My Mark 10 has an auto transmission, DG-150-M. There is part that sits right next to the speed hold solenoid that I do not know what it is. I have the transmission manual that covers this transmission but there's no mention of it. I would appreciate any info you can provide.

 

Ok, I traced the wiring and it looks it has got to be a fluid pressure sensor. It hooks up to the anti-creep device towards the rear of the vehicle. It leaks quite heavy and want to replace it but then again, how useful is the anti-creep device? I do not even know if mine works.

 

After further research, I found this switch that is listed as fitting the Mark 10:

SNG Barratt - The Ultimate Jaguar Parts Specialist

It does have three prongs while mine has two. Regardless, I think disconnecting this device would probably be to my benefit.

 

If your car does not creep forward while stopped with foot off brake pedal, it is working. Should release upon touching gas pedal. Look for switch near carbs.

 

I guess it never worked! I do not think I am missing anything...