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System Description NCEC0505 COOLING FAN CONTROL NCEC0505S01 Sensor Input Signal to ECM ECM func- tion Actuator Vehicle speed sensor Vehicle speed Cooling fan Cooling fan relay(s) Engine coolant temperature sensor Engine coolant temperature Air conditioner switch Air conditioner “ON” signal Ignition switch Start signal Refrigerant pressure sensor Refrigerant pressure The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refriger- OPERATION NCEC0505S02 SEF932X CONSULT-II Reference Value in Data Monitor NCEC0506 Specification data are reference values. MONITOR ITEM CONDITION SPECIFICATION AIR COND SIG I Engine: After warming up, idle Air conditioner switch: OFF OFF Air conditioner switch: ON ON GI MA EM LC FE CL MT AT AX SU BR ST RS BT HA SC EL IDX DTC P0217 COOLANT OVERTEMPERATURE ENRICHMENT PROTECTION System Description EC-291 |