mazdatweaker
+1y
Repeating what was said earlier. . .
Ground the test connector (Green: 1-pin) with a jumper wire. NOTE: The connector is located next to the Self-Diagnostic Connector.
Turn the ignition switch to the ON position.
If the CHECK engine light illuminates, goes off, and stays off no codes are present.
If the CHECK engine light illuminates, goes off, and then starts flashing, codes are present.
From what you are saying, the light does not go off at all, so that indicates "something."