Main Controller (MCF) Diagnostic Trouble Codes TM2361 (24JUN08) 9001-10-7 450DLC Excavator Operation and Tests 062608 PN=31 7 ICF Short to Ground Check Disconnect all connectors to main controller (MCF), information controller (ICF), engine control module (ECM) and monitor controller. Check for continuity between information controller (ICF) pin C5 and pins C14 and C15. Check for continuity between information controller (ICF) pin C11 and pins C14 and C15. Is there continuity between CAN circuit and ground circuit? YES: CAN circuit short to ground. Repair or replace harness. See Cab Harness (W1) Wiring Diagram. (Group 9015-10.) NO: Go to Monitor Controller Short to Ground Check.
– – –1/1 9001 10 7 8 Monitor Controller Short to Ground Check Disconnect all connectors to main controller (MCF), information controller (ICF), engine control module (ECM) and monitor controller. Check for continuity between monitor controller pin B7 and pin B11. Check for continuity between monitor controller pin B6 and pin B11. Is there continuity between CAN circuit and ground circuit? YES: CAN circuit short to ground. Repair or replace harness. See Cab Harness (W1) Wiring Diagram. (Group 9015-10.) NO: Go to MCF Short to Power Check.
– – –1/1 9 MCF Short to Power Check Disconnect all connectors to main controller (MCF), information controller (ICF), engine control module (ECM) and monitor controller. Check for continuity between main controller (MCF) pin C4 and pins A1, A12, B7, and B17. Check for continuity between main controller (MCF) pin C15 and pins A1, A12, B7, and B17. Is there continuity between CAN circuit and power circuit? YES: CAN circuit short to power. Repair or replace harness. See Cab Harness (W1) Wiring Diagram. (Group 9015-10.) NO: Go to ECM Short to Power Check.
– – –1/1 10 ECM Short to Power Check Disconnect all connectors to main controller (MCF), information controller (ICF), engine control module (ECM) and monitor controller. Check for continuity between engine control module (ECM) pin 18 (CAN High wire) and engine control module (ECM) pins 2 and 5 (power). Check for continuity between engine control module (ECM) pin 37 (CAN Low wire) and engine control module (ECM) pins 2 and 5 (power). Is there continuity between CAN circuit and power circuit? YES: CAN circuit short to power. Repair or replace harness. See Cab Harness (W1) Wiring Diagram and see Machine Harness (W2) Wiring Diagram. (Group 9015-10.) NO: Go to ICF Short to Power Check. – – –1/1