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Power Supply Testing

Main Power Supply and Ground Circuit

EC-MAIN-01:




EC-MAIN-01 - Connector View:




EC-MAIN-01 - Connector View 2:




WIRING DIAGRAM

Joint Connector Terminal Arrangement (F23, F24, F25):






ECM Terminals And Reference Value:




ECM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND GROUND.

CAUTION: DO NOT USE ECM GROUND TERMINALS WHEN MEASURING INPUT/OUTPUT VOLTAGE. DOING SO MAY RESULT IN DAMAGE TO THE ECM'S TRANSISTOR. USE A GROUND OTHER THAN ECM TERMINALS, SUCH AS THE GROUND.

Step 1:




Steps 2 - 4:




Steps 5 - 7:




Steps 8 - 10:




Steps 11 - 14:




Steps 15 - 18:




DIAGNOSTIC PROCEDURE