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P1155 Diagnostic Trouble Code Discussion for February 2006

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
2001 Toyota Avalon XL 3.0L MIL Lamp on VIN: 4T1BF28861
P1155: Air Fuel Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction. ... later. Sets P1135 and P1155 consistently. Both are A/F heater circuit problems. Shop manual says can be set by either less than 0.25A or 8 amps or more. We did pinpoint tests of both heater circuits per shop manual. Finally, g...
February 14, 2006