Hello everyone new to this very interesting site was hoping someone can help me to obtain a Linear switch for my 1995 xj6 3.2 as mine is playing up !! i was thinking about bypassing it completely but nobody seems to know how who ive spoken to but would rather this parts replaced if honest so Please Please can someone help a desperate man who wants to drive his Jag down here in Cornwall

 

tHE LINIER SWITCH BOX CAN BE REMOVED , OPENED AND THE DELIATE FINGERS LEANED WITH AN ERASOR

hARD TO GET OUT BUT NO ADJUSTMENT

Cat

What are your symptoms ?

There was a upgraded part #

 

Hello and thank you for the reply my symptoms are it doesnt light up on the P or the N so wont crank over unless i tap it push it down so thought is it possible to bypass altogether or just buy a replacement

 

Hello is it possible to bypass it altogether do you know if not do you have details on how to get this working right again sorry for all these questions but i just hate it not working right as i think this car is fantastic !! not pretty but fantastic in my eyes

 

So let use focus on the starter rotation first

The body processor module sums some agreements and then it ( BPM ) provides a ground to close the starter solenoid relay for starter rotation

Your 3.2 liter with the slightly different transmission does not have a rotary switch on the transmission body itself but is like the V - 12

Looking for picture of print I made

This will be a pic of the more common / similar 4.0 liter same inline 6

Notice the linier switch ( ? )

 

Right this looks way way to complicated for my simple mind im afraid im guessing its going to have to be a change the switch linear switch time !! man that looks complicated

 

To know that you have all the agreements for starter rotation the starter solenoid relay ( large left # 4 ) must click closed by key in start position

You have to put your finger on it instead of listening as other relays in the area will click



Your 3.2 liter starter circuit ( linier switch should be in there ) will be on page 48 and will look at the jumpering of the linier switch

jagrepair.com/images/AutoRepairPhotos/jagxj1996.pdf

Red / Blue wire must go to car frame ground

 

well first of all thank you so much for taking the time for all this info butthe switch down my the gear lever is where my problem lays no question about that, so this last image you sent is that explaining how to bypass the switch all together or explaining where a relay for the switch is, i did say complicated didnt i !! . so am i right in thinking find that relay earth it out to the car body and that will bypass the linear switch or have i got this 100% wrong sorry for my ignorance

 

The Red / Blue wire on the linier switch to car frame ground is your jumper

The only relay is the starter solenoid relay under the hood

You can keep the jumper wire on the Red / Blue wire and drive the car , just don't start it out of the park position

Keeping the jumper installed and connected will not drain the battery

Since you will later be removing the linier switch ( fun rear bolts with a torque bit set if I recall , look first ) you can open the switch and clean with rubbing alcohol and later a pencil eraser . give the delicate fingers a slight twist to make better contact

The upgraded linier switch may be hard to find in a salvage yard on a donor car ( if it's been upgraded , or the reason the car is in the salvage yard , look for wreck as reason for being there ) ) but here are some numbers

Item 29

You have the ZF4HP22 transmission on the 3.2 lier X300 which you will notice it does not list so it is the wrong XJ model and not X300

Genuine Gear Change Control-automatic (6 Speed Auto Transmission Zf 6hp28,6 Speed Auto Zf 6hp26 Steptronic,automatic) For Jaguar Xj 1995 - 1997 (from 720125 To 812255) (x300) Classic | Jaguar Land Rover Classic Parts

So your easiest bet is to clean inside the existing switch ( drink spills )

Same amount of work to remove and clean the linier switch as the jumper makeup

 

hank you so so much i will look for that wire tomorrow after i buy a new battery for the jag the wire is down by the switch im guessing and do i just splice a earth wire in to it if i read this right i will let you know tomorrow thanks again Parker 7

 

Do not install new battery in backwards

You can jumper to Black wire ( car frame ground ) with a paper clip on the same connector as the Red / Blue wire at the linier switch

So the paper clop would be from Black to Red / Blue

The Black wire will be in one of the corners of the connector as the # 1 position

 

dont think i would make a mistake of putting the battery in backwards, so a paper clip wire from earth of car body on to the connector red and blue wire which i assume is a earth anyways im just improving or making a full contact do i have this right mate sorry for all these questions, you wouldnt think it would be so hard to buy another linear switch as there were a lots of these jags made for sure

 

You can take the paper clip from the connector on the linier switch that has the Red / Blue wire to the same connector that has the Black wire

The Red / Blue wire will have power on it ( this should be key position dependent ) and is ground seeking to make the starter work

You can order a linier switch from a salvage yard with the pic above from Mark Oliver or E - bay

Whether the donor switch works or not is a craps shoot as that part has not been tested or new

There is a device in the dash above referred to as a linier something that is an enable for the ignition switch chip in key

So the location pic is important

 

I will attempt this tomorrow and let you know how i got on Fingers crossed i get it right !!!

 

Hello Parker 7 thank you so so much for all your help i done what you said regarding the wire from red/blue to earth its working fine so thank you mate thats brilliant i just cant thank you enough regarding this