Diagnostic Method: Notes

Judge NG when the malfunction criteria below are completed by tumble generator valve driving IC, and then NG signal is sent to main IC. At the main IC, check the sent signal at each timing which occurs just before the tumble generator valve output is set to ON and OFF, and judge open NG when the open NG signal is sent during 2 seconds in a row. Judge OK and clear the NG when the OK signal is sent.