seat belt light / indicator

[jaylew]

So, this is more informational than anything. As most know for the 05 MY the seat belt chime can be turned off by disconnecting the white connector that goes to the driver seat belt receptacle. Well I recently disassembled an 05 seat belt receptacle to discover that it is just a position contact switch.

 

Also to my suspicion, that the actual seat belt switch (yellow connector) is not a physical switch at all, unlike how it is depicted in the service manual wiring diagram. I was suspicious when doing a continuity test there was no difference between the buckle in or out, always open circuit.

 

After taking the buckle apart I was greeted with a hall effect sensor. In the second picture the metal blade next to the spring plunges down upon insertion of the seat belt, and thus breaks up the magnetic field for the hall sensor.

 

Thought some of you might find this interesting. This is all because I am trying to find ways to fool the occupant detection module into thinking someone is always buckled up and sitting, instead of other hack ways. Helpful for seat swaps and still functioning airbags.

 

I'll keep you all posted on my progress

Edited July 25, 2019 by jaylew