Hi follks, just a question my 06 Lt 3.9l Monte Carlo was running great until just recently, the issue that popped up was driving along she shut down and displayed a message about traction control. I disconnected the battery reconnected and she started and ran again, shut off then after 5 minutes started again with out battry disconnect ran for 5 minutes then stalled as i got to my house. Since then she will start up after a battery disconnect and run great but may shut off and may not however after the 1st start usually will crank but not start our not even crank. I had it on the OBD 2 tester checking control module voltage at one time and saw voltage drop off and the car shut off Any help as to this bring a BMC or a Main power relay issue would be helpful. The car will set a code P0690 with a message "ECM Power relay sense current high" BTW great site and thanks for any help you can provide.