Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[deadomega2]

Hi everyone,i have 94 2.0l omega.I recently had immobiliser problems and had a new key made with newer style fob by Autolocks,reprogrammed worked fine.Although this cost an arm and a leg,i thought my problems were over ,not so.Autolocks came out again and said this time the ir receiver had gone down,small unit in the roof under a small dome.I have tried everywhere to obtain one,but seems they are discontinued.Is there a way of bypassing the ir receiver?Been without car now for 3 weeks.Would be eternally grateful if someone could help,thanks jon.

[TIN-V6]

you could try a local scrap yard or one of those find a part ones,
good luck

[Entwood]

I believe there is a way of bypassing the older IR systems .. but not the RF ones.

I don't know how you do it but Mark_DTM might ... he knows more about these cars than most folk.. might be worth a PM to him

[Kevin Wood]

I believe there is a way to bypass this but it would be best to PM mark for the info as it would not be wise to publish it here. Failing that have you thought about getting a new IR receiver from a breaker's yard?

Kevin

[Marks DTM Calib]

Sorted this one last week people......car now running  

[Grrrrrr]

Don't suppose you'd like to share how you did it?

Both my keys have failed for my 1994 model. Just got a new fob off e-bay. Looks right and all codes match inside. Looks like a replacement fob because it clearly has never had a key inserted. Anyway, cannot seem to reprogram the key in usual way and immobiliser light is on continuously. I fear the receiver may have packed in!

[Grrrrrr]

Incidentally, just tried the paper clip test and got diddly squat so now even more confused!

[Grrrrrr]

Having done some more reading it appears that my new key probably needs a Tech 2 (whatever that is) to hard code some PIN number into my remote. Apparently the ignition and press remote button merely 'resynchs' the fob rather than reprograms it. Guess it's a grab the paperwork and head to Vauxhall job unless I can source a 'Tech 2'!

[TheBoy]

Having done some more reading it appears that my new key probably needs a Tech 2 (whatever that is) to hard code some PIN number into my remote. Apparently the ignition and press remote button merely 'resynchs' the fob rather than reprograms it. Guess it's a grab the paperwork and head to Vauxhall job unless I can source a 'Tech 2'!

Where in Bucks are you?

Also, is yours infrared or RF type fob

[Grrrrrr]

Mid-Bucks (Aylesbury, in fact.)

Infra-red, I think. Mine's an original Omega B (prefacelift 1994). Had a stroke of luck. Worked out that if I put new batteries in, resynch, deimmobilise, and then immediately take the batteries out I can start the car. If I leave the batteries in it drains them overnight.

Also, managed to get a new key fob off e-bay (2 in fact.) For anyone else in the same boat, here's what you do next (apparently.)

There should be a security card in your grey book. On that is a code for the immobiliser. If that card is missing (like mine is) then you have to go to a main dealer who charges you £32 just to contact Vauxhall and ask what the number is (need a copy of your logbook for them to fax in and it can still take up to 3 days.) After that the Vauxhall dealer offers to charge you £70 to reprogram each key. Alternatively, Aylesbury Autokey will drive out to your car (useful if like mine it's been stuck immobilised on the drive for 4 days) and reprogram however many you like for £65 (but they need the immobiliser code because apparently they can't clone the information out of the old one.)

If ever I get a chance to work out what was failing in the old fobs I'll post it up. Odd that both failed at the same time being that same age. I'm guessing same component probably failed in each.

In the meantime Mark has very kindly furnished me with a rather nifty workaround should my key fail altogether so many thanks to Mark for that.

[Marks DTM Calib]

Mid-Bucks (Aylesbury, in fact.)

Infra-red, I think. Mine's an original Omega B (prefacelift 1994). Had a stroke of luck. Worked out that if I put new batteries in, resynch, deimmobilise, and then immediately take the batteries out I can start the car. If I leave the batteries in it drains them overnight.

Also, managed to get a new key fob off e-bay (2 in fact.) For anyone else in the same boat, here's what you do next (apparently.)

There should be a security card in your grey book. On that is a code for the immobiliser. If that card is missing (like mine is) then you have to go to a main dealer who charges you £32 just to contact Vauxhall and ask what the number is (need a copy of your logbook for them to fax in and it can still take up to 3 days.) After that the Vauxhall dealer offers to charge you £70 to reprogram each key. Alternatively, Aylesbury Autokey will drive out to your car (useful if like mine it's been stuck immobilised on the drive for 4 days) and reprogram however many you like for £65 (but they need the immobiliser code because apparently they can't clone the information out of the old one.)

