TM2361 (24JUN08) 9001-10-121 450DLC Excavator Operation and Tests 062608 PN=145 Main Controller (MCF) Diagnostic Trouble Codes 11993.03 — Travel Left Pilot Pressure Sensor Circuit Voltage High MS12501,000007D –19–17JAN06–1/1 9001 10 ,121 Travel Left Pilot Pressure Sensor Diagnostics Travel left pilot pressure sensor voltage 4.75 volts or higher. – – –1/1 1 Sensor Check Switch travel left pilot pressure sensor with another pilot pressure sensor. Clear diagnostic trouble codes (DTC) and re-check DTCs. Does DTC follow travel left pilot pressure sensor? YES: Travel left pilot pressure sensor malfunction. Replace sensor. NO: Go to Sensor Circuit Check.
– – –1/1 2 Sensor Circuit Check Disconnect connector of travel left pilot pressure sensor. Check voltage between terminals 1 and 3 of harness. Is voltage between 4.5—5.5 volts? NOTE: Key Switch: ON YES: Go to Open Circuit Check. NO: Go to Harness Voltage Check. – – –1/1 3 Open Circuit Check Disconnect harness from travel left pilot pressure sensor and main controller (MCF). Check continuity between travel left pilot pressure sensor connector pin 2 and main controller (MCF) connector D pin D14. 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 and see Machine Harness (W2) Wiring Diagram. (Group 9015-10.) – – –1/1