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EC-170 [QG (WITH EURO-OBD)] DTC P0037, P0038, P0057, P0058 HO2S2 HEATER (A/T MODELS) DTC P0037, P0038, P0057, P0058 HO2S2 HEATER (A/T MODELS) PFP:226A0 Description EBS00QIF SYSTEM DESCRIPTION The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed, OPERATION CONSULT-II Reference Value in Data Monitor Mode EBS00QIG Specification data are reference values. On Board Diagnosis Logic EBS00QIH DTC Confirmation Procedure EBS00QII NOTE: WITH CONSULT-II 1. Turn ignition switch “ON” and select “DATA MONITOR” mode with CONSULT-II. Sensor Input Signal to ECM ECM Function Actuator Camshaft position sensor (PHASE) Engine speed Heated oxygen sensor 2 Heated oxygen sensor 2 heater Crankshaft position sensor (POS) Engine coolant temperature sensor Engine coolant temperature Mass air flow sensor Amount of intake air Engine speed rpm Heated oxygen sensor 2 heater Above 3,600 OFF ● Below 3,600 rpm after the following conditions are met. – Engine: After warming up – Keeping the engine speed between 3,500 and 4,000 rpm for ON MONITOR ITEM CONDITION SPECIFICATION HO2S2 HTR (B1) ● Engine speed: Below 3,600 rpm after the following conditions are met. – Engine: After warming up – Keeping the engine speed between 3,500 and 4,000 rpm for one minute ON ● Engine speed: Above 3,600 rpm OFF DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0037 Heated oxygen sensor 2 The current amperage in the heated oxygen sensor ● Harness or connectors ● Heater oxygen sensor 2 heater P0057 P0038 Heated oxygen sensor 2 The current amperage in the heated oxygen sensor ● Harness or connectors ● Heater oxygen sensor 2 heater P0058 |