Cruise control not working where to start diagnosing?

[Junaid cruiser man]

Leaving for Morocco in 5 weeeks having issues with Cruise control not lighting up I’ve swapped the arm in another truck and it works fine anyone had a similar problem ? Not sure if there’s a fuse that powers it

 

[AndycruiserguyLomas]

If its a manual check the clutch switch, if auto the switch on the brake pedal.

 

[Junaid cruiser man]

Ay up Andy it’s a Manual I swapped out the clutch switch with another from a working truck and still not no luck with it lighting up

 

[Steve Wright]

Two things never just try another say clutch switch as that might be faulty !
You need to check if the switch is ok !

also on the same thoughts check out the brake switch and it uses that to knock
it off, so if the switch is faulty that might be why its not coming on

Is your brake light on all the time ?