iveco stralis

I have an Iveco stralis 2005. Driving down the motorway and got a warning light for low axle front air pressure sensor and gauge read zero. RFC (rear frame computer light is on) also codes DTC 09/ FMI 01/ OC 001/ act Y)

Any help appreciated and no sarky Iveco comments!

Sounds like bulb out at the back of the unit possibly and problem with the pressure sensor for the air suspension on the midlift might be wiring or could need the sensor replacing.