I had my turbo replaced a few weeks ago and the AX update performed at the same time. This has resolved some issues with the CEL constantly coming on. Now, I have a new code showing up, P2000. My code reader reads: "Hybrid Battery System Voltage High"

My question is: Will it be OK to run the truck for a while with this glitch? I can erase the stored code and turn off the CEL but it comes on again eventually. What I'm concerned with is that there appears to be an over-voltage problem according to the code reader. I don't want to damage other parts due to a constant over-voltage condition. I can't get to the dealer right away. What do yo think? Just an annoyance code or something real serious? Thanks in advance,...

BTW, I've spent many hours at various dealerships over the past 10 months trying to get the constant CEL problems resolved, as have many of you. I still love the truck, though...

 

P2000 seems to be a fairly common code. Especially after a turbo replacement (do a forum search). Most have resolved the issue with a new flash, but since you have the latest flash I'd don't know what will help. Looks like you'll have to take it back to the dealer eventually. I would drive in the meantime.

 

It will be fixed with another flash.

You could also clean your O2 sensors in the exhaust system with some compressed air.

P2000 is an oxygen sensor rationality algorithm error

 

Thanks for the replies. How hard is it to remove the O2 sensors in order to clean them? I've never performed any mechanical work on this engine other than replace the fuel filter...thanks.

 

I would also like to know how hard is it to remove and clean these sensors, and is there anybody that might be able to post a diagram of what each sensor is and where it is located.

 

Since I last erased the code with my scanner about a week ago it hasn't come back. It appears that it's getting "better". Time will tell.....