TM2361 (24JUN08) 9001-10-119 450DLC Excavator Operation and Tests 062608 PN=143 Main Controller (MCF) Diagnostic Trouble Codes 11992.04 — Pump 2 (5-Spool) Control Pressure Sensor Circuit Voltage Low MS12501,000007C –19–17JAN06–1/1 9001 10 ,119 Pump 2 (5-Spool) Control Pressure Sensor Diagnostics Pump 2 (5-spool) control pressure sensor voltage 0.25 volts or less. – – –1/1 1 Sensor Check Switch pump 2 (5-spool) control pressure sensor with another pilot pressure sensor. Clear diagnostic trouble codes (DTC) and re-check DTCs. Does DTC follow pump 2 (5-spool) control pressure sensor? YES: Pump 2 (5-spool) control pressure sensor malfunction. NO: Go to Sensor Circuit Check.
– – –1/1 2 Sensor Circuit Check Disconnect connector of pump 2 (5-spool) control 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 pump 2 (5-spool) control pressure sensor and main controller (MCF). Check continuity between pump 2 (5-spool) control pressure sensor connector pin 2 and main controller (MCF) connector D pin D4. Is there continuity between the pins? YES: Go to Short Circuit Check. NO: Open circuit in harness. Repair or replace harness. Repair or replace harness.
See Cab Harness (W1) Wiring Diagram , see Machine Harness (W2) Wiring Diagram, and see Pump Harness (W8) Wiring Diagram. (Group 9015-10.) – – –1/1