My wife is seeing how stressful it is for me to run drive cycles night after night trying to clear a P1000 code. The only time I can find clear and safe highways to run the full drive cycle is at 3am here in Southern California.
So, she said I should ask if you guys know of exemptions that can apply to cars like my 2001 XK8 Coupe. Never hurts to ask.

 

Which OBD monitors are still unset (aka not complete)? They are your best guide to what may be wrong.

Also, why did P1000 occur? Have you cleared the codes or what? If so, what were the codes?

 

If it happens to be your lucky day this TSB procedure might be helpful. Not something I've had to try for myself, so can't vouch for it.

http://www.jagrepair.com/images/TSB/...CM%20adapt.pdf

 

Move to Florida.

 

That is very interesting. Worth a try today. THX. I'll report how it went.

 

LOL. May have to.....

 

The engine light had been on for a while now, and my Smog Cert was due on Sat (yesterday). So, I took it to my Jaguar Dealer (Hornburg Sant Monica) on Monday. They traced it down to a tiny plastic part they found doing a smoke test. It was replaced, and I was on my merry way (they did several regular maint items as well). Before the repair, I couldn't figure out where the fumes were coming from. All better now.
Tuesday, I took it to be smog tested, and it did not pass due to a P1000 error. More specifically, it says "Catalyst Monitor Incomplete." Wednesday, I drove it up and back from LA to SB (180 miles total). Et voila, . . . . . Catalyst has been completed and passed according to the BlueDriver OBDII device I put in. But, it still shows P1000 "Comprehensive Component Test is NOT complete."

This is the procedure I've had success with in the past. Drive Cycle (OBD-11)
A “drive cycle” carries out EPA diagnostics on all systems.
The drive cycle can be completed in approximately 15 – 20 minutes and is performed in the following 8 stages:

1. Cold Start
To qualify as a “cold start,” the engine coolant temperature must be below 0°C and within 6°C of ambient air temperature. Don’t leave the ignition key "on" before the cold start, or the heated oxygen sensor diagnostic test may not run.
2. Idle
The engine must be run for two and a half minutes with the air conditioner and heated rear screen ON. The heavier the electrical load, the better as this will test the O2 heater, Passive Air, Purge "No Flow," Misfire, and (if closed loop is achieved) Fuel Trim.
3. Accelerate
Turn off the AC and all the other loads and apply half throttle until 55mph is reached. During this time, the Misfire, Fuel Trim, and Purge Flow diagnostics will be performed.
4. Maintain Steady Speed
Maintain a steady speed of 55mph for 3 minutes. During this time, the O2 response, EGR, Purge, Misfire, and Fuel Trim diagnostics will be performed.
5. Decelerate
Liftoff the accelerator pedal. Do not shift the gear selector or touch the brakes. It’s important to let the vehicle coast, gradually slowing down to 20 mph. During this time, the EGR, Purge, and Fuel Trim diagnostics will be performed.
6. Accelerate
Accelerate at 3/4 throttle to 55-60mph. This will perform the same diagnostics as in stage 3 above.
7. Maintain Steady Speed
Maintain a steady speed of 55mph for five minutes. During this time, in addition to the diagnostics performed in stage 4, the catalyst monitor diagnostics will be performed.
8. Decelerate
This performs the same diagnostics as in stage 5. Again, don't shift the gear selector or touch the brakes.

If the catalyst is marginal or the battery has been disconnected, it can take 5 complete driving cycles to determine the state of the catalyst.
I've run this Drive Cycle about 6 times now. Two to three times a night.

Very tired,

 

No joy. Very sad.

 

On my 2002 XKR 100 I drove the cycles many times and still had the cat monitor incomplete. What finally helped, though it could have been coincidental, was to turn off Sport mode and drive another 100 plus miles. Then it cleared. It is definitely a PITA, though it will eventually clear.

Bill

 

No need to go so far as Florida, just one over in Arizona and your problem would be solved.

 

I'll Try It !!!!

Did you drive in traffic? or did you find a hundred maile stretch of highway?

 

Although the P1000 will eventually set to P1111 in normal driving provided there are no faults present, it's neither the quiickest nor most efficient way to complete the monitoring tests.

The attached summary lists the procedure for each test. This avoids carrying out a full procedure if only one test is incomplete. It is not an exact science and a number of repetitions (up to six) may be required.

Graham

 

2006 XK8 with 121,700 miles....

I had to clear the Comprehensive Components readiness monitor in late December. Here is how I managed to do it:

- The fuel level must be between 30% and 85% full.

- Start the engine from cold and allow it to idle for at least 12 minutes and 45 seconds.

- Drive the car maintaining a speed between 8 mph and 80 mph for at least 50 seconds.

- Coast to a stop and allow the engine to idle for at least 66 seconds.


Finding an empty stretch of road is the biggest challenge. You do not want to get rear-ended by a semi during the coast-to-a-stop portion of the drive cycle.


Good luck....

 

Jon,

According to the Jaguar DTC lookup there is no single Comprehensive Component drive cycle. Monitoring completion is achieved by completion of the 5 individual drive cycles.

COMPREHENSIVE COMPONENT MONITOR ENGINE MANAGEMENT DRIVE CYCLE
To avoid unnecessary complexity, a single comprehensive engine management drive cycle has not been developed for XK-TYPE. Refer to the individual DTC for specific
drive cycle / monitoring conditions.

COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
To avoid unnecessary complexity, a single comprehensive transmission drive cycle has not been developed for XK-TYPE. Refer to the individual DTC for specific drive
cycle / monitoring conditions.

Of course, you can roll all individual requirements for the 5 cycles into a single activity session.

Graham

 

Graham,

I realize that Jaguar does not specify a Comprehensive Components drive cycle to clear that particular readiness monitor. Nevertheless, I managed to clear it in late December driving in the manner I described above. I know that every car is different and what worked for me in late December may not work for me (or anyone else) next time. But it is certainly worth a try....

 

I was gobsmacked a while back to find that though all the DTC documents say this, it appears to be not true in that the comprehensive component monitor for the engine is completed in many cases before some of the others. Sometimes this happens long before the others. I believe this is confirmed in one or other of the Engine manuals, but I have not been able to find the reference quickly or the other thread in which this was discussed.

 

In the case of my wife's 2006 XK8, the Comprehensive Components readiness monitor has ALWAYS been the last one to clear....

 

Found it. Was in a letter from Jag to US state emissions people, specifically includes X103. #84 in this thread

https://www.jaguarforums.com/forum/x...-235038/page5/

Right now, on one of my three, catalyst is not cleared, components is (good to go for NC emissions testing if it hadn't aged out of the smog test). Odd in any case, but I think the basics of these things changed rapidly between the initial design and 2006. ODBII only became mandatory in 1996 in the US, and there was a huge change in Ford CAN around the 2003 MY.

 

Strangely it was not a issued as a TSB but as a letter. However, the latest revision of the Jaguar DTC lookup is dated 2003 which precedes this letter.

Graham

 

It does look to be a real foul up, because the various PCM (aka ECM) PDFs go into much detail about nearly everything except the Comprehensive Components Monitor (despite being 113 pages, 119 pages, 152 pages etc).

It's still on there (Search on Jaguar).

When I first found that TSB it was on www.obdclearinghouse.com as Jaguar_32-Bit_ECM_Readiness_Setting_TSB_021210.pdf and I was only looking for S-Type info.