| 摘要 |
PROBLEM TO BE SOLVED: To provide a diagnostic system capable of diagnosing a cause of producing serious trouble when an internal combustion engine shows the serious trouble by enabling an individual one of several sensors arranged at the internal combustion engine to be confirmed.SOLUTION: This invention comprises recording means 20 [first recording means 20a and second recording means 20b] constituted to enable operation state information [i] to be recorded and recording and controlling means 21 connected to each of signal lines 11 and constituted to enable the operation state information [i] to be obtained from the signal lines 11 and recorded in the recording means 20. The recording and controlling means 21 is enabled to be communicated with igniter control means 12. The operation state information [i] is obtained from the signal lines 11 on the basis of an abnormal state detecting signal [e] outputted from the igniter control means 12 and recorded in the recording means 20.SELECTED DRAWING: Figure 1 |
