Reading Diagnostic Trouble Codes

HOW TO SWITCH DIAGNOSTIC TEST MODES




*1 While the diagnostic test mode selector is kept turned fully clockwise, it will continue to change in the order of Diagnostic Test Mode I --> II --> III --> IV --> V --> I...
*2 The diagnostic trouble code is erased from the backup memory of the ECM.

Return the diagnostic test mode selector to the original position so as not to disturb the idle speed