2005 s type with 4.2 and 68,000 miles. Engine light on dtc p0300,p0301,p0302,p0302,p0303,p0305,p0316,p1111 iat intermittent high . Car starts fine and drives fine not in limp mode but has slight what feels like rough idle but not real bad if that makes any sense.battery is original but starts car fine . Voltage was 12.03 seems low please help cannot afford to take to shop .Tia

 

"Old batteries with low voltages give codes."

I would suggest you invest in a good new battery and watch your codes disappear.

have read at the post below and see what you think your issues are.

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

a good start anyway?

 

Thanks for quick response. Bought new battery but engine light still on however it seems to run well. It is my wife's car so I'll have her drive and tell me what she thinks . Any other suggestions would be greatly appreciated. Tia

 

Now bring it to a local AutoZone, or similar chain retail parts shop and have them clear your codes with an obd reader. Drive car and see if codes return, or remain cleared. Good luck!

 

There is legislation underway that will require any "code clearing" to be registered with the EPA before the code can be cleared. This prevents any code clearing, then running to get an emissions test, then the code reappears.


Most shops will no longer "clear the code" but, heaven forbid, require that the problem be fixed.


The new cars will have a passcode that ties back to the VIN and can only be cleared if the problem is registered and then that code will clear the code one time and one time only.

 

I'm going to buy a scanner and clear the codes myself because I don't think parts stores clear them anymore. Any recommendations on scanners would be appreciated. Tia

 

Take your pick from the below thread, then e bay, google for price.


https://www.jaguarforums.com/forum/g...-%2A%2A-33347/

 

Install "Torque" App on your smart phone for $5, and purchase an OBDII bluetooth sender either from Ebay, Amazon ( Mine cost $15), or as recommended in the App.
I read and clear codes without any issues on 3 different Jags.

 

You can't clear the codes and run to get an inspection test in any half-way clued-up jurisdiction because they check the OBD monitors have set, which they won't be, because clearing the codes also clears the monitors.

 

Wonderful forum you have here I thank all who have helped. I'm doing my research on a scanner to clear these codes. My progress on anything of late is slow since I started taking care of my father care taking is difficult but rewarding. I hope to keep updates until problem is solved because I hate when I read forums and you never find out the end results. So thanks again and have a good day.

 

Understood. ...And just to be clear you will note that is neither what I said to (try) to do, or implied!

I think this thread somehow morphed down this trail only due to some's observance that the chain auto-parts shops will no longer just routinely clear your code(s) for you, for fear/purposes of at least making it also from their perspectives, not appear to be a "sanctioned" event (attempt) routine. There is absolutely nothing wrong in doing this properly however, and my experience is still that a local "AutoZone" (for instance) absolutely will assist - if and so long as you can show that you've taken VALID diagnostic & corrective measures... As our OP to this thread I think now has shown, that he clearly has!

Also - because it takes @ 1 week of routine driving for the OBD monitors to re-set, as you note - - - takes care of any nefarious purpose motive exposure in of itself - which again... if you all re-read my post above, was not even remotely implied.

 

I am not sure how to read this but when you clear your codes you will get a P1000 that code means your on-board diagnostic test have not been completed and with that code the car will not pass the emissions testing. After driving the car for several miles (I do not know the exact mileage) the code will change to P1111 this means that all on-board diagnostic tests have been completed.

So to say they are going to control the clearing of codes makes no sense because the system is already protected.

Another stupid thing that they spend useless time on that is not necessary. You got to love the system!

 

Correct. The absence of P1111 will result in an instant fail during a smog test.

 

I have not seen a car that doesn't show readiness after 2-3 miles of driving, tops. Some codes only set after a certain number of conditions are repeated. One such code is the P0410 code for catalyst efficiency. An old trick is to reset the code compliments of your local chain auto parts store, then run and get your emissions tested. No codes, no problems. With the advent of passcodes and EPA oversight, only a registered shop will be able to call at attest that the problem has been repaired.

 

Sorry, won't work on an S-type. The car will NOT set P1111 doing what you describe. Been there, done that.

 

I disagree.

 

What you mentioned works on an OBDI car, not on OBDII like our S-types. Jaguar describes in detail the drive cycle the car needs to be put through to get the monitors to reset and register the P1111. It's a lot more than 2-3 miles of driving.

 

You don't seem to know S-Types very well or at least lack experience, posting that.

 

OBD II showed up in some 95 model vehicles and all 96 and up. I know the difference.

 

For those that still believe they can fool the system, here is an excellent post by Graham illustrating what is required to set the monitors in order to pass a smog test

https://www.jaguarforums.com/forum/x...ection-123700/