellfire Cam, Kooks LT's
ARIZONA SPEED & MARINE Vortech SuperCharger Kit, ASM Phenolic Spacers, UniChip,
B&G StageII, UniChip, Kenne Bell Boost a Pump, Walsh Racing Heat Exchanger.

MOD DIRECIONS
FastSRT8GC is offline  
post #7 of 550 (permalink) Old 05-22-2007, 08:52 PM
Member
 
Join Date: Mar 2007
Posts: 91
Thanks: 0
Thanked 0 Times in 0 Posts
Jeff ,keep up the great R&D

b
bruso is offline  
post #8 of 550 (permalink) Old 05-22-2007, 09:03 PM
Member
 
D-man's Avatar
 
Join Date: May 2007
Location: The O.C.
Posts: 97
Thanks: 0
Thanked 0 Times in 0 Posts
Friggin Hilarious BUT.... I see the seriousness in you post.

(Why do I get the feeling that the next picture we see will be that of an un-soldered PC board )

Kudos on the task at hand............

D-man (Objects in mirror are about to disappear...)

- '06 Black GC SRT-8 (Optioned out)
- '99 Black C5 (Many bolt-ons)
- '04 Black Super-Comp, Don-Davis C5 (1135FHP, Single Carb, No Spray -7.95"Yes.. 1/4mile"/174.50mph)
- Rossion Q1 -??????? Hmmmmm
- Bills
D-man is offline  
post #9 of 550 (permalink) Old 05-22-2007, 10:58 PM
Elite Contributing Member
 
OurZoo's Avatar
 
Join Date: Dec 2006
Location: Phoenix
Posts: 5,086
Thanks: 0
Thanked 0 Times in 0 Posts
Good luck Blown!
OurZoo is offline  
post #10 of 550 (permalink) Old 05-23-2007, 03:35 AM Thread Starter
Lifetime Premium Member
 
Blown7's Avatar
 
Join Date: Apr 2007
Location: Woodstock, CT
Posts: 2,831
Thanks: 3
Thanked 101 Times in 64 Posts
Smile

Quote:
Originally Posted by FastSRT8GC
If you can crack this B1TCH you will be loaded. It needs to be dyno programmable.

And who cares about DCX they were sold! Work your magic as we sit chomping at the bit!!!
Oh I think it will be cracked, however unlike other attempts by others in the past all information will be posted here and not lost, kind of like a open source post. I'm not doing this for money I could care less, my business repairing and altering aircraft is very good.

Like I said Solar Flare Radiation is affecting my PCM and I'm just trying to fix it, (thats my story and I'm sticking to it.

Jeff
Blown7 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Cherokee SRT8 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome