TM2361 (24JUN08) 9001-10-141 450DLC Excavator Operation and Tests 062608 PN=165 Main Controller (MCF) Diagnostic Trouble Codes Bucket Curl Pilot Pressure Sensor Diagnostics Bucket curl pilot pressure sensor voltage 4.75 volts or higher. – – –1/1 9001 10 ,141 1 Sensor Check Switch bucket curl pilot pressure sensor with another pilot pressure sensor. Clear diagnostic trouble codes (DTC) and re-check DTCs. Does DTC follow bucket curl pilot pressure sensor? YES: Bucket curl pilot pressure sensor malfunction. Replace sensor. NO: Go to Sensor Circuit Check. – – –1/1 2 Sensor Circuit Check Disconnect connector of bucket curl pilot pressure sensor. Check voltage between terminals 1 and 3 of harness.
Is voltage between 4.5—5.5 volts? NOTE: Key Switch: ON YES: Go to Open Circuit Check. NO: Go to Harness Voltage Check. – – –1/1 3 Open Circuit Check Disconnect harness from bucket curl pilot pressure sensor and main controller (MCF). Check continuity between bucket curl pilot pressure sensor connector pin 2 and main controller (MCF) connector C pin C2. Is there continuity between the pins? YES: Go to Short Circuit Check. NO: Open circuit in harness. Repair or replace harness. See Cab Harness (W1) Wiring Diagram and see Machine Harness (W2) Wiring Diagram. (Group 9015-10.) – – –1/1