E45 Abnormal Damper Abnormal air conditioner and heater internal and external servomotor. AH91621,0000172 –19–15MAR06–1/1 Harness Diagnostics –1/1 TM2361 (24JUN08) 9001-40-10 450DLC Excavator Operation and Tests 062608 PN=198 Air Conditioner Controller (ACF) Diagnostic Trouble Codes Harness Diagnostics 9001 40 10 – – –1/1 1 Connector Check Check harness connection to servomotor 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 Open Circuit Check. NO: Repair or replace connector or pins. – – –1/1 2 Open Circuit Check Disconnect harness from servomotor and air conditioner and heater controller.
Check continuity between pins on controller and servomotor connector. Is there continuity on the appropriate pins? IMPORTANT: Some wires between air conditioner controller and air conditioner servomotor are spliced with other control, power, and ground circuits. Use caution when checking and testing wires. YES: Air conditioner and heater mixer servomotor malfunction. NO: Repair or replace harness. See Air Conditioner Harness (W6) Wiring Diagram. (Group 9015-10.) – – –1/1 1 Connector Check Check harness connection to servomotor 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 Open Circuit Check. NO: Repair or replace connector or pins. – – –1/1