Code u0447 showing. I believe it's a generic code.
I attached some OBD2 readings for the chance someone can decipher my problem. Thanks guye

 

^^2013 xjl portfolio 5.0 n/a

 

any luck getting this figured out?

 

u0447 is "Invalid Data Received From Gateway "A" - Invalid serial data received". The service manual goes on to say "The LIN to high speed CAN gateway has informed the engine control module of a failure." So, in short, you have a few data busses in the car. There are points where they cross over to exchange information. In your case, the LIN bus cannot talk to the ECU on the high speed CAN Bus. Now, this error is relating to the passive anti-theft system. So, not sure if this is going to help you narrow things down any. What you really need to do is connect the car up to a higher end code reader (probably one specifically designed for a Jaguar) as you will also find that the code will reader "U0477-XX" where the XX is going to be 2 numbers. This is going to point point the problem almost to a specific component as it is more detail about what the problem is.

Just to ask a probing question, have you had any work done in the dash recently? If so, I would start looking in that area first as that is the most likely place that you will find a problem.

 

Have you seen this thread?
Seems to indicate a problem with the start/stop system?
Not sure about that?

Start/Stop

Might also be caused by a low voltage condition.

But clear the code and drive some more to see if it repeats. Several cases of this just being a random code too.
So it might not be anything since you don't say you have any actual problems with the car?
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hi
i have same code on my jaguar, related to echo dash light always on.
jaguar dealership told me i have to replace the secondary battery

 

Did you read the link I posted?
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Yes that's the code.
Is your stop/start system working?
Have you changed or checked the start/stop battery?
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I apologize for digging up an older thread but I'm facing the same issue with the code Invalid Data Received From Gateway A. I have sdd and it gives me code U0447-00 PCM but when I click on the information icon there is no other info and I can't find anything on the web or in my many workshop manuals about this. I see that there was talk about the second battery or low voltage. I've had my second battery disconnected for a while now and my main battery is always fully charged at 12.80 or I hook the trickle charger up to it and furthermore this code triggers the MIL to be illuminated

 

no1, well "00" is not of any help as that is the default number that it will put in. From following what others have posted before you, it is sounding like you have an issue with the wiring for the second battery. I would check the ends that you should have taped up to ensure they are not grounding to the body of the car. From there, inspect the wiring for any damage from it not possibly being held in place and rubbing on something.

 

Tell me about it not being any help thats what SDD shows me and then the even more helpful description it provides when i click the info tab. As for the start stop battery.... well its not even in the car anymore and hasnt been for over 6 months with no issues just now all the sudden im getting this vague code that is triggering the MIL to be lit up

 

It may be those codes imply your car's software (aka calibration) is newer than the SDD you have and thus it doesn't know what they mean.

P167F being a P1 code is make-specific so don't look it up on general web sites - it's Jaguar-only and may well be your car-only or at least your model-only.

Of course they can be garbage if poor electrical power is involved.

 

P167F is a non oem calibration code meaning my stupid *** one day forgot to take the tune file I have flashed onto my PCM off and restore the original file before firing up SDD and so that code will forever be displayed and stored and can never be erased. The only way to get rid of that one is if I get a new ECM and even then I have my doubts it would be gone. It basically tells jaguar that u are running a tune on your vehicle and that you have voided any and all warranty you may have had.
external power source is always hooked up when running SDD with a constant 13.4V, not a charger or a pulsating currant