1995 Jaguar Vanden Plas must be shorted to provide power to starter solenoid to start
 

My car is a:

Year: 1995
Make and Model: Jaguar - Xj6 Vaden Plas
Location: Oklahoma

I find that the car can be started if a short if formed giving direct power to the starter solenoid.

The car can but put into gear by accessing the screw terminal near the gear shift.

Welcome to the forums bshambaugh,

I've moved your question from General Tech Help to X300 forum. Members here with the same model will be able to help.

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

Hi bshambaugh,

Welcome to the Jaguar Forums! It's great to have you with us.

The starter control circuit includes the ignition switch, Body Processor Module (BPM), the Park/Neutral switch (in the rotary switch on the left side of the transmission), and the starter relay. Your issue could be due to a problem with any of those components, the associated fuses, or the wiring in between.

The starter circuit schematic is on pdf page 43, which you can download at the link below courtesy of our member Gus:

Jaguar X300 Electrical Guide 1995

A logical diagnostic approach would be to use a standard voltmeter, begin at the starter control wire, and work your way upstream until you find the component that is not forwarding voltage when the key is turned to the Start position. However, since the Starter Relay is easily accessible in the group of relays near the air filter housing, it would be worth first swapping in one of the nearby similar relays to see if the starter will then work correctly. Here's the location of the Starter Relay:

https://cimg1.ibsrv.net/gimg/www.jag...3cb3912802.jpg

If swapping relays doesn't work, you could check for correct voltages in the relay socket and if you find a problem, check Fuse #3 (25A) in the Left Hand Engine Bay Fuse Box, which provides constant battery power to the Starter Relay, and Fuse #12 (10A) in the Right Hand Engine Bay Fuse Box, which provides the temporary Ignition Switched voltage to the relay when the key is turned to the Start position.

You may find similar symptoms and possible resolutions in this thread compiled by our member aholbro1:

https://www.jaguarforums.com/forum/x...-120221/page2/

Please keep us informed.

Cheers,

Don

I swapped the heater pump relay for the starter relay and the car started and drove. Thanks Don.

** I put a generic 4 pin relay in the heater pump relay slot. I am ordering a new relay
https://www.ebay.com/itm/Multi-Purpo...-/223300274781