Main Relay (Computer/Fuel System): Testing and Inspection

EC-MAIN-01 Main Power Supply And Ground Circuit:

Main Power Supply And Ground Circuit:

Circuit Diagram

ECM Pin Terminals 4 Through 118:

ECM Terminals and Reference Values

NOTE:
Specification data are reference values and are measured between each terminal and (43) (ECCS around).

(Part 1) Diagnostic Chart:

(Part 2) Diagnostic Chart:

Diagnostic Charts