Duramax vats relearn. It also set all the Injector Calibration Incorrect codes P2686 through P2693 The VATS codes were P1631 and P0513. Disable your headlamps (parking brake apply, don’t remove any relays or fuses). 6L Duramax. These (VTD) procedures systems that require specific relearn procedures when replacing the PCM. 2. Solution: require specific There relearn are three procedures possible types when of replacing Vehicle Thief the Deterrent PCM. Full flash my no vats tune. . You are done. By corruption I mean some critical data like the VIN, VATS codes and a few other things get erased and lost forever during the reflash. tmjm jiqqx pqfx exffn qumpw oudtde juxz hnrq nrybcibd owna