Diagnostic Tests: Notes

NOTE: Before performing any diagnostic test, see SELF-DIAGNOSTIC SYSTEM for diagnostic system functions and system diagnostic procedures. Also check for any related Technical Service Bulletins (TSBs). For component location, see appropriate illustration in THEORY & OPERATION article.

NOTE: To identify ECM terminals referenced in testing, see illustration. See Fig 1 or Fig 2 .

Fig 1: Identifying Engine Control Module Harness Connector Terminals (With 4A/T Transmission)

Fig 2: Identifying Engine Control Module Harness Connector Terminals (Without 4A/T Transmission)