TM2361 (24JUN08) 9001-10-131 450DLC Excavator Operation and Tests 062608 PN=155 Main Controller (MCF) Diagnostic Trouble Codes Arm Out Pilot Pressure Sensor Diagnostics Arm out pilot pressure sensor voltage 0.25 volts or less. – – –1/1 9001 10 ,131 1 Sensor Check Switch arm out pilot pressure sensor with another pilot pressure sensor. Clear diagnostic trouble codes (DTC) and re-check DTCs. Does DTC follow arm out pilot pressure sensor? YES: Arm out pilot pressure sensor malfunction. Replace sensor. NO: Go to Sensor Circuit Check. – – –1/1 2 Sensor Circuit Check Disconnect connector of arm out 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 arm out pilot pressure sensor and main controller (MCF). Check continuity between arm out pilot pressure sensor connector pin 2 and main controller (MCF) connector D pin D5. 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