MIL Does Not Light At Ignition Switch ON and Engine Does Not Start Through It Is Cranked Up

MIL Dose Not Light at Ignition Switch ON and Engine Dose Not Start Through It Is Cranked Up

Wiring Diagram:

Wiring Diagram

Circuit Description
When the ignition switch is turned ON, the main relay turns ON (the contact point closes) and the main power is supplied to ECM.

Step 1 - 8:

Troubleshooting