Question about 2000 Jaguar S-Type

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Cats system fault

Hello, my jaguar s-type 2000 started yestreday with this warning about cats system fault. What is that. And how can i fix it?

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Posted on Jan 02, 2017

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SOURCE: On the 2000 jaguar s-type, what is, Cats system

Cats was a optional extra from the factory. It is adaptive damping. It basicialy softens or stiffens the shock absorbers to your driving style.

It may seem that one of your shock absorbers has developed a internal pressure fault. A local garage with a code reader can tell you wich shock absorber to check. Would be worth checking the electrical connectors that plug into the top of the shock absorber to make sure they are not damaged.

Look's like you may need a new shock absorber

Posted on Mar 06, 2010

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I have a 2001 Jaguar S-Type. Suspension is out & dashboard msg reads "CATS Systems Fault". Located the ADCM, but don't see any corrosion at connectors. Could fixing be as simple as replacing the ADCM?


the adaptive damping system, adcm. is linked to the abs system. it controles the valves in the shock absorbers to make the suspension hard or soft and i think it adaptes to how you drive. you should take your car to someone with suitable diagnostic equipment to get the fault codes out of the system, the problem is more than likely one of the shock absorbers. the system defaults to hard suspension when a fault is present and puts that warning on. hope that is helpfull.

May 17, 2015 | 2001 Jaguar S-Type

1 Answer

Cats fault and misfire wots the fault


have you got any fault codes out of the system? the normal cause of poor running and misfires are the on plug coils. the cat system will report a a misfire to the powertrain control module and that will flag a fault code for a cat problem. check the resistance of the spark plugs because if they are too low they can damage the coils and spike the powertrain control module.we used to change 6 plugs and coils for this very problem, very expensive. the lambda sensors are also troublesome, bank a easy, bank b, good luck. change the plugs and use jag recomended. the fault codes are the key to sorting it out

Mar 15, 2015 | 2000 Jaguar S-Type

1 Answer

When I start my engine a messages comes on the dash CATS SYSTEM FAULT


I don't know why you got shuttled to me. I'm sorry, but I can't help you with this problem. Re-post it, and ask for a Jag expert.

Nov 20, 2011 | 2000 Jaguar S-Type

1 Answer

My dash comes up with CATS SYSTEM FAULT plus the amber light is on.


Sorry, I can't help you with this problem. Repost it, and ask for a specialist on Jaguars

Nov 20, 2011 | 2000 Jaguar S-Type

1 Answer

I have an S-TYpe 2000 Jaguar 3.0 liter serial number 64909. VIN number - SAJDA01C6YFL64909 I would like to know how to find out if the vehicle has "adaptive control" shocks.


Very unlikely - the ''cats'' system was normally fitted to the top range type R or V8's I have never known a 3-0 with it fitted, To double check use your vin number on a spares site or jag dealer to ask what type of replacement shock is recommended. hope this helps

May 10, 2011 | 2000 Jaguar S-Type

1 Answer

On display it saids cats system fault. What is that?


One of the sensors in emission system is sensing a fault IE: bad converter, bad 02 sensor... Have a good shop read fault codes(OBII scan) to get exact problem addressed

Mar 05, 2011 | 2001 Jaguar S-Type

1 Answer

Cat system fault is on


replace the rear o2 sensors, or beat on the cat.. if it rattles inside there, it is the bad part. If the cat is bad, then check the engine out for the general state of tune. This is because if the engine is not running perfect, then the cat will take all the abuse.

Dec 22, 2010 | 2000 Jaguar S-Type

2 Answers

I have a 2000 tacoma 3.4l with double cats bought from california. I am throwing a P0420 code. Would that mean that my cats would be bad or the O2 sensor?


the code itself is for catalyst efficiency. however, the cats are monitored by the 02s. there should be some basic diagnostics performed on the 02 sensors before condemning the cats. monitoring with a scan tool, your front (bank 1) sensors should rapidly switch from .2V - .8V . this indicates that the engine is operating correctly. if the cats are functioning correctly, the rear (bank 2) sensor readings should remain fairly steady, aprox. .4V . this indicates the cat is working. if the rear 02's are a mirror image (or close to) of the front 02 readings, this indicates the cats are not performing their job, the 02's are functioning correctly, and replacing the cats will fix your problem. good luck!

Jun 26, 2010 | 2000 Toyota Tacoma PreRunner

1 Answer

On the 2000 jaguar s-type, what is, Cats system


Cats was a optional extra from the factory. It is adaptive damping. It basicialy softens or stiffens the shock absorbers to your driving style.

It may seem that one of your shock absorbers has developed a internal pressure fault. A local garage with a code reader can tell you wich shock absorber to check. Would be worth checking the electrical connectors that plug into the top of the shock absorber to make sure they are not damaged.

Look's like you may need a new shock absorber

Jan 06, 2010 | 2000 Jaguar S-Type

1 Answer

2002 Jaguar S type - CATS System fault


CATS System fault occure when oil is comming to combustion chamber and blow out into exhoust manifold becouse Valve seals is getting very old or oil rings is weak.

Aug 08, 2009 | 2002 Jaguar S-Type

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