Picked up my dad and nephew to head to Brands Hatch this morning. Got all these warnings on dash, might of been some more.
Had to go home and get dad's XKR, haven't read the codes as car is at his house.

Search seems to suggest water ingreeinto throttle plug. Or parkbrake module fault. Any experiences please?

The S Type R has only just come off the naughty step after the following going wrong.....

top charger pulley nearly coming off( new pulley fitted )the
HID failure (new second hand lamp fitted)
SRS light on ( cancellation cassette )
Reverse aid stopped ( 2 new sensors)
heater valve stuck ( new valve repair climate control module )
powerful mirror not folding ( strip mirror clean and lube )
transmission fluid and filter change .

I'm an ex jag tech so do all my own work otherwise it would of bankrupt me.

any thoughts ?

 

Test battery, check connections, look for water in the boot.

 

Simple, how old is the battery?

 

Like the others have said already load test the battery.

 

I'll jump on the battery bandwagon, too. No guarantees, but as such a common issue, it's well worth investigating. I keep thinking it would be helpful to compile a list of success stories on the matter, but I'm lazy and subject to inertia. So you'll have to settle for a half-assed version. Maybe one day I'll put forth the effort and do a full-assed version.

From the How-To section at the top of the forum, here's a good starting point:

http://download1510.mediafire.com/ze...ype+Jaguar.pdf

Some good info in this thread, specifically post #22:

https://www.jaguarforums.com/forum/s...oltage-179828/


More here:

https://www.jaguarforums.com/forum/s...?highlight=Dsc


On a side note, details of a battery's oft-overlooked function as a capacitor, from Motor magazine:

https://www.motor.com/magazine-summa...tery-of-tests/


Those links should make for some interesting reading. You could also search the S-type forum for "DSC" and see what a common fault this is. When combined with certain other faults (parking brake, etc.), a new battery is the most common fix.

 

Thanks guys. Will check battery. Would it do this after the car had been running for half an hour ?

we had lots of rain yesterday.

 

Battery failure can happen any time, any place . . . even known that some have been u/s as new replacements. The links given by Karl and others here are to writeups drawn from many hundreds of similar posts across 4 continents . . . all serving to underline the fickle requirements of (it appears) S-Types (and perhaps contemporary XJ and XK8/R) to ensure standing battery voltage of 12.6V minimum.

That said, stories of rain suggest careful attention to boot well area around distribution & fuse boxes. Leaking boot rubbers can play havoc with sensitive electrics there.

Cheers,

Ken

 

More or less pray it's the battery as finding a water intrusion problem can be painful.

 

As usual, I'm a day late and dollar short. This thread addresses the exact subject matter:

https://www.jaguarforums.com/forum/s...ype-faq-123983

Specifically, see post #8. A known bad battery was purposely installed in a car that had been behaving. The car started just fine but now misbehaved with the World-O-Faults on the dash. A good battery was then installed and all was good.

Is a new battery the fix all the time? Of course not. But judging by experiences reported in this forum, I'd certainly gamble on one before digging too deep elsewhere. And since a battery has a finite life and is guaranteed to require replacement eventually, I wouldn't feel bad if it didn't fix the problem.

 

Battery tested ok. Load test ok, requires charging.

Read fault codes throttle position fault code.
12 other codes logged in various modules.
Removed TPS plug to find Jaguar's advanced water cooling of electrical connectors. Dry off and applied electronic lube.
cleared codes and tested today. All ok so far.

 

After drying the TPS consider wrapping connector with gaffers tape as suggested on this forum. Also make sure the rubber seal at base of windscreen is tight against glass.

 

David h which seal? Any pics. I seem to remember a TSB about water into connectors in this area.

 

Is this is?

http://www.jagrepair.com/images/TSB/...n%20Sensor.pdf


I found it in this list of TSBs by searching for "water":


JagRepair.com - Jaguar Repair Information Resource


It's TSB S303-S159. For the "sealing patch", it looks like you could use some good waterproof tape. I bet the metal tape used for HVAC ducting would work well.

Great find on the wet connector, BTW. Fingers crossed you've got a good fix.

 

Sorry I do not have pics. When water runs down the windscreen glass it needs to be intercepted by the cow/rubber parts so as not to threaten the TPS. On mine, I had to replace the screws left off by the recent glass replacement technician.

 

Hi all,
First of all, please forgive me for my english.
With my S-Type R (MY 2006) I have undergone the same "engine system failure, DSC and parking brake not working" problem associated with reduced performance. I tested my battery with usual non-professional means, and the voltages (contact off, upon starting, upon idle, etc...) were in the high-end acceptable ranges. I changed the original intercooler cooling pump by a more potent one (higher flow)... It should improove supercharger cooling, which is not a bad thing, but did not solve the problem, which occured always during the same itinerary, at nearly exactly the same place. To my mind, that (with my own battery tests) excluded the battery as the culprit...

I went to my jag dealer to perform an ODB diagnostic, along with an extensive battery test (which took one hour and an half with a big electronic device...). Both diagnostic tests independently pointed towards a battery failure. Battery has been changed, problem solved!

A long story to point out the limits of home-made battery tests, and of own logics for solving this sort of issue...

Hope it helps.

Best regards.
Luc

 

good information