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Battery voltage 10.5 V or higher Engine Running Starter OFF Catalyst active A/F control Not operating Time after heater ON 10 seconds or more Learned heater OFF current operation Complete Learned heater OFF current operation Succeeded Heated oxygen sensor heater high current failure (P0038, P0058) Not detected P0037 and P0057 (Case 2) Monitor runs whenever following DTCs not stored None Battery voltage 10.5 V or higher Engine Running Starter OFF Catalyst active A/F control Not operating Time after heater ON 10 seconds or more Learned heater OFF current operation Complete Heated oxygen sensor heater OFF current Higher than 3.5 A Hybrid IC high current limiter monitor Fail Heated oxygen sensor heater current failure (P0037, P0038, P0057, P0058) Not detected P0038 and P0058 Monitor runs whenever following DTCs not stored None Battery voltage 10.5 V or higher Engine Running Starter OFF Catalyst active A/F control Not operating Time after heater ON 10 seconds or more Learned heater OFF current operation Complete P0141 and P0161 Monitor runs whenever following DTCs not stored P0031, P0032, P0051, P0052 (Air fuel ratio sensor heater) P0037, P0038, P0057, P0058 (Rear oxygen sensor heater) P101D, P102D, P103D, P105D (Air fuel ratio sensor heater) Battery voltage 10.5 V or higher Fuel cut OFF Time after fuel cut ON to OFF 30 seconds or more 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0037,P0038... |