my heated seats in my 2003 silverado have been acting up, also the power to my drive seat. i think i have a loose connection on one of the plugs under the drive seat (The plug that is loose i think it sits right behind the seat controls on the drive side) i can reach up under there a kinda of move them a round and it will work for like a min but then i lose both heated seats and just have power to the passenger side seat and not the drivers kinda crazy. i was woundering if anyone had any ideas on how i could fix this or tell me how to get a better look at the plugs so i can check for a loose connection or something?

my heated seats in my 2003 silverado have been acting up, also the power to my drive seat. i think i have a loose connection on one of the plugs under the drive seat (The plug that is loose i think it sits right behind the seat controls on the drive side) i can reach up under there a kinda of move them a round and it will work for like a min but then i lose both heated seats and just power to the driver side seat to kinda crazy. i was woundering if anyone had any ideas on how i could fix this or tell me how to get a better look at the plugs so i can check for a loose connection or something?

remove the seat fasteners and move seat to get a better look at cables and connector pins

my heated seats in my 2003 silverado have been acting up, also the power to my drive seat. i think i have a loose connection on one of the plugs under the drive seat (The plug that is loose i think it sits right behind the seat controls on the drive side) i can reach up under there a kinda of move them a round and it will work for like a min but then i lose both heated seats and just power to the driver side seat to kinda crazy. i was woundering if anyone had any ideas on how i could fix this or tell me how to get a better look at the plugs so i can check for a loose connection or something?

You may not have a loose connection at all (although you should check it out). It turns out the seat heater module (it's under the driver's seat) checks for proper current going to the seat heater elements and will shut down heat to both seats if it thinks something's wrong. I had my passenger side seat start to go out (resistance got higher as an element or two stopped working), and the control module decided "no go" to the whole system. The driver's heat would work fine until my wife turned on the passenger seat heat; then the whole thing would quit. It took me a while to figure it out since the passenger's seat heater element still showed continuity. I finally got the system working again by putting resistors in parallel with the seat element to fool the controller into thinking the seat heater was the proper load. The seat still got hot too. Fixed for real with a new passenger's side seat heater element.

Note there are separate power and sensors for the back heat and the butt heat for each seat. The control module will shut the system down if it detects shorts to ground or +12 or if it detects too little load (which was the problem with my seats). I suppose you could also have a bad controller...

Good luck!