P0161 means HO2S Heater Control Circuit Low Bank 2 Sensor 2. The DME records it when heater control voltage or current remains electrically low for bank 2 sensor 2; diagnosis must separate an electrical signal fault from a real system fault.
P0160 means O2 Sensor Circuit No Activity Detected Bank 2 Sensor 2. The DME records it when bank 2 sensor 2 shows no usable activity after warm-up; diagnosis must separate an electrical signal fault from a real system fault.
P0140 means O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2. The DME records it when bank 1 sensor 2 shows no usable activity after warm-up; diagnosis must separate an electrical signal fault from a real system fault.
P0057 means HO2S Heater Control Circuit Low Bank 2 Sensor 2. The DME records it when heater control voltage or current remains electrically low for bank 2 sensor 2; diagnosis must separate an electrical signal fault from a real system fault.
P0056 means HO2S Heater Control Circuit Bank 2 Sensor 2. The DME records it when heater current or warm-up response is missing or implausible at bank 2 sensor 2; diagnosis must separate an electrical signal fault from a real system fault.
P0051 means HO2S Heater Control Circuit Low Bank 2 Sensor 1. The DME records it when heater control voltage or current remains electrically low for bank 2 sensor 1; diagnosis must separate an electrical signal fault from a real system fault.
P0050 means O2 Sensor Heater Circuit Malfunction Bank 2 Sensor 1. The DME records it when heater current or warm-up behavior is implausible; diagnosis must separate an electrical signal fault from a real system fault.
P0141 means HO2S Heater Control Circuit Bank 1 Sensor 2. The DME records it when heater current or warm-up response is missing or implausible at bank 1 sensor 2; diagnosis must separate an electrical signal fault from a real system fault.
P0038 means HO2S Heater Control Circuit High Bank 1 Sensor 2. The DME records it when the bank 1 sensor 2 heater control is electrically high or cannot be pulled to its commanded state; diagnosis must separate an electrical signal fault from a real system fault.
P0037 means HO2S Heater Control Circuit Low Bank 1 Sensor 2. The DME records it when heater control voltage or current remains electrically low for bank 1 sensor 2; diagnosis must separate an electrical signal fault from a real system fault.
P0036 means HO2S Heater Control Circuit Bank 1 Sensor 2. The DME records it when heater current or warm-up response is missing or implausible at bank 1 sensor 2; diagnosis must separate an electrical signal fault from a real system fault.
P0032 means HO2S Heater Control Circuit High Bank 1 Sensor 1. The DME records it when the bank 1 sensor 1 heater control is electrically high or cannot be pulled to its commanded state; diagnosis must separate an electrical signal fault from a real system fault.