Question about Jaguar X-Type

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Jaguar x type 2002 heater blower starts going on max even if car is switched off and locked. flattens battery overnight.

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  • porterr2 Apr 15, 2009



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Its the problem of FSU in your car.its called --Final Stage Unit--- The part cost £59.50 which seems about right.
get it done by a technical repair person.its not a do it yourself job. thanks.

Posted on Apr 15, 2009

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Do a 2002 s-type jaguar have a onboard computer ?

Looks like you have two questions in one:
YES - the 2002 S-Type does have an onboard computer system however it is extremely hard to avvess on your own. Most any Jaguar service center can probe the system to find where your power drain is but it is usually quite expensive to have it done - on average between $150 & $200. H8wever, it will give you a complete breakdown of everything that is wrong.

Yes - if you lock your doors on the 2002 the passive security system engages no matter how you lock them. The system can be defeated or disconnected by a service center or dealer but it is such a low power drain that it shouldn't have enough of a drain to affect the total power of the battery over a month long time much less overnight. Most likely th drain is from another source.

Sorry for the bad news but that's all I have without knowing your individual car better. All the 02-03 S-Types have frequent electrical problems - it's their chron

Jun 24, 2014 | 2002 Jaguar S-Type

2 Answers

My jaguar got hit and after that i try to start it and it says security failure.what should i do ?i need help.thank you

It is likely the fuel pump safety switch, search for a solution online but, some0most cars this happens to after an accedent for obvious reasons. Probably not a big deal, the dealer of a shop may even be able to help over the phone or even maybe just disconnect the neg. battery terminal and this may reset it. Good Luck

Apr 29, 2012 | 2002 Jaguar X-Type

1 Answer

2000 Jaguar S type 3.0 Blows only cold air on full heat. Just replaced heater control valve with no change. Also flushed and replaced thermostat. Car operating temperaure is fine. Both heater hoses are...

Check the little pump below the brake booster for running and the coolant valve for movement.

Both hoses to fire wall should be hot.

Check for air lock in system.

Blend doors on this vehicle stop working....common complaint.

To verify Blend door movement, turn on ignition with engine off.

Run temp to max and the min..... listen under glove box for ( sliding ) motor noise as door swings from hot to cold.

This is a digital system needing a Jaguar scanner for diagnosis.

Jan 16, 2011 | 2000 Jaguar S-Type

1 Answer


Make sure your cooling fan isnt coming on after the car has been parked up for a few hours, this will flatten your battery. Yeh.

Oct 07, 2010 | 2004 Jaguar S Type

1 Answer

1999 A6 Avant 2.4. Windows come down (and flattens the battery even when left up overnight) when opening or closing the car with the key button. When driving along there is a repeated noise like the...

try this,with the key,unlock/hold key over for 30 secs (windows will go down) .then lock/hold key over for 30 secs.(windows will go up,then lock the car with the remote,you have just reset the autoclose facility inside the computer.may help!!

Apr 06, 2010 | 1999 Audi A6

1 Answer

My fan heater only works on the highest setting 6

Hi. This will be the result of a failed resistor switch. the switch controls the current level sent to the blower motor. Once replaced, the motor will operate at your desired rate. This switch is an integrated part of the AC/Heater control cluster, that is mounted in your dash. You will need to remove the trim, and cluster assembly to expose the damaged switch.

Dec 04, 2009 | 2002 Jaguar X-Type

2 Answers

2002 jaguar x-type awd

Had the same problem, it turned out to be the sensor switch on the transmission. I was also told to disconnect the battery overnight so all can reset but that did not help in my case.

Aug 27, 2008 | 2002 Jaguar X-Type

2 Answers

Ignition failure


Aug 04, 2008 | 2002 Jaguar X-Type

1 Answer

2002 Jaguar X-Type

If your battery is older, it may be leaking acid... which goes right down to the negative connection wire.... if that eats throught then you have no circuit.... happened to my car. Go take a look at your battery cables.... also, check the battery fluid levels... even though you hear it is a maint. free battery - sometimes you still have to add water now and then!

Jul 08, 2008 | 2002 Jaguar X-Type

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