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How to Clear Diagnostic Trouble Codes

METHOD OF ERASING THE DIAGNOSTIC TROUBLE CODES
WHEN USING THE SCAN TOOL [MULTI-USE TESTER (MUT) OR MUT-II
(1) Turn the ignition switch to OFF and then turn it back to ON again.
(2) Erase the diagnostic trouble codes.
(3) Check to be sure that no diagnostic trouble codes exist

WHEN USING THE VOLTMETER
(1) Turn the ignition switch to OFF.
(2) After disconnecting the battery cable from the battery (-) terminal for 10 seconds or more, reconnect the cable.
(3) Turn the ignition switch to ON, read the diagnostic trouble codes and check that a normal code is output