Monitor Controller (MON) Diagnostic Trouble Codes 13311.04 Open circuit in Fuel Level Sensor MS12501,0000043 –19–26MAY06–1/1 Fuel Level Sensor Diagnostics Fuel Level Sensor Shorted to Ground. –1/1 TM2361 (24JUN08) 9001-50-13 450DLC Excavator Operation and Tests 062608 PN=213 3 Continuity Check Disconnect fuel level sensor and monitor from harnesses. Check continuity between fuel level sensor connector and monitor controller connector pin C2. Is there continuity between fuel level sensor and monitor controller? YES: Monitor controller malfunction. Replace controller. See Monitor Controller Remove and Install. (Group 9015-20.) NO: Open circuit in harness. Repair or replace harness.
See Cab Harness (W1) Wiring Diagram, see Machine Harness (W2) Wiring Diagram, and see Monitor Harness (W3) Wiring Diagram. (Group 9015-10.) – – –1/1 9001 50 13 1 Resistance Check Disconnect fuel level sensor and check sensor resistance. Is sensor resistance within specifications? Fuel Level Sensor Float Position Resistance (Ohms) Upper Limit (FULL) 6-10 3 / 4 26 1 / 2 33-43 1 / 4 53 Alarm Level 82-88 Lower Limit (EMPTY) 90-100 YES: Go to Short to Ground Check NO: Fuel level sensor malfunction. Replace sensor. – – –1/1 Fuel Level Sensor Float Position Resistance (Ohms) Upper Limit (FULL) 6-10 3 / 4 26 1 / 2 33-43 1 / 4 53 Alarm Level 82-88 Lower Limit (EMPTY) 90-100