Steve Rst

As title really

I have a 2.0l zetec engine from a 2000 x reg focus.

I'm fitting it into something else, and want to use the original ecu/loom for the moment to get it up and running.

I have the key, transponder etc, but i dont want to use the alarm/immobiliser.

If i split the loom, do i have to fool the ecu into thinking the alarm is there? or can i just cut it out?

cheers for any help

Obviously this is info that may not want to go into the public domain for peoples car security, so if someone could pm the answer that would be great.

Steve Rst

bump

pa_sjo

The immobilisor is inside the ECU, so no.

Steve Rst

so whats the black box all about then?

clarke5700

probaly the transponder unit

westus1

iTrader: (6)

you cant cut it out, its through the ecu
unless you've got an aftermarket 1 fitted as well
but you cant do away with the chip'd key

pa_sjo

An alternative would be to use a very early 2L Mondeo ECU and loom. Something circa 1993. They ran an external PATS unit which you can bypass by bridging a couple of wires.

tabetha

AS above the external pats ones on the early cars up to 96 only need one wire cutting out and bridging, they only cut the ignition feed.
tabetha

Steve Rst

ive got the key and transponder ready, so i'll just have to wire that all in then.

cheers

steve

mgb

I have the same problem but on a '99 Focus 2Ltr Zetec. The loom I have stopped at the connector on the A Post which I have now removed.
I can't find any details for the wiring of the key transponder, does anyone know which pins on the ECU the transponder wires should be connected to?

JonathanJ

Easiest way is to go to maplins and get a black plastic box , get the key and the pickup ring and place in box and then hide box up the back of the dash , or just tape key and ring together up back of dash and use your normal key to energise ignition circuit , quick esay and saves a lot of hassle

mgb

Thanks Jonathan, the problem is that I don't have the wiring between the transponder and the ECU and therefore do not know which connections to make
Cheers
Mike

PerS

mgb

If you have got an ECU with 104 pins:

No 1 on the transponder to +
No 2 to ground
No 3 to pin 19 on ECU
No 4 to pin 53 on ECU

Per

mgb

Thanks Per

Unfortunately, mine is a 60 pin ECU

Cheers

Mike

PerS

60 pin ECU (EEC V):

No 1 on the transponder to +
No 2 to ground
No 3 to pin 38 on ECU
No 4 to pin 5 on ECU

Per

mgb

Thanks Per - that is excellent.

Is there a convention when numbering the pins on the PATS unit, it does not have any numbers on it

Cheers

Mike

PerS

mgb

Send me a PM with you e-mail adress and I will send you a picture with the pin numbering.

Per

gklhso

perS, from your replies i noticed that you do know what you are talkin about, so i have a question, I have a mk2 mondeo 1.6 and i put a 2.0 silvertop in, unfortunately my car has an EEC-V 104 pin ECU, so how can i fit the old DEEP DESK or DEWY non pats ECU's???

Mk4 Rick

If I move the wire from pin 4 to 53 what do I do with the wire from pin 53?

johnxrs

johnny curt 1

is there any chance you can send me the details on how to do this for a 60pin ecu as mine is totally fried in the black pats box
P/M or email obviously as it’s not open forum information 🤞

sharan94

Could you tell me how you can bypass the immobilizer system
My machine has the ecu eec-iv + pats separate.
Thank you.
​​​​

sharan94

Hello
I also have a Ford Escort convertible 1.8 liter 96kw from 1994 with all the keys lost. Could you tell me how to start the machine by bypassing the immobilzer
My machine has an eec-iv ecu + external pats.
Thank you.

frodmyster

does this bypass the immobiliser? I'm having the same problem

frodmyster

Is it possible to solder an emulator to the ecu board?

frodmyster

I havs seen this one via google search

frodmyster

So this is my ecu



What I am reading online is that if I remove this chip


And solder a wire to join these two pins



Then the immobiliser is disabled. Hope this helps somebody