Limp mode unknown error code

[assafde]

Hi, started my 2001 TD5 discovery, got the M&S blinking, yes I'm in limp mode... Checked on my Nanocom under the automatic gearbox section, got this odd message "Z! Invalid fault code"
Restart the car, it's gone, no more M&S blinking, what does this error mean?

 

[Daryl]

Probably that you are due for a new battery. Check your voltage off as well as running. Those TCUs like to freak out that way if they aren't getting the voltage they want to have all the time.