Vito 639 light on dash never shows

[kal77]

Hi guys,just was wondering why is my abs light not showing at all on start up,normally it shows for a couple of seconds on any vehicle,in my case no joy at all,any ideas please ?thanks

 

[Dieselman]

Bulb out?

 

[BTB 500]

Disconnected to hide a fault?

Light not coming on with ignition will be an MOT fail.