Kobashi76

I recently replaced my SRS module in a 2006 r 350. I had the seat unscrewed and tilted back (passenger) to be able to get to the battery. I started the car to check the codes and light in this position. All cables were connected. Now I get a code 91CO and 91C3. could that be from the seat not being screwed down and tilted back to access the battery? Thanks for your help.
Here is what I can find on the codes:
91C0: The ignition circuit with component R12/6 (Left rear ETR ignition squib) has Short circuit to ground.
91C3 The resistance value in the ignition circuit containing component R12/6 (Left rear ETR ignition squib) is too high.
What are these ETR's? I have replaced all belts and pretensioners and had the module reset. Any help would greatly be appreciated.

Cadstar13

I am having the same issue on a 2006 R500. Did you ever resolve your issue? If not, maybe we can work together to resolve this issue. Let me know. Thanks, Brian.

Cadstar13

Update:

I ended up replacing all 4 weight sensing sensors and the module with known good ones from a parts car.
I looked every up and cleared the codes, but the SRS light came back on when you would start it. Then, if I checked the codes it would say no codes, but they would be in the history. I went to a friend's who has a star scanner of some kind. Not sure of the brand of actual device. He zeroed the seat, then did the weight calibration and cleared the codes. Everything is now working properly and I am pretty confident it was a good repair. I got the parts on eBay. Hopefully this info helps. Thanks, Brian.