Main Controller (MCF) Diagnostic Trouble Codes TM2361 (24JUN08) 9001-10-15 450DLC Excavator Operation and Tests 062608 PN=39 4 Open Circuit Check Disconnect connector to switch panel. Check continuity between main controller (MCF) connector D pin D15 and switch panel connector pin 2. 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. (Group 9015-10.) – – –1/1 9001 10 15 5 Short Circuit Check Disconnect connector to switch panel. Check continuity between switch panel connector pin 2 and power and ground. Is there continuity to power or ground? YES: Short circuit in harness.
Repair or replace harness. See Cab Harness (W1) Wiring Diagram. (Group 9015-10.) NO: Main controller (MCF) malfunction. Replace main controller. See Main Controller (MCF) Remove and Install. (Group 9015-20). – – –1/1 6 Harness Voltage Check NOTE: Key Switch: ON Disconnect connector to switch panel. Check voltage between switch panel connector pin 1 and machine ground. Is voltage between 4.5—5.5 volts? YES: Open circuit in harness between main controller (MCF) and engine speed dial pin 3. Repair or replace harness. See Cab Harness (W1) Wiring Diagram. (Group 9015-10.) NO: Open circuit in harness between main controller (MCF) and engine speed dial pin 1. Repair or replace harness.
See Cab Harness (W1) Wiring Diagram. (Group 9015-10.) – – –1/1