DTC P0161 - O2 Sensor Heater Circuit (Bank 2 Sensor 2)

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P0161 - O2 SENSOR HEATER CIRCUIT (BANK 2 SENSOR 2)

Description:	This DTC sets when an open or short circuit is detected or the universal heated oxygen sensor bank 2, sensor 2 (HO2S22) heater current draw exceeds a calibrated limit.
Possible Causes:	HTR22 circuit open HTR22 circuit short to voltage VPWR circuit open GND circuit open Low battery voltage Water in the harness connector Corrosion Incorrect connections Damaged HO2S22 heater
Diagnostic Aids:	Inspect the connectors for signs of damage, water intrusion or corrosion.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST DW .