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P0581-HIGH VOLTAGE DETECTED AT THE SPEED CONTROL SWITCH (CONTINUED) 9. S/C SWITCH GROUND CIRCUIT OPEN ECM TO CLOCKSPRING Measure the resistance of the S/C Switch Sensor Ground Circuit Is the resistance below 5.0 ohms? Yes >> Replace and program the ECM in accordance with the Service Information. Perform POWERTRAIN VERIFICATION TEST VER - 1 No >> Repair open ground circuit from ECM to clockspring. Perform POWERTRAIN VERIFICATION TEST VER - 1 9 - 1342 ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL DR/DH |