If ever I get a chance to work out what was failing in the old fobs I'll post it up. Odd that both failed at the same time being that same age. I'm guessing same component probably failed in each.

In the meantime Mark has very kindly furnished me with a rather nifty workaround should my key fail altogether so many thanks to Mark for that.

I to would be interested in trying to work out the failure....

I suspect there may be a leaky electrolytic cap or even a transistor inside doing a similar thing.

If you wish me to try some diag on one then I am happy to have a look for you.

Note also that the work around provided only works on the very early infra red setups and not on the RF remote systems.

[TheBoy]

Mid-Bucks (Aylesbury, in fact.)

Infra-red, I think. Mine's an original Omega B (prefacelift 1994). Had a stroke of luck. Worked out that if I put new batteries in, resynch, deimmobilise, and then immediately take the batteries out I can start the car. If I leave the batteries in it drains them overnight.

Also, managed to get a new key fob off e-bay (2 in fact.) For anyone else in the same boat, here's what you do next (apparently.)

There should be a security card in your grey book. On that is a code for the immobiliser. If that card is missing (like mine is) then you have to go to a main dealer who charges you £32 just to contact Vauxhall and ask what the number is (need a copy of your logbook for them to fax in and it can still take up to 3 days.) After that the Vauxhall dealer offers to charge you £70 to reprogram each key. Alternatively, Aylesbury Autokey will drive out to your car (useful if like mine it's been stuck immobilised on the drive for 4 days) and reprogram however many you like for £65 (but they need the immobiliser code because apparently they can't clone the information out of the old one.)

If ever I get a chance to work out what was failing in the old fobs I'll post it up. Odd that both failed at the same time being that same age. I'm guessing same component probably failed in each.

In the meantime Mark has very kindly furnished me with a rather nifty workaround should my key fail altogether so many thanks to Mark for that.

I used to live in Aylesbury until 2001, then moved 27m north to Brackley.

Shop around for carpass - prices vary from dealer to dealer

[Grrrrrr]

OK, managed to get a look at this earlier when number 1 son was having a kip.

It was indeed the same component that failed on both fobs, namely the large central chip. The chip has 8 pins top and bottom (16 in all) and the following codes written on it:

TFK
C2002 AM
55 C 418

Assuming the one I got off ebay is OK, the voltages across each pair of pins (from left to right with infra-red diode pointing towards you and writing on the chip the right way up) should be:

0 6 6 6 0 0 0 6

Of course, you may not get 6V if your batteries aren't new. (I've spent £24 on batteries the last few weeks!) Comparing each pin to earth (top row first, left to right again):

6 6 6 6 3 0 0 6
0 0 0 0 6 0 0 0

I've rounded the voltages a bit but that 3 came as a shock!

I guess it may be possible to take those codes, look at some sort of equivalence tables and get a replacement chip from Maplin but considering that big chip more than likely holds the immobiliser code, we're back to having to reprogram it so not worth the hassle. Might as well get a replacement fob off ebay, although having said that they're only £20 new from the dealer (I think!)

Did try uploading some images but all I succeeded in doing was wiping out all I had typed! Sorry to disappoint but I give up!

So, I'm back to waiting for my second key to arrive! Hope this helps anyone else trying to work out what's wrong with their remote, assuming there are any other 1994 Omegas still on the road other than mine!

[Grrrrrr]

The saga continues.

Vauxhall have come back with an immobiliser code of N/F (not fitted!)

So, took it down the main dealer to demonstrate it most definitely is fitted with one and they're completely stumped! No idea of how to recode the keys other than try the resynching trick with a brand new key or find a very old mechanic with a tech 1 and see if he knows anything.

So, either their records are wrong (small comfort) or it was fitted by the dealer before first purchase but after manufacture. Great.

Looks like I might have to be reliant on Mark's trick after all!

[Grrrrrr]

Final installment.

Appears cars fitted with just an immobiliser HAVE NO CODE! Just plug your tech 2 type unit in and you can program as many keys as you like.

Those fitted with alarm and immobiliser will require a code to get in though, apparently.