About 6 months ago i had a water leak from my 3rd brake light. I have repaired the water leak and thought all was well. Till Thursday. My airbag light came on. I went and checked it out and found very high resistance in the BST ( battery safety terminal ) designed to blow in case of an accident and separate the battery cable so not to cause a fire if i roll the car and leak gas all over.
Anyways i priced just the part out and it was 378$
Im not paying 378 dollars for a part i feel is unnecessary. how many vehicles dont have a BST and are perfectly fine. I dont however want the airbag light banging me in the face every time i drive it so...
Ive heard people who put racing seats in wire in resistors to trick the MRS ( airbag computer ). I went to radio shack and got a pack or 10 Ohm resistors and wired 3 of them together to create 3.33 Ohms. Spec that the computer is looking for was 1.5-6 Ohms. I wired the pins to the connector and disconnected the connector and cleared my fault. Poof Fixed!

Just figured id share, mabe this will help someone someday

 

I'm a little confused. Where exactly is the connector you're talking about? And to bypass the BST, do you connect the resistor between the same terminals you would use if you were installing racing seats?

And by using the resistor to trick the airbag computer into ignoring your bad BST, have you also disabled some/all of your airbags?

 

No, the BST connector is located in a small box on the right side of the battery box. It is a 2 pin connector brown and blue wires. I simply disconnected the connector at the battery box and wired in 3 resistors so the MRS module still thinks the BST is connected and operating normally. Doing this only disables the BST because it is hardwired to the MRS and no other modules/airbags share that circuit. If you leave the airbag light on in the vehicle, thats when you have big problems.
The guy at radioshack where i got the resistors was lecturing me about safety and that i shouldnt monkey with my car and that its probably not going to work

I have wiring diagrams for the entire vehicle if you ever need it Scott

 

Okay - thanks for the clarification. When you compared the procedure to fooling the MRS in order to install non-airbag seats, that's what confused me, because it sounded like you were using the same connector. It's all clear now.

 

I have the same problem with my car after replacing the Battery Terminal. Should have read up first! I had my mechanic clear all the airbag codes and there was just a battery terminal code left. I'm headed to Radio Shack ASAP. What wattage were the resistors you used? Sorry to dig up an old thread.

 

just to be clear, are you guys wiring one end of the resistors to the blue wire and the other end of the resistors to the brown wire to create or complete a loop? With the BST explosive unit missing or damaged i guess it wouldn't make sense to wire the resistors inline with the blue or brown wire.