Jaguar 2003 Xtype 2.5

 

A failed O2 sensor will trigger a CEL (check engine light) and set a P code that can be read by an OBD Scanner. A few more details about the problem you are experiencing would help with a diagnosis.

 

Yes of course. And may cause damage to e.g. cat conv.

 

Thank you. I was given the codes of P1582 and P1647. I was not given the code for the computer chip. My car is a 2003 Xtype 2.5. Any help is greatly appreciated. Thanks.

 

mlrsnipes, the P1582 is simply a message to tell the dealership that they can download some "flight recorder" information from your car to get more detailed information. In short, your car probably ran rough enough at some point that it triggered the computer to record your engine parameters to help the tech later. So, you can pretty much ignore this code and erase it after you get the other code fixed.

As for the P1647 code, that is relating to the HO2S 2/1 O2 sensor. What this means to you is that your bank 2, upstream sensor has more than likely failed (not an uncommon issue with the X-Type. This sensor is the one that is between the engine and the radiator. If you open the hood of your car and find the black box (air box) that says "Jaguar" on it, look just in front of it and down about 12 inches, you will see the sensor sticking out right there. To replace it, you simply unplug the connector feeding the sensor (located about where you would have put your hand) and then using an O2 sensor removal tool (if you need info on this, let me know, there are differences between the various kinds and some work better than others), you can spin the sensor out. Install a new one and all is good.

Just a warning, there are 2 different types of O2 sensors on the car. Normally they are referred to as an "upstream" or a "downstream" sensor. In your case, you are looking for an upstream sensor. If you need more help with this, let us know. Lots of us have had to replace the sensor.

 

The P1582 identifies a bad inertia switch. Does the car start an drive? If it does then it is from a previous condition and hasn't been cleared.
The P1647 indicates a bank 2 upper O2 sensor has failed. Here again if there is no check engine light and the car runs it could be an old failure. Normally repairing the O2 sensor would extinguish the check engine light.
If the vehicle is running well I would recommend clearing the codes and see if they return.
If the engine won't start or runs poorly get back to us and we can continue on for troubleshooting. We need a few more details to be of help.
Does it start? Does it run? How does it Run? Etc.

 

P1582 is not as far as I can see the inertia switch but is instead as already posted the "flight" data recorder.

Also, I would NOT clear the codes because as a side effect all the OBD monitors are cleared. Should any not set again you can get into a very nasty Catch-22 where there is a fault but the car can't flag the code and the monitor(s) never set.

Diagnosis is dire and if you need a smog or the like inspection it is liable to fail. (An old code with no MIL is not a fail.)

The car auto-clears codes that do not keep occurring.