| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve a failure device specifying system in which a diagnosis result is transmitted so as to specify a failure ground unit even with a few signal lines by utilizing a resistance circuit series-connected as a signal line for diagnosis result transmission even when an output of a self-diagnosis result of the ground unit is an on/off signal. <P>SOLUTION: The failure device specifying system includes short circuit constructive relays NRM1-NRM3 which are connected in parallel to either of resistances R1-R3 respectively and are in a conduction state or interruption state depending on either of the self-diagnosis results of the ground unit 30. Presence of failure of the ground unit 30 is determined based on a voltage (24V) and a current in regards to conduction of the resistance circuits R1+R2+R3, and the failure ground unit is specified in determining the failure. <P>COPYRIGHT: (C)2012,JPO&INPIT |
