New to the forum, but not new to the car hobby at all.

Picked up a 2003 XK8.... my question is this:

If I replace the battery will the readyness codes reset? The codes were cleared by the PO shop before I bought the car and even after over 100 miles they have not reset yet. I am not worried about passing inspection I am sure there are no issues but I am still driving it so the codes will reset. I want to replace the battery, will that clear all the codes again and make me start from scratch on driving to have the codes all ready?

Also, I have the stock radio, will I need a code to reset the radio if I swap in a new batter?

Thanks very much.

 

doh reddyness = reddiness


LoL sorry

 

In answer to your question, disconnecting the battery will clear all of the codes.. You're referring to the P1000 code which will need to change to the P1111 code in order to pass inspection. I'm in the same position with a 2005 X-Type. Somewhere posted on this forum is a detailed and specific description of the drive cycle necessary to reset the code from P1000 to P1111. It's a royal PIA,, but just driving around may not do the trick. I see you're in Lower Merion. You might want to check in with the Delaware Valley Jaguar Club. They have a website where you can get more information.

 

Thanks for the info. My assumption was that just driving the car would not set the codes. I know from my Audi experience you need to drive and alter the conditions frequently. Basically rev the motor, change the loads by going up and down through the gears at different speeds etc etc.

Thanks for the local club heads up. I'll look into it right away. Much appreciated.

 

Oh, 'The Internet' can do better than the local club, at least for something like this. The six specific component drive cycles are in the "Powertrain DTC Summaries – OBD II" from 2003 linked in message 5. Alluded to in earlier DTC summaries, but not spelled out...

https://www.jaguarforums.com/forum/x...estion-117947/

 

Which monitor is not clearing? Do you have an OBDII tool, like a cheap ELM327? For my car, the component monitor takes a long while, the others clear fairly quickly...

 

I wholeheartedly agree that this forum is the very best source of Jaguar technical information. Clubs, such as the one I suggested, fill another need; that of hanging out with friendly and like-minded people and enjoying numerous scheduled social activities throughout the year.

 

To prevent readiness monitors from being reset, you can attach a battery maintainer or charger to the battery cables while the battery is being swapped.

If you have a readiness monitor that will not reset after 100 miles, there is probably an underlying issue. Do you have any other diagnostic trouble codes stored?

To expand on Dale's post, try following the Diagnostic Drive Cycles procedures beginning on page 4 of this document:

Jaguar X100 AJ27 DTC Summaries 2003

Cheers,

Don

 

Thank you for the tip, seems like common sense and I should have thought of that :-) ..... doh. No other code issues, and I am pretty sure there are no underlying issues.

Thanks again !

 

I struggled with comprehensive component not ready for 10 months with my 03 XKR. In New Jersey you can't pass inspection with any uncleared monitor, apparently most sates allow 1 or 2. I tried every drive cycle procedure I could find, with no joy, also had to replace battery during process which set me back to square one. I read every thread I could find with no definitive answer. Then I stumbled across a service bulletin issued out of Mawah NJ and turns out 03 to 05 maybe 06 too they changed the readiness monitors because of some recall on X type and soon did away with it because of complications.

i have the exact procedure saved on my old phone, not with me at the moment, but will post later. Very simple when you know how. It is connected with evap leak test. There are 2 but only one needs to clear to set all clear for evap test on obd II reader when checking if completed. However a second test has to pass to clear Comprehensive component ready. The procedures have to be completed within a short time frame. From memory get car to normal operating temp with the gas/petrol level 25 to 80 % full, middle is good. While warming to normal operating temp make sure to drive steady to avoid fuel sloshing around to much. Once at normal operating temp drive at a steady 35 to 50 mph for about 60 seconds. Come to a steady stop. Then put the car in drive on a nice quiet road and let your foot off the brake and let the care idle along without touching the gas or brake for 60 seconds. Then stop you should be done. I did mine watching the monitors live while driving, literally watched it clear, so simple when you know how and only took a few minutes

Now of course this is presuming all monitors are clear except comprehensive component, if not you will have to clear those first.

Will post exact procedure later but should work.

Good luck!!

 

By all means, please post that (and any other) drive cycles you've found. I'm struggling to clear the monitors on my 2005 X-Type and the CCM and one or two others just won't clear.

