Had a dodgy (intermitant) indicator light and no dash light so opened up the dashpod to have a look. Fuel gauge, oil light and full beam light all working fine at this point.
Took off the backing plate and sprayed some conductor cleaning fluid around the circuit board and led light connections. Didn't do anything else other than check there were no loose connections.
Now have no oil light, no full beam light, no indicator light and no working fuel gauge. Could cope with this, but for some unfathomable reason the van will now not start!

Hazards, indicator lights, lights, fog light all working fine.
Is ignition connected to the circuit board? Thanks in advance to anyone who can help.