Patent ID: 8296044

Claim:
A method for the localization of a fault location within a fuel injection system with a control unit, which actuates injectors, a diagnostic unit for the detection of a defect within the fuel injection system, a measuring unit for determining at least one of voltage levels and charge levels and with a separation unit for separation of the control unit from the injectors, the method comprising the steps of: after a defect detected within the fuel injection system by the diagnostic unit, transmitting at least one pulse of defined energy content and duration to each injector by means of the control unit, identifying a defective injector by the measuring unit by determining at least one of a voltage value and charge value at the injector which is outside a prescribed range, and identifying a defect affecting at least one of connection components and power components from the fact that at least one of the voltage value and the charge value determined at the injector falls below a prescribed limit value.