2006 Cadillac SRX drivers heated seat not working.

There is an electric motor that controls the blend door. You probably have an issue at the blend door. Either the motor is bad, or the actuator isn't connected. The actuator arms are know to crack and allow the motor to move without moving the actuator.

Electronic's ! drivers Power seat module , driver door module . Do you know anything about automotive electronic's ?

The heated seat module (MSM) controls heated seat operation for both the driver and passenger seats. There are 2 modes of operation available for heated seats; both the seat cushion and seat back heat, or seat back only heat. When a heated seat temperature signal request is received, the MSM will activate both the seat cushion and seat back heating elements. When the heated seat BACK ONLY mode button is pressed once the MSM will deactivate the seat cushion heating element and leave the seat back heating element ON.
The adjustable pedal system is controlled by the memory seat module (MSM).
your best bet , have a qualified repair shop check it out ! Could have DTC'S - diagnostic trouble codes in door module , BCM etc...

There is a thermistor in the circuit that keeps the seat from overheating. If the thermistor has failed or there is another problem in the circuit (such as a broken or shorted connection, which is common in the seat pad elements), the controller will shut the circuit off.

Either a broken wire under seat or seat module is bad. Also check your fuses.some have a fuse box under back seat

Remove the rear lower seat. Remove bolts holding belts to floor pan of vehicle.

sounds like it could have air lock in cooling system bleed air from system

anti theft? bad starter?

Best bet ,have it diagnosed at a qualified repair shop . Has a couple of electronic modules involved . Driver door module , heated seat module . But before you criticizes have a look at the wiring diagram an tell me you understand what's happening .Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Under system click on interior & driver amenity , then under subsystem click heated seats . Click the search button then the blue link . Hooking up a scan tool that can communicate with driver door module for the purpose of checking for DTC'S diagnostic trouble code's .

Thre's three motors or more that move your seat the one that controls foward/back went bad or harness under seat came apart.

Swap it with a relay you know to be good and see if it works again,pick a relay that is not important to the function of your car.