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Ron Z.
Ron Z., - Lexus Tech -
Category: Lexus
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Experience:  18+yrs experience. State Inspector and Lexus Diagnostics
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On my 2002 Lexus GS300 I have a OBD code of P0161. What part

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On my 2002 Lexus GS300 I have a OBD code of P0161. What part needs to be replaced?
Submitted: 6 years ago.
Category: Lexus
Expert:  Ron Z. replied 6 years ago.

P0161 - Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)

This code is pointing to the heater circuit that is built into the oxygen sensor. This heater is commanded on by the PCM on cold-start situations to get the oxygeen sensor up to normal operating conditions within a matter of seconds. Replacing this sensor should solve your problem.


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