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What is fault code P0161 in Chevy Tahoe?

Updated: 10/24/2022

Wiki User

∙ 11y ago

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Here is what I have on it:

DTC Code P0161DTC Code:P0161Description: Oxygen Sensor Heater Circuit (Bank 2, Sensor 2)Probable Causes:

Sensor or solenoid faulty
Connector terminal contact is damaged or corroded
Wire harness - Check harness for correct voltage, open, short to ground or short to voltage
Update control unit software - Check for the latest control unit update
Powertrain or Engine Control Module faulty
Open fuse

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