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My SRS saga continues. My saga began when my air bag light deployed and the error code was B1222 "driver seatbelt is shorted to ground". Then not too long after that as I was driving home the clockspring had a meltdown. So I ordered a new seat belt buckle from a Smart dealer and when it came I installed it. I ordered a used clockspring from a notable reseller and just installed it.I have an Autel 808 scanner that will access all the devices connected with the SRS system. Replacing the buckle didn't fix the Air bag light. So I disassembled the interior removing seats and carpet and the underdash center cover and also the steering wheel and clockspring. I got a wiring diagram for the SRS from a fellow SCOA member and began tracing wires and testing for resistance and shorts to ground. In the end I didn't find anything notable.
I plugged the SRS module back in and reinstalled the seats and pretensioner. Then I installed the clockspring and steering wheel and driver air bag in the center of the steering wheel. The SRS module is working because I still have an airbag light but not sure if it is working correctly.
The other 2 error codes are B1023 "stage 2 driver airbag has high impedance" and B1003 "stage 1 driver airbag has high impedance". So I am going to remove the steering wheel again and ohm test the replacement clockspring. Since the driver airbag connection to the SRS module runs through the clockspring I am going to assume the clockspring could be bad. I can clear the seatbelt error and the air bag errors. But as soon as the car restarts they reappear. So that tells me I haven't fixed the problem.
I have been researching all over our forum and Smartz and Evilution along with any other resource I can find through a Google or Bing search. There is so much misinformation out there that I do not know what or who to believe. A hard error code is etched into the SRS in the event of an air bag deploying or a crash sensor firing off and then the air bag light goes out because the module shuts itself down and will not operate until it is reset either by a module resetting service or the dealer. I would just replace my SRS module to see if it is faulty but....some say it is tied to your VIN # and therefore another unit wouldn't function out of it's host original car. Some say it isn't tied to a Vin because reputable resellers sell them for replacement all the time and they couldn't do that if they were tied through the VIN.
Since there is no reliable information out there to buy it really puts an independent mechanic like me at a disadvantage. Full blown AllData which I have access to has very limited information on the Fortwo. I am at a loss to troubleshoot the problem. I don't want to drive it without the SRS working because in the event of an accident your only chance of survivng a serious accident is the air bags and pretensioners, so there is alot at stake. So I sit here not knowing what to do next. I have more questions than answers. I feel like I'm trying to solve the DaVinci code. DCO
I plugged the SRS module back in and reinstalled the seats and pretensioner. Then I installed the clockspring and steering wheel and driver air bag in the center of the steering wheel. The SRS module is working because I still have an airbag light but not sure if it is working correctly.
The other 2 error codes are B1023 "stage 2 driver airbag has high impedance" and B1003 "stage 1 driver airbag has high impedance". So I am going to remove the steering wheel again and ohm test the replacement clockspring. Since the driver airbag connection to the SRS module runs through the clockspring I am going to assume the clockspring could be bad. I can clear the seatbelt error and the air bag errors. But as soon as the car restarts they reappear. So that tells me I haven't fixed the problem.
I have been researching all over our forum and Smartz and Evilution along with any other resource I can find through a Google or Bing search. There is so much misinformation out there that I do not know what or who to believe. A hard error code is etched into the SRS in the event of an air bag deploying or a crash sensor firing off and then the air bag light goes out because the module shuts itself down and will not operate until it is reset either by a module resetting service or the dealer. I would just replace my SRS module to see if it is faulty but....some say it is tied to your VIN # and therefore another unit wouldn't function out of it's host original car. Some say it isn't tied to a Vin because reputable resellers sell them for replacement all the time and they couldn't do that if they were tied through the VIN.
Since there is no reliable information out there to buy it really puts an independent mechanic like me at a disadvantage. Full blown AllData which I have access to has very limited information on the Fortwo. I am at a loss to troubleshoot the problem. I don't want to drive it without the SRS working because in the event of an accident your only chance of survivng a serious accident is the air bags and pretensioners, so there is alot at stake. So I sit here not knowing what to do next. I have more questions than answers. I feel like I'm trying to solve the DaVinci code. DCO