If I'm not mistaken, the brake lights and the shift lock cicuit is protected by the same fuse, so if the brake lights are out, replace the fuse.
most likely a blown shift collum actuator fuse. when you press the brake theres a pin that releases the shifter, you can hear a click. if that fuse is ok. check the actuator itself, if that is ok, check the fact that the linkage could be frozen, or it could be an internal transmission linkage issue. so start with the easy fuse.
Check heatertreater.net for diagnostic information and a fix for the blend door/actuator problems endemic to this model.
Check brake lights--if they do not work shift interlock will not release
The temperature actuator motor controls the flow of air through the heater core. The motor is located under the driver's side dash, above the transmission tunnel. It's a little difficult to get to, but not bad. Check heatertreater.net for pictures and what to check for on the actuator motor.
To test the blend door actuator on a 2008 Ford Ranger, first ensure the vehicle is turned off and disconnect the actuator's electrical connector. Then, use a multimeter to check the resistance across the actuator terminals; it should show a specific resistance value when operating. Next, reconnect the actuator and turn on the ignition to the "On" position without starting the engine. Activate the climate control system and listen for the actuator's movement or clicking sound; if it doesn't respond or makes unusual noises, it may need replacement.
heater door actuator for Ford Explorer.
how do you replace front door actuator for 93 ford tempo
How do I locate the heater blend door actuator in a Ford f150 pickup
Check all the linkage from the transmission.
how to replace a blend door actuator on a 1999 ford ranger
check the fuses.
When replacing the regulator on a 2006 Ford Fusion, you need to follow the instruction on the manual so as to be able to replace the actuator on a 2006 Ford Focus with power window.