Wiring Diagram for ECU connector

[dominicI]

I'm trying to get a diagram or list of which pins/cables do what on the large plug that goes into the ECU (might be called BCM in the US). Mine is an 2004 Cherokee 2.8CRD (UK)(so basicly a Liberty) an advice?, I'm after finding out which one is the CAN Hi and CAN Lo (for a CAN BUS Feed). I've put another post elsewere but think i may have put it in the wrong section.

Dominic

 

[Powerslave]

Check your PM dude...

 

[dominicI]

Powerslave, Thanks for that great stuff, a light bit of bedtime reading

It would appear that on the Data link connector it's pin 4 Hi (+) and pin 14 for Lo(-) and on the Engine Module conector its 53 for (+) and 54 for (-). The only problem i have is the wires are a completly differant colour, that could be to do with the manual being for a 2006 or because i have a UK model? I'm off now to take it to a mates garage so we can see if the wire colour is the same at the ECU end.

Dominic

 

[dominicI]

Took it to my mates garage and had a look at the cables, nothing really seems to match up so i've booked it in with a local Auto electrician, that way if they blow up the ECU it's there fault !!

 

[dominicI]

Well it's back from the auto electrician, they spent 3 hours trying to fihure out were it would connect up to with no answer.

So i'm left with one question is my 2004 (build date 2003) a CAN BUS version or not??

If it is, were are the cables?? if not were can i get a speed signal feed???

Help needed big time

Dominic

 

[Serch]

Jeep Liberty wiring diagram

Hi everyone,
I´m looking for a wiring diagram for a jeep liberty sport 2004.
ECU and fuse box were stolen and we have recovered them, but all wires were cut, now we need to re install them, thats why I need this diagram.
All your help will be much appreciated


Sergio

 

[04Liberty]

2004 is still a PCI bus

 

[Billwill]

Well it's back from the auto electrician, they spent 3 hours trying to fihure out were it would connect up to with no answer.

So i'm left with one question is my 2004 (build date 2003) a CAN BUS version or not??

If it is, were are the cables?? if not were can i get a speed signal feed???

Help needed big time

Dominic

OK to answer your first question.....your Jeep uses a PCI bus not a CAN bus....totally different to 2006 model.

What exactly is your problem? I can attach a few relevant circuit diagrams here or if you are prepared to download about 63 Mb of PDF data then here is the link to the full KJ service manual and circuit diagram.

Download the "2003 KJ Service manual"....it will be close enough for your model.

Index of /manuals/Jeep/KJ

 

[Billwill]

Hi everyone,
I´m looking for a wiring diagram for a jeep liberty sport 2004.
ECU and fuse box were stolen and we have recovered them, but all wires were cut, now we need to re install them, thats why I need this diagram.
All your help will be much appreciated


Sergio

Hi Sergio, See the link to the manuals that I posted for Dominic!

You should be able to connect the wires color for color unless the cut-off pieces have been lost.