An electronic control apparatus includes a switching element having a control terminal; an ON-drive constant-current circuit for supplying a constant current to the control terminal, thereby charging the control terminal of the switching element with electrical charge; an OFF-drive switching element for discharging electrical charge from the control terminal of the switching element by being turned ON; and a control circuit adapted to control the ON-drive constant-current circuit and the OFF-drive switching element in response to a drive signal being inputted, thereby controlling the voltage of the control terminal of the switching element to drive the switching element. The ON-drive constant-current circuit includes a current control transistor and a current detection element. The control circuit controls the current control transistor based on the voltage of the current detection resistor and detects abnormality in the ON-drive constant-current circuit based on a source-drain voltage of the current control transistor.