From your description, you must have a LCI(Coach Step/SCS) step? Kwikee steps, all the gear teeth are internal and you cannot see them. LCI steps the pie shaped external gear is visible. The control module has nothing to do with IF the gears on the motor turn. True for both brands of steps. If LCI or Kwikee, you need a new motor. Doug
LCI parts
motor
https://store.lci1.com/motor-for-all-steps-electricpie shaped gear
https://store.lci1.com/gear-unit-single-double-electric-stepsPS, good luck finding a aftermarket LCI motor that is cheaper.