My reverse lights do not come on, focus c-max

There isn't a fuse for the reverse lights. The wires run threw the Neutral safety/range selector switch. Mounted on the transmission, under the shift cable.

You may have a faulty/shorted reverse light switch. The back-up lights come on when you put the shift lever in reverse. The shift lever linkage contacts this switch. Here is a youtube video explaining how to replace such a switch. How to fix REVERSE LIGHT SWITCH on 2005 Ford Focus and similar models...

reverse light switch is on the gearbox on these cars top front if i remember rightly

If the bulb and the fuse are good, (the fuse will affect other circuits as well, not only the reverse lights), your next stop is the reverse light switch. It is located on the gearbox and is a switch with two wires coming from it. Remove the wires and touch them together and see if the reverse light comes on with the ignition on. If they do, you need to replace the switch.

check for power to the reversing light switch ,open a paper clip up and bridge the connections to see if the reversing lights work as for the cruise its possible its the same fuse but never seen a focus with cruise on here in spain so i wouldnt know

clutch needs adjusted

ARE YOU READY
L.H. STOP AND TURN ( YELLOW )
R.H. STOP AND TURN ( GREEN )
TAIL, LICENSE, SIDE MARKERS ( BROWN )
GROUND ( WHITE )
NOW THE COLORS ON THE VEHICAL ARE GOING TO BE DIFFERENT AND YOU WILL NEED A 12 VOLT TEST LIGHT FOR MAKEING SURE YOU HAVE THE WRITE WIRES FROM THE CAR TO THE TOE BAR, DON'T NEED BACK UP TIGHTS FOR THIS

mid level to higher, u have a worn out clutch, replace it before u damage the trans

You  probably have a frayed wire touching something metal (short to ground) check your wiring, check your grounds.

probably you have to open the tail light bulb and connect the wire there