How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ron Z. Your Own Question
Ron Z.
Ron Z., - Lexus Tech -
Category: Lexus
Satisfied Customers: 18778
Experience:  18+yrs experience. State Inspector and Lexus Diagnostics
Type Your Lexus Question Here...
Ron Z. is online now
A new question is answered every 9 seconds

On my 2002 Lexus GS300 I have a OBD code of P0161. What part

Resolved Question:

On my 2002 Lexus GS300 I have a OBD code of P0161. What part needs to be replaced?
Submitted: 7 years ago.
Category: Lexus
Expert:  Ron Z. replied 7 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.


Ron Z. and 2 other Lexus Specialists are ready to help you