TM2361 (24JUN08) 9001-10-36 450DLC Excavator Operation and Tests 062608 PN=60 Main Controller (MCF) Diagnostic Trouble Codes Pump 2 (5-Spool) Control Solenoid Diagnostics Pump 2 (5-spool) control solenoid current 920 mA or higher. 9001 10 36 – – –1/1 1 Solenoid Resistance Check Disconnect harness connector from pump 2 (5-spool) control solenoid. Check resistance of solenoid. Is resistance between 14—21 ohms? YES: Go to Continuity Check. NO: Pump 2 (5-spool) control solenoid malfunction. Replace solenoid. – – –1/1 2 Continuity Check Disconnect harness connectors from main controller (MCF) and pump 2 (5-spool) control solenoid.
Check for continuity between main controller (MCF) connector A pin A30 and pump 2 (5-spool) control solenoid harness connector pin 1. Check for continuity between main controller (MCF) connector A pin A19 and pump 2 (5-spool) control solenoid harness connector pin 2. Is there continuity between the pins? YES: Go to Solenoid Function Check. NO: Open circuit in 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 3 Solenoid Function Check Switch pump 2 (5-spool) control solenoid with pump 1 (4-spool) control solenoid.
Clear diagnostic trouble codes (DTC) and re-check for DTC. Does diagnostic trouble code follow pump 2 (5-spool) control solenoid? IMPORTANT: Pump learning procedure must be performed after removing or replacing pump control solenoids. YES: Pump 2 (5-spool) control solenoid malfunction. Replace solenoid. NO: Main controller (MCF) malfunction. Replace controller. See Main Controller (MCF) Remove and Install. (Group 9015-20.) – – –1/1