Test Fuel-delivery regulator Flash code: 10x short Fault indication: Fault indicated by steady light at EDC indicator lamp Fault path: Fuel delivery controller control deviation Effect of fault: The setpoint – actual value comparison for activating the fuel deliv- ery regulator has resulted in a control deviation which has exceeded a specified time threshold. This fault results in the engine being shut down. The engine can only be restarted when the fault is no longer present and the “ignition” is switched off and on again once Possible cause:
Line break, short-circuit, injection pump defective (internal fault in control unit or stiff movement), capacitance reserve of line leading to control rod position transducer too low (see page 31) Test precondition: EDC control unit disconnected Socket box connected 45 Test Measurement Corrective measures Actuating solenoid Measure resistance at socket box across pin 15 and pin 1 and pin 16 and pin 2 Setpoints: 0.7–1.3 Ω Measure resistance at socket box across pin 18 and pin 1 Setpoint: >10 MΩ – Check lines – Check plug connections – If no fault found, replace injection pump