Test Control rod position transducer Flash code: 6x short Fault indication: Fault indicated by steady light at EDC indicator lamp Fault path: Control rod position transducer Signal too high Signal too low Effect of fault: This fault results in the engine being shut down by setting the con- trol travel to 0. The engine cannot be started if this fault is currently present (EDC control lamp permanently on) Possible cause: Line break, short-circuit, too little capacitance reserve (see page 31), control rod position transducer set incorrectly, injection pump defective Test precondition:
EDC control unit disconnected Socket box connected 43 Test Measurement Corrective measures Test coil Measure resistance at socket box across pin 11 and pin 9 Setpoint: 18–25 Ω – Check lines – Check plug connections – If no fault found, repair injection pump Reference coil Measure resistance at socket box across pin 11 and pin 10 Setpoint: 18–25 Ω Measure resistance at socket box across pin 18 and pin 9 Setpoint: > 10 MΩ Measure resistance at socket box across pin 18 and pin 10 Setpoint:
> 10 MΩ In addition to the possibility of an electrical fault, the fault described here may also be caused by incor- rect setting of the control rod posi- tion transducer – Remove injection pump – Adjust control rod position transducer