I have not yet I’m going to send you a picture can you please tell me what one is a starter relay

 

plz tell me your still here

 

The document I have shows something different so there may have been some changes around your production date

 

Still here but need to record some #s in another room before I foget

 

what should I do then

 

I couldn't find the specific starter relay based on the information I have

Maybe follow the small wire from the starter solenoid on the starter motor back to the relay

 

OK why I do that what else should I check after

 

The starter relay and it's proper functioning and test points is the split your problem in half point

Not much you can check on the starter beside ensuring the cables are tight ( they do come loose )

On the ignition switch it should be tested at the starter relay socket , me not knowing as a picture of the ignition switch ( would have to be labeled with #s ) , My ignition switch is different and works differently on my model XJ6 ( X300 )

 

Jmains123,

From the video, it's now clear that you haven't got an XJS. You have an XJ81, an XJ12 version of the XJ40 saloon car.

If you post in the appropriate forum, I'm sure the members will be able to help you. This is the XJ40 Saloons Forum:

https://www.jaguarforums.com/forum/xj40-xj81-25/

Good luck

Paul

 

No crank no start also no power to the dash

Passenger under dash

Passenger under dash

Passenger side right footwell
so I’m going to put in pictures of these things that I have found unplugged

 

Dead in the water right now I have no idea what you do it doesn’t crank or start the battery is completely fine I also have no power to my gauges gauges don’t move or anything at all please help someone

 

Hi Jmains123,

Welcome to the Jaguar Forums!. I see that in the last few days you have posted on this topic 27 times in multiple threads. This leads to confusion and duplicate effort on the parts of other members. From now on, please post all your questions and replies on this topic in this thread. I will try to merge all your other posts and other members' replies here so all that has transpired thus far is collected in this single thread.

Cheers,

Don

 

Don,

To add to your helpful intervention, the poster's car is NOT even an XJS. This is causing even more confusion

It is a V12 XJ40 saloon.

Paul

 

Thanks, Paul!

Moving this to the XJ40/XJ81 forum!

Cheers,

Don

 

Question is if a different transmission for the V12 in respect to if it has a rotory position switch ?

 

Oh that I’ve been gone and thank you guys for helping me out so much yes there’s a fuse relay G I don’t know how to check it to see if it’s working or not also use C3 is good and not blown thank you again

 

If you can find another relay with the same part # you can swap it like maybe a headlight, blower motor, ect .

The was a post on this relay that goes into detail back in my computer's history 3 days back so I need to find it

 

Starter relay location and test 93 xj40 - XJ40 - Jag-lovers Forums

Quate from the thread

Not according to my circuit diagrams. It is the 4th element of relay module ‘G’ (the one with the Blue base/connector) in that position which is the starter relay. It is energised when the the White/red wire from fuse #6 in the centre fuse box to pin 10 of the Blue relay connector goes to ground via the Green/orange wire from pin 19 of that connector. That Green/orange wire goes to the rotary transmission switch on the tranny and providing that switch is in the ‘P’ or ‘N’ position, the Red/orange wire from it to pin 47 on the Yellow connector at the CPU should go to ground if the ignition key is in the ‘start’ position III.
However, (there always is a ‘however’!), the CPU will not allow that circuit to go to ground unless the Brake Switch is ‘made’ indicating that you have your foot on the brake pedal.

BTW, I do not remember a “dash brake light” illuminating when I applied the brake on my car - only doing so if there was a brake fault. Does the stop light illuminate when you apply the brakes?

 

From a quick scan of this thread it seems to me that if the car has no power to the dash instruments and the starter isn't doing it's job I seriously doubt whether the starter relay module is the problem.

If the ignition isn't coming on, nothing else is going to work. Can you hear the fuel pump run when you turn the ignition switch to the on position? Any signs of life in the car at all? You could check the ignition on relay but I have no idea where that relay is located on the 12 cylinder. 12 cylinder documentation is sorely lacking AFAIK.


Has the car had an immobilizer/alarm fitted or has the button on the red switch in the footwell popped up? Just a few WAG's.

Larry

 

The ignition switch is key to having the most important power distribution relays to close besides the starter relay

The key is pin 5 and 6 which is a car frame ground that may have been disturbed

Look for 2 wires . Black / Pink ( 6 ) and Black ( 5 )

There is a ignition switch connector to test at leaving the key barrel alone