Electronic control device for vehicle

An electronic control device for a vehicle, the electronic control device being mounted on the vehicle and operable by consuming, when a power supply state of the vehicle is an off state, electric power stored in a battery when the power supply state is an on state, the electronic control device comprising

• a terminal that is able to receive from outside a wake-up signal indicating a request to bring the electronic control device from a sleep state into a wake-up state in which a greater amount of the electric power is consumed than in the sleep state, the electronic control device further comprising
• an execution unit configured to perform:
• a starting process of bringing the electronic control device into the wake-up state based on the wake-up signal received by the terminal;
• a masking process of not bringing the electronic control device into the wake-up state based on the wake-up signal received by the terminal when the power supply state is the off state and a voltage input to the electronic control device is equal to or more than a prescribed voltage determined in advance, when reception of the wake-up signal by the terminal satisfies an abnormal condition determined in advance;
• and
• a canceling process of canceling the masking process when the power supply state is brought from the off state into the on state after the masking process.