Got into an accident with my 2010 Mazda 5. Airbags did not deploy but since the collision the airbag light is flashing code 12. Hooked it up to FORScan and am reading codes B1318 (low voltage) and B1342 (ECU defective). From what I have read B1318/code 12 indicates the ECU has bad capacitors and failed. I don't know how true that is but it seems strange that it would fail after a collision. The only thing I can think is that the airbags were supposed to deploy and didn't!

I picked up a supposedly good airbag module for cheap. Can I just plug this in and go or do I have to have it reprogrammed? If so looks like I will have to bring it to the dealership and they will probably charge a fortune.

The only thing I can think of is that the VINs won't match and maybe it will throw up an airbag code. However will it still work? If it has to be reprogrammed, what will happen when I plug it in? Will it still deploy airbags in a collision if the VINs don't match?



Body shop said they will fix the problem but it will cost me more $$$ and they said they will have to bring it to mazda anyway. They already fixed the car and left the computer in it's current state. Can't get any more from insurance since I have hit the 80% so anything additional is out of pocket. Looking to fix this myself if possible.

 

Plug it in & see what happens.

I'm quite sure it will need reprogramming to your car.

 

Swapped in a module from ebay and it worked fine. Didn't need to reprogram it.

 

I'm repairing a 2014 Miata that did deploy the driver side airbag. I've replaced the airbag and repaired the seat belt pre tensioner. I'm still getting B1318 and B1342 with FORScan. I'm thinking I need to remove and send the control module for repair. Your opinion?
Best, Terrell

 

How did you get to the second pic with FORScan?
Thanks,
Terrell

 

The SRS ecu will need to be repaired or replaced anytime the SRS system is activated.

 

Thank you.