System Tests: Notes
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1998 GMC Savana Special, 1998 GMC Savana Camper Special, 1998 GMC Savana, 1998 Chevrolet RV Cutaway, and 1998 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
DO NOT replace PASSLOCK(R) module unless there are no VCM DTCs and a current PASSLOCK(R) module DTC exists after system check and DTC test has been completed. DO NOT replace PASSLOCK(R) module based on history codes.
NOTE:
System tests are written specifically for General Motors' Tech 2 scan tool. A generic scan tool may not be capable of performing all necessary test functions.