Driver belt tensioner

[bonbon]

Upon returning seats to the car - the airbag light lit up. I have a device that detects and zeros the light. It says it's the driver tensioner. Usually cleaning the small connectors under the seat fixes the problem but now it does not help.
Is the yellow connector on the belt side of the cable removeable to clean? I hope I did not damage the tensioner when the seat was on the ground (I was changing the seat cover).
I also tried disconnectiing the battery

 

[bonbon]

PS - This yellow connector is removable - but cleaning the contact here did not make a difference. My guess is still the other crap connector (or the tensioner itself)

 

[bonbon]

Contact spray did not help - but scraping the pin contacts in the male side of the connector with a fine blade and pushing a pin into the female side got rid of the dreaded airbag light with a cheap reset tool.

 

[colb]

Test the belt tensioner resistance to see if its duff, how to video here

View: https://www.youtube.com/watch?v=4ZHpPVZKQ6k