Jeep Cherokee Guys: I have a Diagnostic Problem

[GilpinGuy]

The wife's '04 Grand 4.7L started running weird yesterday - weak power, engine light came on. I was driving by the way.

I got two codes:
First, the flashing "check engine light" code. It flashes 11 times, so that's supposed to mean a bad crank shaft position sensor or a bad cam shaft position sensor. I replaced both ($150!) and got no results. [Rant2]

I pulled the odometer code and it tells me "P 0700" which I have learned means "something's up with the transmission electronics". I also read in a few places that the "speed input/output sensors" are usually the culprit here with WJ Cherokees. Then I also read that you can test them with an Ohm meter. I did this and both sensors read 500 Ohms like they should, so I figure they're OK.

One guy mentioned that he had the same problems and he just replaced tranny oil and filters and he was good to go. I did this too - no joy.

Now the Heep won't budge an inch.

Anyone have the scan tool that can tell me what the "P 0700" really means before I throw more parts at this thing? Apparently, the code can mean many, many things and you need the scan tool to get the inside scoop. What a joke.

[Help][Help][Help][Help][Help]

[Fist_gonzo]

My buddy had the same code in his srt jeep, he said the 0700 code is a generic code for the transmission, the dealers reader could go more in depth. Came out to be a tranny solenoid out of whack. [Luck]

[GilpinGuy]

My buddy had the same code in his srt jeep, he said the 0700 code is a generic code for the transmission, the dealers reader could go more in depth. Came out to be a tranny solenoid out of whack. [Luck]

Thanks, but I was hoping someone could help me actually diagnose the code so I can tell exactly what the problem is with the "super secret diagnostic tool", since this code can be for a dozen of reasons. [Beer]

[BushMasterBoy]

He needs the DRBIII chrysler tool for transmission. Sorry , I don't have one!

http://www.jeepforum.com/forum/f310/drb-iii-diag-tool-1208942/


or this emulator software and cable

http://www.vehiclebox.com/index.php?option=com_virtuemart&page=shop.browse&category_id=9&Itemid=55&vmcchk=1&Itemid=55

[tmleadr03]

P0700 is nothing more then a genaric code for the engine control unit that says there are other codes going on in the transmission. That is it. You need a Chrysler capable scan tool to get the rest of the codes. Scan tool or nothing at this point.

Good luck. Hope someone has one they can drive over to you.

[Goodburbon]

thats not a cherokee

[mcantar18c]

It's just mad at you for referring to a non-XJ as a "Cherokee." It'll stop misbehaving if you apologize to it.

[rockhound]

its a jeep thing, [ROFL1]

[Goodburbon]

Well the thread calls for help from "jeep cherokee guys"

I am very much a "jeep cherokee guy".

Then in the first post I find out it's a "grand cherokee" which is not a "cherokee". It's this kind of thing that causes auto parts store workers to ask me "is it a grand" when I ask for jeep cherokee parts. NO, if it were a grand, I would have said so. Apparently the OP wouldn't though... (I'm just poking fun here, you stumbled into a pet peeve of mine, but I have a sense of humor about it.)

I could have helped if it were a cherokee. being it's a dodge engine, dodge transmission, and a GRAND cherokee, I know bupkiss, but I wish you the best of luck. If it won't budge I'd start with shift linkage, NSS, transmission fuses, and transmission solenoids.

Good luck finding a solution, I hope it's cheap.

[Clint45]

I have diagnosed your problem: it is a Grand Cherokee. They are notorious for all sorts of weird electrical issues, often related to the computer, and have very poor satisfaction ratings at Consumer Reports.