Diagnostic Tests: Notes
NOTE:
Before performing any diagnostic test, refer to SELF-DIAGNOSTICS - INTRODUCTION
article for diagnostic system functions and system diagnostic procedures. For component location, see appropriate illustration in THEORY & OPERATION
article. References to California emissions apply to vehicles with California emissions, which may be verified by underhood Emission Control label. Vehicles with California emissions may be available in other states.
NOTE:
For information on engine immobilizer system, see COMPUTERIZED ENGINE CONTROLS
in THEORY & OPERATION article, or appropriate ENGINE IMMOBILIZER SYSTEMS article in ACCESSORIES & EQUIPMENT.
NOTE:
To identify ECM terminals referenced in testing, see illustration. See Fig 1.