Main Controller (MCF) Diagnostic Trouble Codes TM2361 (24JUN08) 9001-10-91 450DLC Excavator Operation and Tests 062608 PN=115 22 DTC Check Connect connector to main controller (MCF). Clear diagnostic trouble codes (DTC) and re-check for DTCs. Is DTC 11920.02-Fuel Flow Rate Message Error still present? YES: Main controller (MCF) malfunction. Replace. See Main Controller (MCF) Remove and Install. (Group 9015-20.) NO: Check harness connection to main controller (MCF). – – –1/1 9001 10 91 23 ICF CAN Resistance Check Connect all connectors except information controller (ICF) connector C (X34). Check resistance between pin C5 and C11. Is resistance between 50—70 Ω. YES: Go to DTC Check. NO:
Go to ECM CAN Resistance Check. – – –1/1 24 DTC Check Connect connector to information controller (ICF). Clear diagnostic trouble codes (DTC) and re-check for DTCs. Is DTC 11920.02-Fuel Flow Rate Message Error still present? YES: information controller (ICF) malfunction. Replace. See Information Controller (ICF) Remove and Install. (Group 9015-20.) NO: Check harness connection to information controller (ICF). – – –1/1 25 ECM CAN Resistance Check Connect all connectors except engine control module (ECM) connector. Check resistance between pin 18 (CAN High) and pin 37 (CAN Low) wires in connector. Is resistance between 110—130 Ω? YES: Go to DTC Check. NO:
Go to Monitor Controller CAN Resistance Check. – – –1/1 26 DTC Check Connect connector to engine control module (ECM). Clear diagnostic trouble codes (DTC) and re-check for DTCs. Is DTC 11920.02-Fuel Flow Rate Message Error still present? YES: Engine control module (ECM) malfunction. Replace. See Engine Control Module (ECM) Remove and Install. (Group 9015-20.) NO: Check harness connection to engine control module (ECM). – – –1/1