Thanks,

 

Comprehensive component flag 03-06

Evap test 0.40 in and 0.2 inch

Within 1 hour 24 mins

0.4. Idle / run for 12 min 45 sec 30 to 80 % fuel level.

Drive steady speed 8-50 mph for 50 seconds.

0.4 should be complete flag for evap will be off

for com component flag. 0.2 has to complete after 0.4 within 1 hour and 24 mins

Just let car run in drive at idle (less than 2 mph for 66 seconds (takes about a block)

Comprehensive comprehensive component will flag.

Let me know the specific flags you are having trouble with. There are several posts on here with the drive cycle procedures attached. I was always able to get the other flags cleared relatively quickly following them, just the comprehensive component would never flag.

 

Around here, 2 mph for 66 seconds is the most life-threatening part of the procedure...

 

Dale,

In the original DURHAM, getting above 2 mph is a rarity.

Graham

 

Yeah, pick a nice quiet side road or very large parking lot on a Sunday morning.

 

I used the attached drive cycle for both my XK8 & Audi A4 .

 

I have been unable so far to get the comprehensive component to report "ready" on my 2003 XK8. Seems like this happens every two years ... I get some OBDII code the month before inspection is due and clear that, but then I stumble around for a few months trying to get comprehensive to say "ready" Anyway, now I'm using the sequence posted below by SilverXKR03 and repeated here:

Comprehensive component flag 03-06
Evap test 0.40 in and 0.2 inch
Within 1 hour 24 mins
0.4. Idle / run for 12 min 45 sec 30 to 80 % fuel level.
Drive steady speed 8-50 mph for 50 seconds.
0.4 should be complete flag for evap will be off
for com component flag. 0.2 has to complete after 0.4 within 1 hour and 24 mins
Just let car run in drive at idle (less than 2 mph for 66 seconds (takes about a block).

No luck so far, which leads me to wonder if I'm missing some detail or doing something wrong. So I have these questions ...
- after cold start and driving for 12 min and 45 sec ... does the 0.40 inch test then begin automatically, or is there something I must do to initiate it? I've tried coming to a full stop but of course not shutting off engine.
- prior to beginning the 0.20 inch part of the sequence (66 seconds slow roll: no gas pedal, no brake), must/should the car be brought to a complete stop?
- if the first attempt fails, can I try again the same day by shutting off engine, driving for 12:45, and repeating the cycle (up to 1 hour, 24 minutes total engine-running time)?
- is there some important detail in doing this procedure that people tend to miss?

I'm stuck. Any suggestions much appreciated.

 

Hi Dennis,

I think the drive cycle posted by SilverXKR03 must be for the EVAP monitor, since it mentions leak sizes (the numbers should actually be 0.040 inch and 0.020 inch). However, it does not match the EVAP drive cycle in the 2003 Diagnostic Trouble Codes Summaries manual.

Here's what the manual has to say about the Comprehensive Monitor (which has to do with the engine and transmission management systems).



So in other words, Jaguar is no help, other than to recommend that we refer to drive cycle/monitoring conditions for any individual DTCs that could prevent the comprehensive component monitor from completing.

So that leads to the question, do you have any current DTCs?

You can download the DTC Summaries guide at the link below. The drive cycles are described on pages 4 through 8:

Jaguar X100 X103 DTC Summaries 2003

Cheers,

Don

 

Thanks, Don

No current DTCs. But comprehensive component stuck in "not ready".

I have two prior versions of drive cycles from Jaguar proporting to cover my '03 XK8. They are a bit contradictory and I've tried them both in the past when I had this problem, but neither would reliably fix it. Actually I can't say for sure that either had any efffect.

When the comprehensive monitor won't tick over to "ready" I'm under the impression it's very likely the .02 evap test that has not run. The drive sequence that SilverXKR03 posted is supposed to make that test run, but for me no luck so far. He seemed to find it to work reliably. That's why I'm thinking maybe I'm doing something wrong.

 

I believe the EVAP monitor must complete the 0.020" test in order to reset, so if your EVAP monitor is good, you may be chasing the wrong drive cycle. The documentation I've reviewed does not indicate that the EVAP and Comprehensive Component monitors are related or interactive in any way.

I don't know if a Network DTC could prevent the comprehensive component monitor from resetting, but it seems possible (say, for example, a CAN fault). Can your scan tool read U-prefix codes? Here's a link to the Network DTC Summaries:

Jaguar X100 X103 Network DTC Summaries 2003

Cheers,

Don