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i turned key to forward position, stayed there until the security like shut off 10 mins. then turned key to off position for 10 seconds then back to on position, this time security light did not come on, but i let sit for 10 mins before turning key to off position. then tried starting. would start for 2 seconds then shut off with security light blinking . so i tried re learning it again, left key in on position until light quit flashing, then it stayed on solid, after 2 min it shut off. then urned key to off position for 10 seconds and then forward to on position again. again no security light on second try so tried to start. still same results 2sec runing then shut down, checked computer again and came up with same code.
i picked up a second BCM at local salvage yard from what they said and contacting the local gm dealer said they didnt think it owuld need to be programmed, my old BCM however would not communicate with the scanner.