11981.04 Fan Reversing Solenoid Valve 2 Feedback Current Low MS12501,0000072 –19–17JAN06–1/1 Fan Reversing Solenoid 2 Diagnostics Hydraulic fan reversing solenoid current 56 mA or less. –1/1 TM2361 (24JUN08) 9001-10-94 450DLC Excavator Operation and Tests 062608 PN=118 Main Controller (MCF) Diagnostic Trouble Codes 11981.03 — Fan Reversing Solenoid Valve 2 Feedback Current High 9001 10 94 MS12501,0000071 –19–17JAN06–1/1 Fan Reversing Solenoid 2 Diagnostics Hydraulic fan reversing solenoid current 920 mA or higher. – – –1/1 1 Solenoid Resistance Check Disconnect harness connector from fan reversing solenoid 2. Check resistance of solenoid. Is resistance between 40—60 ohms? YES:
Go to Continuity Check. NO: Fan reversing solenoid 2 malfunction. – – –1/1 2 Continuity Check Disconnect harness connectors from main controller (MCF) and fan reversing solenoid 2. Check for continuity between main controller (MCF) connector A pin A32 and fan reversing solenoid 2 harness connector pin 1. Check for continuity between main controller (MCF) connector A pin A29 and fan reversing solenoid 2 harness connector pin 2. Is there continuity between the pins? YES: Fan reversing solenoid 2 malfunction. NO: Open circuit in harness. Repair or replace harness. See Cab Harness (W1) Wiring Diagram.
(Group 9015-10.) – – –1/1 1 Solenoid Resistance Check Disconnect harness connector from fan reversing solenoid 2. Check resistance of solenoid. Is resistance between 40—60 ohms? YES: Go to Continuity Check. NO: Fan reversing solenoid 2 malfunction. – – –1/1