As some of you know I have to rebuild my s type 4.2 v8
after a lot of expense engine back together and in car
I now have a new fault code that i can not find any information on code B0300 network management explosion
Thanking you
Darrol

 

The $64,000 Question:

Are you experiencing any problems relevant to this code?

I see precious little online for this code. It's a B series code for body systems such as HVAC, airbags, etc.

I note your last screenshot says 2002-2003, but your car is 2004. Maybe it's a scanner anomaly due to the year selected?

I vaguely remember something about some years having minor software bugs that would trigger essentially meaningless codes. Instead of updating the software, Jaguar's fix was a bulletin saying to ignore these codes. Ring a bell with anybody?

If you do find something for this code, make sure it's an official Jaguar document. Scanners typically give a generic definition, but some codes (usually non-emissions) have different definitions with different car manufacturers.

 

Something odd about the tool - network errors start U not B.

Do not trust it.

 

Sorry Darrol, you made me laugh. After all you’ve been through, then getting another fault code; I should think YOU may want to explode. But I doubt the car will.
Don’t panic, you’ve come a long way and you’re on the finishing straight. Almost there bud.

 

YES! In fact, I just saw this exact thing last night when I was working on my car looking at the fuel trims there was a technical bulletin that I had read that said that if you were getting these certain codes, I can’t remember which ones but aren’t having any problems to just ignore them. I thought that was funny but I did see it last night and I can’t tell you if it was actually some thing I read while using the SDD software (but I think it was a doc from inside SDD) or if it was a technical button that I have downloaded