What could cause the fan to not turn on at all check all fuses and still nothing 1997 dodge neon?
You don't say what fan. Fan motor is either bad, or loose or disconnected wiring, or in the case of the cooling fan, the thermal switch can be bad. Apply 12 volts directly to the motor to see if it is good. Also check and of the wiring associated with the fans. Dodge engine compartment wiring is extremely bad.