Jag S Type won't start,alarm sounds lights flash fault messages
Car is a 2004 Jaguar S Type 3.0L manual. when turning key speedo & tacho needles go round the dials, the alarm sounds, lights flash and fault messages incl parking brake faulty and rear lights faulty display on dash. I believe this is an intermittent fault as it happened before about 6 months ago - I called out RAC they got it started using jump leads. I have had battery tested it is in good condition.
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jaguar x-type 2ltr diesel 2004 the glow plug warning light flashing, was told dirty fuel on fault code all fuel changed and filters. No problems for 20 miles untill engine was put under power on high revs went into limp mode, warning light glow plug falshing again? any ideas thanks.
This would appear to be a immobiliser fault? Try a manual start - do not use fob, open door with key and immediately put the key in ignition and start the car. Using this method - when you open the door you will hear a chime this is counting down to starting the alarm. This method can sometimes get around a fob/immobiliser fault. If this makes no difference then you need to get the car checked at a Jaguar dealers for the security system. - good luck.
this happened to my jag and i still havent managed to cure it ,its a computer fault i know but it will no doubt cost more to buy a new computer than the car is worth and it happened at the same time as one of the blower fans packed up,i rewired both in the end but the alarm still doesnt work or make the chirpy bleep that indicates that it has locked and set the alarm.
This does not sound like a fob fault - but a locking control module fault , either in the hardware or software of the unit. Get it checked at a Jaguar dealers. When unlocking using the key - as soon as the door is opened you should hear a chime sounding inside the car - this is a timer counting down to sounding the alarm. If you put your key in the ignition as soon as you open the door the alarm should not go off and the chime should stop. If it does not this again points to a fault in the locking controller.
hope this helps - good luck.