Retrieving Codes
WARNING: This page is about a different car, the 1989 Honda Accord. However, it is still accessible from the selected car via links, so may be relevant.
To obtain trouble code(s), turn ignition switch to "ON" position and count flashes of LED inspection light on ECU. See TROUBLE CODE IDENTIFICATION CHART and proceed to appropriate code for testing.
All voltage tests should be performed with a Digital Volt Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless specifically stated different in testing procedures.