| 摘要 |
PROBLEM TO BE SOLVED: To provide an injector controller capable of detecting load short-circuit of an injector even if a battery voltage falls.SOLUTION: An injector controller includes a load short-circuit detector that detects a load short-circuit if an injector drive current value exceeds a first load short-circuit threshold in a first load short-circuit diagnostic detection period for diagnosing a load short-circuit due to shorting both ends of an injector. The first load short-circuit detection threshold is lower than a current diagnostic threshold used for overcurrent diagnosis of an injector drive current in period other than the first load short-circuit diagnostic detection period. |
