Harness Diagnostics –1/1 TM2361 (24JUN08) 9001-40-6 450DLC Excavator Operation and Tests 062608 PN=194 Air Conditioner Controller (ACF) Diagnostic Trouble Codes E18 — Solar Sensor Abnormal Solar sensor short circuit. 9001 40 6 LD30992,00002DB –19–15MAR06–1/1 1 Connector Check Check harness connection to solar sensor and air conditioner and heater controller. Are connectors clean and free from debris? Are pins straight and do they make a good connection? YES: Go to Short Circuit Check. NO: Repair or replace connector or pins. – – –1/1 2 Short Circuit Check Disconnect harness from solar sensor and air conditioner and heater controller.
Check continuity between appropriate pins on air conditioner and heater controller connector and machine ground. Is there continuity to ground? YES: Repair or replace harness. See Cab Harness (W1) Wiring Diagram, see Monitor Harness (W3) Wiring Diagram, and See Air Conditioner Harness (W6) Wiring Diagram. (Group 9015-10.) NO: Go to Continuity Check. – – –1/1