Does not require a blown buckle assembly. I just used one of those to take apart and see how the circuit worked.
Try setting your pot to ~460ohm, remove your DVM, and then plug it into the car and turn the key on. Its possible if the ecu sees an illegal value it latches the light on and your 'sweeping' the pot wil have no effect even if you ended up on the right value.
Position is the same as Scribblersix's pic except I used a 460 ohm where he has a 2200 ohm on the bottom. I left the yellow connector intact and soldered the resistors to pins (see post #7) for the airbag and seat belt resistors.You could just cut off the yellow connector and solder the resistors if you prefer. I cut off the occupancy sensor and soldered the resistor to the wires.I’ll be trying to do the fix this weekend since I’m also doing a swap with the seats. I’m no electronics guy at all and was wondering what your final setup of resistances was?
Same as photo? Did you leave the connectors or removed them and soldered the resistances?
Did you cycle the ignition at different resistances?Here is the latest.Using the drivers seat as a test bed to eliminate the occupancy detector from the equation, I installed a 2.5 ohm in the air bag connection and a 5K pot on the seat belt connection. Running through the full range of the potentiometer, the seat belt light remained on. I also ran the test on the missing center seat connection but oddly as soon as I turned on the ignition, the resistance jumped to 8000 ohms with the pot turned all the way down. I got the same results on the passenger bucket connector. Not really sure what to make of that.
Bottom line is this won't work on my van unless I've missed something or screwed up somewhere. It may me the difference in model year. Scribbler's is a 2015. Mine is a 2018.
I believe post #28 is referring to the airbag pre-tensioner, part of the yellow clip that connects to the seatbelt. A seat with an airbag installed in the seat has the yellow clip for the seatbelt, the passenger has the occupancy sensor and both the driver and passenger seats have an orange connector that attaches to the internal airbag. I have searched the webs and cannot find a specific post for a promaster in seat airbag ohm rating.Look at post #28.
These are not actual OEM seats, they are seats purchased from discountvantruck. Ordered 2.5 ohm resistorsAre these actual OEM promaster seats? Do they have the matching plugs? If they don't, the above fix will fool the ECU. If you are just trying to put a resistor where the airbag is supposed to be (blown airbag?) I believe it's 2.5 ohm. Everything I've read suggests 2.5 is the common resistance for airbags.