Patent ID: 6853295

Claim:
A vehicular control unit with a self shut-off function and an abnormality detection function, comprising: a main power supply voltage detecting section to detect a voltage value of a main power supply; a self shut-off controlling section that executes a shut-off process upon receipt of a supply of a continuous power supply from a power supply control circuit and, thereafter, stops the supply of the continuous power supply, when the detected voltage value of the main power supply is equal to or lower than a preset value with an ignition key switch turned off, the self shut-off controlling section comprising: an abnormality determining section that determines an abnormality occurs in the main power supply voltage detecting section when the main power supply voltage detecting section negatively detects the voltage value of the main power supply; and a power supply stop command output section that outputs a command to stop the supply of the continuous power supply to the power supply control circuit without an execution of the shut-off process when the abnormality determining section determines that the abnormality occurs in the main power supply voltage detecting section.