This Preliminary Information communication provides information to the technician the step on diagnosing and repairing vehicles with inoperative Air conditioning, Instrument Cluster, OnStar, or other various electrical concerns. Technician may also find that fuses F35DA, F36DA, or the F37DA in the X51A Instrument Panel Fuse Block may not be powered up. Gain access to connector X201 and inspect connector for being properly aligned and the locking lever fully locked into place. Fully lock the connector and retest.
