Class 166 Brakes Not Applying

Class 166 brakes don't seem to come on anymore except in step 4/emergency? Seems to be intermittent.

 

Do a full close down of ur cab,and check the rear cab, it could be that the reverser isnt in the 'off' but could be in 'neutrel' which can affect the brakes

 

This happens when both cabs are keyed in. Make sure only the cab you're driving from has the reverser set to 'Forward' and has the master key in.