hi guys,
had an auto electrician look at the car he tried to run a diagnostic on it (tricking the tool into thinking it was a merc as he didnt have chrysler softwhere)
it would talk to everything except the roof
now he said it suggests to him that the roof module is faulty

my question is if the module is nackered would it still stop the spoiler workin?
as the flashing light is still on on the spoiler switch

im guessing il have to bite the bullet and pay the ripoff chrysler diagnostics prices

also does anyone know how long a diagnostic takes? as i dont want to pay £80+vat an hr if they drag it out for a load of hrs

thx