2000 jag s-type. When i go to start the car there is no fuel pump. I turn the key off 1 time some times it takes 2 times then the pump will come on and start right up. I have replaced the pump and swapped the relays
any help would be grate

 

Take a look at the sockets where the relays plug in. In a couple of recent threads, people have found loose sockets and been able to pry the contacts out slightly to reestablish a good connection.

You could even make a test gauge from a strip of thin metal the same thickness as the socket prongs. Slip the test gauge into each socket to find any that don't have enough tension.

 

i will check that now

 

Everthing there feels nice an tight

 

I now know that the prob in its the security system if i trun the key on an no pump i can leave the key on the the security light will start flashing if the pump comes on the security light will go out. Now i have to figer out why

 

Good troubleshooting, although it's okay to use punctuation. Unlike Twitter, there's no character limit here...

Now the trick is to figure out what input is causing the security lockout. I'm not well versed with the system.

By the way, thanks for humoring me and checking the relay sockets, even though that wasn't it.

 

Do you have a spare key you can try?

 

i do not have a spare key i only have 1 an 1 remote. I dont even have the green key.

 

When the PATS (red light on dash) is flashing. Try to count the flashes. They usually will be repeated so just keep counting and writing it down until you kind of get the rhythm down. The longer pauses separate one sequence from another. Sort of like Morse Code.

Sometimes it just flashes real fast and is not indicating a code.

Might give another clue?
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its giving me code 16

 

How old is the battery? A failing or weak battery can cause many mysterious electrical faults.

 

The battery is only about 8 moths old. It checked good.

 

Already answered by Bob https://www.jaguarforums.com/forum/s...3/#post1766938

 

Ok so i took the car to the dealership over two weeks ago and they said it needed a new key an $800 to fix(after the car had been there 2weeks). Took 4 days for them to get the new key. They texed me today and said the key was in and that it should be ready today. As i was getting ready to make the hour an a hafe trip there they texed me an said the car still will not start and that the ECM is offline. If that is the case they should have know that as soon as they hooked up the the scan tool.I have been working on cars all my life from small shops to dealership and that is something you know real quick!

 

Get them to commit all this to a wriiten explanation of the problem and their proposed solution / estimate. Sounds like you are about to do battle with the dealership.

My own personal experience with a dealership technician & service writer was horrible and I exposed a scam they were doing to unsuspecting customers. My lesson learned was ALWAYS involve the Service Manager if you have any doubts that you are being sold unnecessary services / parts you don’t need and PRAY that Svc Mgr makes it right. But always start with WRITTEN documentation.