If you have a multimeter and can gain access to the back of the awning switch on one of the terminals there should be 12 volts DC. Just check all the switch connections to ground for the voltage. If there is voltage on any one of the switch terminals then possibly the motor is bad. There should be a disconnect for the awning within one of the awning struts (behind a plastic guard on one of the arms). If no volts at the switch need to find fuse. Cannot help further with your Mirada. Good luck.