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Discussion Starter · #1 ·
Hi

I have a 1995 pre face lift frontera sport

The battery went flat for a long time and now it appears that the immobiliser has kicked in.

I live on the North York Moors so towing the car to a dealer would be a pain or costly if they came for it.

Is there any way of bypassing the immobiliser?

It appears I have the one that has the sensor ring around the ignition lock and the square transponder built into the key.

I have seen tech 1 cables on ebay, would buying one of these be useful, is there any software for them?

cheers

Paul
 

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VXON Resident 4x4 and diesel specialist
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7,524 Posts
try the fuel pump relay located near headlamp at front unusual to be immobiliser also could be fuel filter blocked
 

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VXon Frontera Monkey
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Hi you need to tow it to a dealer and get them to order an new brain - then they can use tech 1 to reset the fobs to the new brain -
this is the only way to do it - if the immobiliser brain is biffed there is no other way
this is only for the tectus ones with the swipe fobs
cheers
Steve
 

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Discussion Starter · #5 ·
thanks for the reply, my immobiliser isnt a swipe one its the one with the proximity ring that detects when a coded key is in the ignition. my garage , which is a 30 mile tow away, is asking for well over £100 just to look at it! is there no way to bypass this. I am considering fitting a megajolt system and bypassing the ignition circuit totally. paul
 

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VXon Frontera Monkey
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Hi as far as i can remember the A series 1995 wasn't fitted with transponder type keys - this may well be an after market one
or you are mistaken - about the transponder - have you a split type key - if not then you have no transponder - all frontera have either a split key transponder or a swipe fob
if it hes neither then its a key barrel operated type and this is the 900 series alarm immobiliser
cheers
Steve
 

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Discussion Starter · #7 ·
Thanks Steve
If it is a 900 series is it bypassable? I could really do with using this truck as I'm on the North York moors under a lot of snow. The battery went flat over the summer and it hasn't started since.
cheers

Paul
 

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Discussion Starter · #8 ·
Hi

I'm about to scrap this truck.

I live too far away from a main dealer to warrant the cost of them towing the car in then charging me to first look at what the problem may be then charging me VX new prices to fix it. The car isn't worth it.

So one last go on the forum.

Its a 1995 2 litre sport.

I can see no evidence of a swipe point, the key is not a split type, the engine turns over but will not fire.

The engine management light flashes.

What do I need to look for to help you guys pin down what sort of immobiliser is fitted to the car and so help you help me to either bypass it or repair it.

I have thought of fitting a megajolt system to it, would that work?

cheers

paul
 

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VXON Resident 4x4 and diesel specialist
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I would try relay first on the headlamp panel followed by cranksensor

any garage can read codes not just vx
 

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VXon Frontera Monkey
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Hi the 900 series is alarm only - not immobiliser - there will be another faullt stopping running - i would go for fuel pump or relay as steve said - check for a spark and fuel when cranking - no spark is the crank sensor/relay - no fuel is the relay or pump
cheers
Steve
 

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Discussion Starter · #11 ·
Thanks for the replies, yep the damned things still sat on the drive......I don't want to give up on it!
I'm confused though, does it have an immobiliser at all, how do I tell if it does and if so which one it is?

I have pulled the relay from behind the glove box and it tests ok, I have also tested the one by the headlight.

There is also an ecu behind the glove box 91 148 830 haven't a clue what it is but someone has been in it already.

If theres no immobiliser I'm sure I'll crack it but if there is it'll be a scrap job.

cheers

paul
 

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VXon Frontera Monkey
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Hi thats the part number for the optional immobiliser as fitted to the later A series - i have the info and its what i said before - the immobiliser brain has died and you need the modified one -
regards
Steve
 

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Discussion Starter · #13 ·
Thanks Steve

Bummer!

although my light is flashing not on constantly, does that make a difference?

Could I go to a scrapyard and get another immobiliser and key set or are there more parts to the system than that?

Paul
 

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VXon Frontera Monkey
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Hi it doesn't list them as being a set so maybe - however if its flashing it doesn't sound like the fault i sent you - which says the light stays on
i presume you have tried disconnecting the battery with the ignition on - waiting 30 minutes and reconnecting again with the ignition on ?
what do you do to get her to start normally ? - is it just a case of inputting the key in the hole or do you press a button or swipe?
cheers
Steve
 

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Discussion Starter · #15 ·
Its all a bit clearer now

OK

I bought this as a toy to try and get it going, I was told it had just stoped after the battery went flat.

Well today it was sunny so I thought I'd give it a proper looking at.

Turns out the previous owner was more than a tad economical with the truth!

So here we go with what I now know.

It looks to me like there should be a swipe point as there is a blank plug on the steering bezel.

behind the glove box is an ecu number 91 148 830
near the speedo is an ecu 91 152 393 and a few loose wires that look like they should be in the multiplug that goes to it, question is in which of the spare holes?

I've found the two sockets that should take the leadsfrom the swipe unit neatly taped up out of the way.

I've done the paper clip readout of the errors and got both 144 and 145 immobiliser codes and one for the crank sensor.

Question, are the 2 ecu's actually a valid pair? Can I go to a scra yard and get 2 ecu's a swipe and a swipepoint from there and expect the car to start?

Or

Should I bung it on ebay for parts?

oh yes , one other thing, it can produce a spark...........not often but its something!

Help!

cheers

Paul
 

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VXon Frontera Monkey
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Hi - right i would go for the crank sensor first - then yes a second hand swiper would work as its not ecu specific - just the immobiliser ecu is specific to the fobs
cheers
Steve
 

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Discussion Starter · #17 ·
Thanks again Steve

I don't have a "swipe fob" though so I guess I'll have to get the fob/swipe pad/and the 2 ecu's.

I'll try the crank sensor first but the engine management light flashes about 2 seconds afterturning on the ignition so I guess thats when it hasn't recognised a valid swipe.

Paul
 
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