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Hello Folks,
My buddy has a 97 C5 and is recently getting "Pull Key Wait 10 sec" on the display. When he tries to drive off the car will just die. He said the codes that comes up is: LDCM U1064H and RDCM U1064H. (Loss of Communication with DCM). What does this mean? He also mentioned he installed a Column Lock Bypass about 1 year ago. :seeya
The "pull key" message sometimes it occurs when the resistor pellet in the key is damaged or dirty. You might tell your friend to try using another key and see if the problem goes away.