PGM Tester Or OBD-II Scan Tool
Turn ignition off. Connect Honda PGM Tester or OBD-II scan tool to 16-pin Data Link Connector (DLC). See Fig 1.
Turn ignition on. If using Honda PGM Tester, follow tester prompts. If using OBD-II scan tool, check for and record any DTCs displayed. If using either method, see DIAGNOSTIC TROUBLE CODE IDENTIFICATION and proceed to appropriate DTC testing.