Does it have a multifunction switch on the top part of the steering column, below the steering wheel? That one switch controls many of those functions, if the truck has it.
if not, I would start looking for a corroded or broken ground wire (s).
It does but that switch only controls the directionals , wipers , and high beam. Cruise is on the steering wheel , but those all go thru the clock spring down on the column ... radio controls in the clock spring also if it has the top line radio.
Heat is it's on separate thing .
