Ford Fiesta Earthing promblem?

[Vincejoint]

Hello, recently the indicator warning light on my 2007 fiesta has stopped working although the indicators themselves work. Also the airbag warning light stays on, and the front/rear window heater switches don't light up. The radio works but does not display the time. The hazzard warning light switch does not light up although they are working. The radio station is not displayed in the dash. Any ideas on how to solve this please? Thanks, Vince

 

[Belle427]

start by testing for voltage at the defective lamps, i cant see a bad earth causing problems on that many random items
by testing at the lamps etc you can determine if the 12 volts or the earth is missing and have a better idea on how to proceed