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Description NCEC0180 SYSTEM DESCRIPTION NCEC0180S01 Sensor Input Signal to ECM ECM func- tion Actuator Camshaft position sensor Engine speed Heated Heated oxygen sensor 2 heater The ECM performs ON/OFF control of the heated oxygen sensor 2 heater (rear) corresponding to the engine OPERATION NCEC0180S02 Engine speed rpm Heated oxygen sensor 2 heater (rear) Above 3,600 OFF Below 3,600 ON CONSULT-II Reference Value in Data Monitor NCEC0181 Specification data are reference values. MONITOR ITEM CONDITION SPECIFICATION HO2S2 HTR (B1) I Ignition switch: ON (Engine stopped) I Engine speed: Above 3,600 rpm OFF I Engine speed: Below 3,600 rpm [After driving for 2 minutes at a ON ECM Terminals and Reference Value NCEC0182 Specification data are reference values and are measured between each terminal and ground. CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam- TERMI- NAL NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage) 3 R/Y Heated oxygen sensor 2 [Engine is running] I Engine speed is below 3,600 rpm I After driving for 2 minutes at a speed of 70 km/h 0 - 1.0V [Ignition switch “ON”] I Engine stopped [Engine is running] I Engine speed is above 3,600 rpm BATTERY VOLTAGE On Board Diagnosis Logic NCEC0183 DTC No. Malfunction is detected when ... Check Items (Possible Cause) P0141 I The current amperage in the heated oxygen sensor 2 I Harness or connectors I Heated oxygen sensor 2 heater (rear) GI MA EM LC FE CL MT AT AX SU BR ST RS BT HA SC EL IDX DTC P0141 HEATED OXYGEN SENSOR 2 HEATER (REAR) Description EC-267 |