Cleanup turns to mess up. Need some help troubleshooting.

Here is the section im talking about. it refers to testing the voltage at the connector to the ECM with the ignition in the on position. It states that the voltage at test points 1,2,3 should be within 1 volt of the battery voltage. However with 12v on the battery im only showing 10.3 volts here. It shows each diagram to test the circuit to figure out where the issue is.