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P1155 Diagnostic Trouble Code Discussion for January 2009

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


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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
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