× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P1155 Diagnostic Trouble Code Discussion for January 2009

Air Fuel Ratio Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1155
Help Request Posted
2000 Lexus RX300 3.0L MIL Lamp on VIN: JT6HFOUXYO
P1155: A/F sensor heater malfunction bank2 sen.1. Customer had before mentioned parts replaced by other shops. We check and found Aifr fuel sensor voltage won't change much. 3.29 to 3.3V no matter what. With new air fuel sensors in I tried used ECU. Same problem. I then tried another denso A/F sensor. Still c...
January 26, 2009