My 2007 S-Type with 86K miles can not get a California smog certificate because the O2 Sensor is not reporting. There are NO LIGHTS ON AND NO OBDII codes. I have performed the Basic Drive Cycle (as per repairpal.com). There are no other issues.

Where do I go from here?

Thanks

 

Why did it get reset? That would normally only be done on fixing something so what was fixed/changed?

You likely have a fault, and that's likely to be related to something/work done.

Be aware that causing the monitors to be reset can leave the car unable to flag codes thus making it tough to troubleshoot.

 

This thread could be of help.

https://www.jaguarforums.com/forum/g...nitors-154680/

 

I just bought this car and I know that I can go back to seller to care of issue if I must but he says nothing done.

 

I ran into a problem that was similar. While living in Washington state, I purchased my '02 S-Type from a (non-Jag) dealer. The records showed the car came from Utah. It passed the WA smog check with no problem.

About a year later, I moved to Oregon and the car would not pass OR smog, similar to what you experienced. No check engine light or DTC codes. Per the OR report, the O2 sensors were not being monitored. This was all very mystifying, as the car passed WA smog just fine, but apparently their test is watered down.

I took the car to an independent Jag shop in Oregon. What they found was non-US software had been loaded in the PCM. Once they loaded the correct software, both cats were immediately flagged as bad, confirmed via other diagnostics, and had to be replaced.

The best we could figure was the previous owner knew both cats had failed. Instead of replacing them ($$$), he had the PCM reflashed to some non-US version that didn't monitor the cats. The shop was not able to determine much about the old software, other than it not US-spec. It may have been intended for some third-world country with no emissions testing, but that is just a guess.

Hopefully you aren't on the short end of some sneaky tactics like that. I'd suggest having a shop check the software version. Just brace yourself because there may have been an expensive reason why somebody would resort to such trickery.

 

I dunno if this is the same procedure as the other site has?
as per https://www.obd-codes.com/jaguar-drive-cycle

 

That's a bit different from the DC I had I'll try it. Thanks

 

It's not. The Jaguar one is as documented by Jaguar and in the free downloads on this site.

Generally, for a car without faults, typical driving is good enough, though for EVAP you need to stick to the stated ways.

 

What it meant was that the O2 sensor monitor was not set (aka complete). That does not mean the O2s were not being monitored. Rather, it means something is stopping the OBD monitor from running successfully through all its checks. Normally, and I think always, due to a fault.

Note that the O2 monitor did not unset itself. Usually someone caused it by clearing the codes (so what were they???) which also clears (unsets) the monitors.

It is never wise to clear codes without finding out the downsides.

 

Just a bit of correction?
Might help others.

The problem is the readiness monitor for the O2 sensor is not set. This does NOT mean the O2 sensors are not reading or reporting. They are or you would be getting additional O2 senor codes. Your not so for now assume the O2 senors are working OK.

There are 5 monitors that need to be set and then you will see P1111.

Anytime you clear your codes P1111 will be reset to P1000. There is no error it's just telling you the PCM codes were cleared and the car has not been driven enough to reset the readiness monitors.

As you have found out there are driving procedures or cycles published to tell you how to get the monitors reset. BUT I have driven for weeks on end sometimes before I could get code P1111 back.
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Still wondering why the poster's codes were cleared and what the codes were, as they'll be the best clue going.

 

Don't know the cleared codes because a likely crooked seller (who will pay) set them.

 

You may (very unusually) well be in Catch-22 where it cannot set codes or monitor(s). If the seller has caused it, as it seems, there's your fix.

If you wish it fixed otherwise, I'd say you need to be an (OBD/jag S-Type) expert or find one.

Also, explore your local laws in detail as you will need every bit of knowledge there is.