Jeep Cherokee ECM

Here is your fuse box diagram on 2 websites.

Jeep Cherokee (XJ; 1997-2001) fuses and relays

Fuse Box Diagrams https://fuse-box.info > jeep > jeep-cherokee-xj-1997-2...

Fuse Box Location ... It is located behind the lid under the glove compartment. The location of the fuses in the passenger compartment: Jeep Cherokee (1997-2001 ...

'97-'01 Jeep Cherokee XJ Fuse Box Diagram

knigaproavto.ru https://knigaproavto.ru > ... > Jeep > Cherokee

Oct 7, 2019 - Fuse Box Diagram Jeep Cherokee 2.5L AMC 150, 4.0L AMC 242 and 2.5L TurboDiesel (XJ; 1997, 1998, 1999, 2000, 2001)

As I said in your last question, there are very few reasons you need to go near it. A good auto electrician with a professional grade scan tool computer can diagnose the ECM for faults in about 20 to 30 minutes. It is not a job for 'let's try changing this'. If it is bad, a new one needs a tech to install as it has to be programmed with the VIN Number and mileage and set up.
https://www.google.com/search?q=auto+electrician+near+me

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It is in the engine bay next to the radiator cap. There are very few reasons where you ever need to go near it.

Where is the ECM located on a 2001 Jeep Cherokee Sport

Jeep Cherokee Forum https://www.cherokeeforum.com > where-ecm-located...

Feb 4, 2018 · 16 posts · 3 authors
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here - Where is the ECM located on a 2001 Jeep Cherokee Sport ?
where is my pcm located? HELP! please
Aug 19, 2014
Where is the ECM located ? - Jeep Cherokee Forum
Oct 1, 2015
???replacing an XJ computer??? - Jeep Cherokee Forum
Apr 12, 2017
Replacing the PCM - Jeep Cherokee Forum
Dec 6, 2009
More results from www.cherokeeforum.com

More here

https://www.google.com/search?q=2001+jeep+cherokee+sport+ecm+location

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Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine size . Under system click on engine , then under subsystem on fuel controls . That is if this is the PCM/ECM - engine computer . Click the search button then the blue link's one at a time .

Presumably you are referring to the engine management ECU rather than any of the other black box computers scattered around the vehicle?

It is usual for cars produced in the last few decades to be fitted with an immobiliser. If your car has an immobiliser you need to take advice from the dealer about whether the replacement ECU is ordered with your car's code already installed, whether it arrives with a random code requiring the security system to be recoded or whether the ECU arrives blank and the code is programmed into it as part of the fitting process.

its 2 places.
The FSM (a book by that name from Jeep, by year,model)
and Alldata.com
Just the connector, the schematics dont show all pins and names.
only by function, say you have bad TPS input and you got TPS page
and see pins and colors on PCM.
the connector is in the book.
at the end of chapter 8w, page 80 are all connectors and page one is the index there. listing page 8w-28,29,30 for the 3 PCM conn.
see them here, in WIRING.
PDF page 178.
there.
see it?
http://www.jedi.com/obiwan/jeep/misc/models.html

on ZJ section

posted 100s of times now.
but the search on this site , fixya sux

Did you replace it with a re-manufactured or used ecm? If used, not all ecms are compatible with every vehicle. It has to be the exact same numbers on the ecm, matching the one in your jeep.

Your ecm is going bad. If you haven't noticed yet, the vehicle will only start once the check engine light comes on, on the dash. That's the ecm finally sending power to the relays that feed the fuel pump and ignition systems. If you're mechanically and electrically handy you can remove the ecm, disassemble it and replace the three power capacitors inside. If not, just have the ecm checked and replaced.

Your engine computer is bad. It's a good thing that you mentioned about the check engine light dying also, as this is a classic sign of a bad ecm. I have repaired more than one of these Jeep computers, replacing the three power capacitors located inside the computer, and they have worked for years afterwards. If you don't have the skills or knowledge to repair the ecm, get yourself a rebuilt ecm unit and swap it out.

YEP BOTH CAN MEAN THE SAME.BUT REAL NAME IS VECHICLE SPEED SENSOR.EVERY VECHICLE YOU LOOK UP YOU WILL SEE VSS SENSOR.

The CPS is one of the first places to start, but remember that the signal goes thru the ECM first, which ultimately supplies power to the coil, I've had to replace the ECM on my 96 Grand Cherokee 4.0 3 times. The dealer wanted to replace the crack and cam sensors, but it was only the computer that was bad.  Sorry I cant give you any definitive answers but I did get it to turn over when I hit the computer with a wrench!