Main Controller (MCF) Diagnostic Trouble Codes 11982.03 Fan Reversing Solenoid Valve 1 Feedback Current High MS12501,0000073 –19–17JAN06–1/1 Fan Reversing Solenoid 1 Diagnostics Hydraulic fan reversing solenoid current 920 mA or higher. –1/1 TM2361 (24JUN08) 9001-10-95 450DLC Excavator Operation and Tests 062608 PN=119 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 9001 10 95 1 Solenoid Resistance Check Disconnect harness connector from fan reversing solenoid 1. Check resistance of solenoid. Is resistance between 40—60 ohms? YES: Go to Continuity Check. NO: Fan reversing solenoid 1 malfunction. – – –1/1 2 Continuity Check Disconnect harness connectors from main controller (MCF) and fan reversing solenoid 1. Check for continuity between main controller (MCF) connector A pin A31 and fan reversing solenoid 1 harness connector pin 1.
Check for continuity between main controller (MCF) connector A pin A5 and fan reversing solenoid 1 harness connector pin 2. Is there continuity between the pins? YES: Fan reversing solenoid 1 malfunction. NO: Open circuit in harness. Repair or replace harness. See Cab Harness (W1) Wiring Diagram, see Machine Harness (W2) Wiring Diagram, and see Engine Interface Harness (W5) Wiring Diagram. (Group 9015-10.) – – –1/1