srs light 05 avalanche

The service air bag light turned on after I installed a remote starter. The fuse under the hood is good. The only thing I can think of is that I did not hook up the Brown 2nd Acc wire because I did not see it on any of 4 wire databases I looked. I'm sure I will go back in in and hook it up anyway, but just wanted to see if anyone knew of any other possible culprits. Thanks

Disconnect the battery for 30 mins or disconnect the positive terminal and touch the cable to ground. it will clear any false idiotlights on the dash. if the SRS light comes on after reconnecting the battery, you may have a more complex issue and should inspect the airbag harness to make sure everything is intact.