Hi all,

My new Keys and alarm fob turned up today from Jaguar. I have a 92 XJR-S, and the key fob model is DAC7990. Can anyone advise on how to activate this against my alarm system?



Thanks

Rich
DAC7990 Remote Alarm KeyFob

 

Disconnect battery then reconnect. There should be beeping when you reconnect, this is the time to press the remote. If it links then you should here a beep back. You can link up to five remotes. Tony

 

Thanks Tony i'll give that a go. :-)

 

Also you must press a remote after every beep to set it up to work. Even if you only have 1 you must press the same one 5 times.

I have the instruction manual and installation booklet for that alarm system.


Where did you get the fob from. I can only find the 433 MHZ ones not the 418 for the "92 MY. How much ?

 

Would you happen to know which year they switched fro 418 to 433? Mine's a 94 XJS and I only have one key with a dead battery.

Padre

 

The US used 318 for a while. Not sure what they use and when, l believe change was around the 1993 MY.

 

Hi Malc,

Would you mind sharing the booklet? Link below to their site...

https://jaguarpartsgroup.com/search?q=DAC7990

All in with VAT was about £111. I understand, however, that they ordered in from Jaguar, so assume they may still be available from Heritage. I may try Jaguar themselves when I have time as I need another as backup anyway!

Best

Rich

 

I have been checking jaguarclassicparts.com but they never list the 7990 . . . Might call them then, although l picked up a couple on fleabay a few weeks ago.

Pm me your email and l will attempt to send ya the files.

 

I'm quite confident that you have been sold the wrong fob/remote/transmitter. The one in your picture is for earlier cars than yours. I've attached a picture of the item I believe you need. There are various (3 to my knowledge) revisions of this remote & some simply won't work - you need to check the circuit board in the remote & from memory you need the earlier (lower letter) revisions.

Again from memory - to program a new remote, under the "tray" in the centre console should be a wiring connector with possibly yellow & black wires. The ignition needs to be in position 2 & the 2 wires need to be "shorted together" several times within a few seconds. The alarm will then start bleeping to indicate that it's in "learn mode" - you then press one of your "new" transmitter buttons & the car's alarm will bleep to indicate that the transmitter has been accepted. You can program up to 5 transmitters. If you only have one, you press the button on that transmitter 5 times. If you have 2 transmitters you press the button on 1 of them 3 times & push the button twice on the other 1 etc.

The transmitter should then lock & unlock your car, arm & disarm the alarm. It should also turn your headlights on for a defined period to in theory "light your way to your door from your car".

Rgds.

A.

 

Is it possible that as long as they are the same frequency they will work? The reason I ask is that the remote that came with the car (and works - albeit taped together) is the DAC7990. I assumed therefore, that I would need the same one? I may try finding one of these on ebay and see if it will work. Cant hurt I guess.

Has anyone tried the remote cloners? Example of one here on ebay: http://www.ebay.co.uk/itm/3306934725...%3AMEBIDX%3AIT

Cheers

Rich

 

If your original is 7990 then you have the right part. The freq. and that messing around with cables changed in the '93 MY. Mines a '91 '92 MY and has the same remote.

Disconnect the neg bat lead reconnect and after every beep press a remote, total 5 times.
Don't forget that you WILL need the radio code !!

 

Mine's a 94 and has the same transponder key. I don't have the secondary alarm unit. Just don't know if the frequencies changed from earlier ones.

Guess I'll actually have to visit a Jag dealer rather than eBay. It will be easier to get them to do it right.

Padre

 

Padre, the early cars didn't have transponder keys. That came later.


Go to jaguarclassicparts.com Its the official Jaguar site. send them an email with your VIN number and which key you need.

 

Beavis, l bought one of the new 433 remotes on ebay, 35.00 quid l think. l just changed the circuit boards out and low and behold....l have a 'new' 418 remote.
NEW JAGUAR XJS XJ6 XJ12 KEY FOB REGION 3 433 MHZ | eBay

 

Beavis,

If you got the vehicle care handbook when you bought your car that should show you the style of remote fob you need - the cases were pretty fragile & it's possible a previous owner swapped the correct working circuit board into the wrong case.

Model Year is largely irrelevant here in the UK - we're more into year of registration but if your car is a mid to late 1992 registered car it would be classed in the USA as a 93MY car. Are the last 6 digits of your VIN higher than 179737? If so I'm confident that the part you need is this:

Rgds.

A.

 

That one works on 318 MHZ. as far as l know we used 418 and later 433 here in the UK. So it will be one or t'other.
My car (1800** 1991 early facelift) has the UK alarm system which l bought new from Jag. and fitted as a plug and play kit, and uses dac 7990 as shown in the OP photos. I have sent him the Jaguar installation and user leaflet that came with the kit.
He will find out if the Feq. is correct as soon as he reconnects the Neg. bat. lead and the remote will be recognized (answer beep) or not (no answer beep)


Simples....Hopefully one of us is correct and it solves the problem...

 

I sold my 92 facelift XJR-S over 10 years ago - the bleeping alarm after disconnecting & reconnecting the battery rings a distant bell in my memory as happening with that car but I'm 99.9% sure it did not have the style of remote shown in the OP's 1st photo.

My car's VIN ends 188666 & it has the attached remote (in fact it has 5 of them - bought from evilbay as experiments in the days when they could be bought for only a few pounds each. This is how I know about the REV A, REV B & REV F etc on the circuit boards & that some just cannot be programmed to work - even if they look correct).

Regards

A.

 

Jaguar have still got stock of 418mhz DAC7990 even though it's not listed on their parts system website. About £89 + vat.

Paul

 

Eureka! Read the manual! Lucky I have mine. Turns out mine is not a transponder key, but a flashlight key!

Padre

 

cool, now just put a new battery in it and Bobs yer uncle.......