| 摘要 |
When a predetermined diagnosis beginning condition is satisfied, a conversion value converted from a signal from a fuel level sensor is compared with a predetermined value, and a detection of a fluctuation is counted in accordance with the comparison. When a fluctuation detection duration exceeds a predetermined period and a fluctuation detection counter value exceeds a first predetermined number, a noisy failure occurrence is counted and a noisy failure of the fuel level sensor is warned of in the case that the noisy failure counter value exceeds the second predetermined number.
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