Hi there,

This My first post and my first J car.
Problem is when turn key is not start engine and alos no any sound!

But first need to inform you I bought the xj from police auctions and they informed me no key to car.
So we create smilier key and but good battery then below is what we found :
- front lights radio the dashboard lights all on.
- when tur key all car not start and no any sound.
- only driver door unlocked but the other doors even we unlocked them from inside but didn't open!

- there are fuse box in back I guess for fuel pump it's blue cube when it's in the dashboard lights not work properly but when we remove it all dashboard lights on good.
- the key shop who create the key said no neey program or tune this key or car doesn't have security computer look!

- I really happy finally got XJ Jaguar but need your help to start it later to move to paint and other things.

Please help and guide me as in my country few people and garage work in that model and type.
Thanks in advance and regards

 

First question is what is your Country?

There is a security immobiliser system fitted to many cars. This is my understanding:
- UK and Europe all cars have the system.
- USA and Canada none of the cars have the system
- Rest of World I think it is fitted as standard when there is a base security system (alarm) which was optional

So depending on where the car was originally sold, you may need to have a "chipped" key that needs to be programmed to the car.

 

Thanks first, I'm living in United Arab Emirates - Dubai.
The car I saw that plate on door need to send you photo of it. As I remember was in English and some Japanese words.
I attached the chassis number info got it from Google pla look at it.

Really like this type and want it to be in good condition so looking for your help guys.
Regards

 

Attached what do you think is this USA or UK?

 

It looks like your car is a Japanese model (or at least it lived there for a while). Is the steering wheel on the right? If so, that would probably confirm it.

So there is a good chance that the car has the immobiliser system.

Look in the area of the steering column and behind the dashboard for a module that looks like this






This the the module that interprets the signal from the key through the reader unit which is around the ignition key barrel. If you have one of these modules then I think you certainly have an immobiliser and therefore starting the car without a key programmed to the car is going to be very difficult.

 

Thanks for your replying.

The steering on left not right side.
I will look for that device and confirm tomorrow.

The key shop after create a key and it's work to turn the ignition but engine no single sound But the key shop said after checking the steering and ignition this car no need a program!!

I'm not sure now but let me try find that device and confirm.
​​​​

 

I agree with all that has been said about the transponder in the key, but it sounds as if you may be on your way to bottoming that out already.
The other thing which can cause a complete 0 when turning the key, despite dash lights etc coming on is the inertia switch coming on. You mention the car was from a police auction, and if the key is missing, there must be a chance it has been bumped or knocked in transit. The switch resides at the bottom of the A pillar inside the right hand footwell. It has a black rubber button on top. Try pressing it in to reset.

 

Also be sure the P by the gearstick is illuminated. If not give it a wiggle, as without it the car will not start.

 

Yes its illuminated but still we trying find the problem.
Regards

 

try the inertia switch. A 5 minute job.

 

Sorry but could not understand it?

 

 

The switch is always on the right hand A pillar, regardless of whether the vehicle is Right or left hand drive. The diagram shows a pedal, but in your case there will be none as the switch is in the passenger footwell.

 

Any sort of bump can trigger it, such as being lifted on and off of a transporter, or working in the area of the switch and bumping it. I triggered mine by hitting the inside of the wheelarch with a hammer.

 

Hi b1mcb,

If could you or someone tell me what I should do if the module in the Jaguar then I need to create a key with new programming to new key Or if I didn't find that module the what I should check or do?

​​​​​Looking for your reply an d thanks.
After 2 hr will go see the Jaguar in garage.

 

Well first of all check the Inertia Switch as described above by @countyjag . There is a good chance that could be your problem and an easy quick fix. I hope so.

If you do not find the module, then there are lots of things to check. There is a thread that covers most non start problems here that you will need to work through. Here is a link
https://www.jaguarforums.com/forum/x...ngines-120221/


For a no crank problem like you have, then begin with the things that prevent the starter from operating.

- check that the "Check Engine" light is ON when you try to start the car
- check the starter relay (input and output)
- check the engine earth strap

There are more things but these are a good start.


If you find that you do have the immobiliser module then that is more of a problem. You will need to get a key made with a transponder chip in it, and then get that programmed to the car. I think that can only be done with old Jaguar Diagnostic software. It sounds like that might be a challenge in your country. An alternative (and I don't know if this works) you could try and buy a complete matched set of ECU, Keys etc like this example for a 3.2 car

https://www.ebay.co.uk/itm/jaguar-x3...UAAOSw8V9eMsrz

As a final alternative, there is a forum member on here called @XJRengineer who can reprogram the ECU to remove the Immobiliser function. Don't know what the cost is.


Good Luck, I hope you are successful as it sounds like you have a passion for the car.

 

Worth trying a code reader as the Imobilizer will throw a code when the wrong key is tried.

 

Thanks do you mean to reprogram the new key it might then engine start.

 

If the car is fitted with the immobolizer, then it needs the correct transponder in the key to start (it will throw a code if wrong). The key can be re programmed using jaguar dealer software if needed.

 

Thank you all for replying.

OK today we checked that there is No ECU and I took photo pls check also




Also checked all fueses that it's inside only the I guess the fuse of fuel pump damaged.






Also I found two boxes of Lamp control just wnat to inform you.

Also I called the key shop to confirm me that was no ECU device that to look the car. (and maybe it was but some one removed it as I can see the yellow fuse to connect it see the photos up)

So now I'm assuming need a good electrical man to check all car and if other pls let me know to do also.

​​​Looking for your replys hope we can fix the legend car.
Regards