Here is a wiring diagram for the blower motor circuit. Power to the blower switch is routed through the A/C power relay, the A/C power relay is turned on by pushing any of the mode buttons.
With the key on and any of the mode buttons pushed, you should have power on the brown wire cavity "A" at the A/C power relay. You should also have power on the brown wire cavity "D" at the A/C power relay. If the relay is "on", you will have power into the blower switch on the black wire cavity "E". If you do not have power on the brown wire cavity "A" at the A/C power relay, then check for power out of the mode switch on the orange wire cavity "B". Make sure to check for power with the connector plugged in.
[This message has been edited by seajai (edited 04-28-2014).]