My 3ltr s type jag v reg does it have a timing belt

P1797 = Neutral Switch Circuit Malfunction.
I am assuming yours is an automatic. On Automatics there is a switch on the transmission that can override the ignition to prevent the vehicle starting if it is in gear. This code is showing a fault in either the wiring to the switch or the switch itself.
This is one of those jobs which depends on where the switch is fitted. On some Jags it is fitted (hidden) underneath the battery box so it's not too bad to get to. However, some are mounted on the transmission housing in a typically silly location and it becomes a much bigger job. Personally I would suffer the pain of paying and getting a good mechanic to do it as they will have all the tools to deal with it quickly.

the 3 main issues with jag electronic park brake faults are 1st the sliders in the rear caliper frames sieze up which tells the park brake module that the travel is excessive and turns it off 2nd the wiring to the park brake motor chaffes on the rear subrame. 3rd the park brake motor fails. try a battery reset by disconnect the -v battery terminal for a couple of mins. reconnect and work parkbrake on/off to recalibrate, if it still comes on parkbrake failure then try the other poss faults, hope this helps

Remove cover under steering wheel

The jaguar gears get stuck normally if you're parked on an incline. Its a default Jaguar will not acknowledge. rock the car back and forth a couple times and it will shift. Hope this helps good luck!

Was looking at parts online and could not find a timing belt for the Jag. Did find the timing cover oil seal which makes me think it has a chain , not a belt so no worries. As always I could be wrong. The audi definitely has a belt , should be changed at 60,000 Miles / 100,000 Km. I have a passat with the 2.8 V6 and find performance is not great , nor is fuel economy.
The good and bad......... jag is newer , audi is lower mileage Both are slightly finicky and repair and maint would be more $$$ than more generic cars. Ignore carfax , it is an unreliable scam.
Take each to a mechanic of your choice for an inspection.
My personal opinion is it comes down to age. If you are over 45 go with the Jag , under 45 go with the audi. (lots of performance and apearance mods avail.)

yes they should be the same you will have to swap some of sensors though also before you put the engine in you should replace the timing belt and water pump

you probably need to service your transmission , replace clutches , seals and so on as slipping in one gear means clutch problem

I would use just power steering fluid. ATF can be used but has a tendincy to "clean out" and sometimes cleans out seals, causing it to leak.

It has a timing chain.

Hi Keith

Probably those little Jag gremlins at it again ?

First thing to do is clear the computers memory, which normally does the trick.

Disconnect both battery terminals, switch on the ignition to start 6 times, this wipes the computer memory, and then reconnect the battery, the Positive + first......... then the Negative -----

Start the car and go from there.

Suspect you had a low battery previously, and this tripped the warning.

Get the battery checked, if it is the original, as it is now 8yrs old, and should be replaced.


Good Luck !

A FixYa rating would be appreciated Thank you !

John.