hi all

i have a problem with my avic-f90bt

the problem is touch screen does not work

and

Show me

system detected improper connection of parking break lead

hi all

i have a problem with my avic-f90bt

the problem is touch screen does not work

and

Show me

system detected improper connection of parking break lead

loose grounding on the parking break,

^^^^^^^

how can i fix it?????

idt's right - One of your ground wires, more specifically, the parking break ground wire, is loose and/or not connected properly. Go through all your wiring connections again and make sure none popped out.

If you were trying to do the hardware bypass you might have missed a step. If I recall correctly, you need to move a pin on the harness and then wire that wire up with the ground wire. Since your question didn't mention how you installed your unit, I'm only assuming and this could not pertain to you whatsoever.

by the way .. the screen the same since 5 months .. no one had make an bypass for

it .. never .

& I have tried to make update for windows ce .. & tried the test mode.

also .. the tuch didn't work at test mode

help me please