this light came on this morning, then went off 10min later... i checked for codes and there were none??? wtf???? any clues where to start looking? i read and searched but am stumped

 

Try doing a hard ECU reset, and scan it again if you get the restricted light.

 

How did you check? Which OBD device? Which software?

 

Go to your local Autozone, PepBoys or Sears and get the codes. Write them down and then tell us what codes you have.

 

launch and a snapon, no codes

 

Hard to say without the codes. Did this occur just after a fill-up? If it did check your gas cap!

 

Some faults will put the light on but not store a code in the PCM until they keep happening. Any pending codes? Also, do you have P1000 or P1111?

Were those tools WITH Jag-specific extras or just generic?

 

wrong thread

 

not jag specific, checked again no codes

 

ok got codes, u2518 u2510 b1318,u2521,m b1317,u1900, u2197, u1246, u2511, p1582, 1699 and there is no light on!!! the ac only blows cool from drivers side 2 vents, and warm from the other 2.. i dont know whats up help!

 

With so many codes I'd say #1 suspect by far is battery. Next is alternator (not cheap & rarely fail) or wiring (much cheaper to check).

 

+1 on the battery!

 

Did you look the meaning of these up... BIGGEST hint it is the battery is when there are a bunch of codes that don't make sense..IE the car drives just fine yet you have codes related to miss fires / trans issues / and so on..

 

the car ran fine last nite, the battery was replaced 1 1/2 years ago... if i put another in do i have to relearn parking brake and windows, navi ect stuff?

 

If you put in the right hefty battery it shouldn't have failed so I guess start looking all over the car for wiring issues / test the alternator / etc. Or it's the battery. Try handbook for what you asked

 

Is the car running now and do you experience any problems? If no problems I would reset all your codes (now that they are documented) and see what comes up. I would check the battery connections to be sure they are clean and ok. All the Jaguars suffer from a slight to severe case of Poltergeist mostly caused by poor electrical connections. If the car gives you any indication of a problem then you will need to investigate. Until then sit back and enjoy the ride.

 

I would check the fuse on the S/C intercooler pump. Same thing happen to me on my xkr--no codes thrown but would go into RP after sustained load on the S/C. Found out my I/C pump was broken. Good Luck.