Originally Posted by TomBrady
So here is my question: I refuse to be a parts swapper! Is there a "LADDER LOGIC DIAGRAM" that show the "Sequence of Events" available. I need a Point-to-Point diagram, not a wiring diagram. I need to know what conditions need to be satisfied before the next sequence can take place!
Unfortunately Chrsler never produced logic diagrams. The closest thing to it is their Diagnostics Procedures Manuals, but they too just move from step to step in a diagnostic procedure, and most often require the use of their DRBIII diagnostic tool in the process.
Some Cherokee DIY mechanics refer to wiring diagrams and the descriptions of how a system works in the specific Factory Service Manual to troubleshoot a problem. Other DIY mechanics just ask a question on a Jeep forum and get guidance from experienced members of the forum. And, unfortunately (again) some of that guidance is to shotgun a part.
Can I assume you have a genuine Chrysler Cherokee (XJ) Factory Service Manual for the 1996 XJ? If so, you'll have to refer to the diagrams and system descriptions and make determinations as to which is the next logcal step in the troubleshooting process.
I don't have a copy of the '96 FSM so it will be difficult for me to assist you.
I just downloaded a pdf file of the '96 FSM from Pacific Coast Manuals for $7.95 and it turned out to be a '97 FSM. Arse holes. I've contacted them to see if they can recitify the problem. If not I'll put a stop payment on them through PayPal.
My '97 and '99 FSM diagrams will be different than the '96 just based upon a photo of the PDC in a '96 vs. the PDC layout of a '99. The relays in the '96 look like Type 2 or Type 3 relays and my '99 has Type 1 relays (primarily), so it may only cause confusion if I attempt to help you along...even if the ASD circuit is wired the same.
Specifically "then plugged back in with an external jumper rigged to the load side ot the relay contact - i am reading an (-) 11.56 VDC. It read (+) 11.56 VDC when the relay was out."
I have no idea what pin sockets on the ASD relay you were reading or under what conditions you were getting these readings (Key ON/OFF?).