Ok so anyone know where the I bus control unit is ?

you asked this back in november 2018..

https://www.fullfatrr.com/forum/topic49408.html?highlight=i+bus

was it no help?

Tried a hard reset and have now put a new battery on but still showing I bus fault
so need to find where the controller is if it’s part of the dash have I got to change the dash
And if so what do I need to do

What is not working ? (ibus codes are frequent and often of no consequence) .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

No indicator fog main beam lights on dash
No radio or anything else on the screen
And no sound
And still saying 0x88 I bus fault

Take your DVD player apart and check for corrosion .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Have changed sat nav

Did the problem start after you changed the satnav? .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

No was like this when I got it sat nav was furry inside so changed it