DTC P1155: Air/Fuel Sensor Heater Circuit (Bank No. 2 Sensor No. 1)
WARNING: This page is about a different car, the 2002 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
For diagnosis and repair procedure, see DTC P1135: AIR/FUEL SENSOR HEATER CIRCUIT (BANK NO. 1 SENSOR NO. 1) OR DTC P1155: AIR/FUEL SENSOR HEATER CIRCUIT (BANK NO. 2 SENSOR NO. 1) .