Causes and Fixes of a Toyota P0155 Code: Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) Heater Circuit Malfunction.
O2 Sensor removal tool on Amazon: [ Ссылка ]

Possible Causes of a Toyota P0155 Code:
Failed O2 (A/F) Sensor
Wiring Open or Short
Blown Fuse

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