#21 in the fuse panel under the driver side dash.
how do I remove the dash panel on a Vauxhall omega
You don't.
On my 1996 contour the heater would not work. I found from the dealer that under the passenger dash (kick panel) there is a relay they replaced. It is very easy to get at
Remove Lower Dash Panel passenger side. Remove glove box. Remove middle dash panel (below glove box). ECU is attached to the back of middle dash panel.
Open the driver door and remove the panel on the end of the dash
The heater switch on a 1996 Ford Contour is under the passenger side dash. It is located behind the glove box.
check your fuse
Above transmission hump in floor, behind lower plastic dash panel. Remove the screws to drop the panel and the flashers will be exposed.
Blower motor is located under the plastic panel on the passenger side foot well area under the dash. Remove the clips on the plastic panel and it will be up under the dash.
The 1999 Ford Contour OBD 2 port is under driver side dash next to kick panel
remove the top dash panel closest to the windshield, then remove mounting screws for dash module.