AM GENERAL, BUICK, CADILLAC, CHEVROLET, GMC, OLDSMOBILE, PONTIAC · 2002-06-01
DIAGNOSTIC TROUBLE CODES B1001, B1271 OR B1780 SET WHEN REPLACING / REPROGRAMMING OTHER MODULES FOR 1999 - 2003 PASSENGER CARS AND TRUCKS WITH CLASS 2 SERIAL DATA COMMUNICATION BETWEEN MODULES. *TT