The diagnosis and repair procedures in a GM Service Manual contain both
general and specific Dangers,
Warnings, Cautions, Notes or Importants. GM is dedicated to the presentation of
service information that
helps the technician to diagnose and repair the systems necessary for the proper
operation
Important Preliminary Inspections Before Starting
Before using the Symptom diagnosis, perform the following:
Perform Diagnostic System Check - Vehicle and verify all of the
following items:
Engine control module (ECM) and malfunction indicator lamp (MIL) are
operating correctly.
There are