Front air and heat dont blow but rear blows cold instead of heat

Hello, the front air not blowing at all is a concern with your blower fan system. The fan is controlled by the climate control system, speed controller or relay, fuses, a resistor (or controller) and the blower motor itself. Hands on testing with proper electrical testing equipment and a diagnostic tool that can check body related modules is needed. For the rear, if it's all cold, you could have a concern with the temperature blend door controls and motor, or there could be an issue with the engine not running hot enough, not producing enough hot coolant to circulate to the rear heater core to produce hot air. Again, hands on testing with this system is needed, and I do think it is a separate concern. www.repairpal.com/repair-shops