P0135 Code: Heated O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1) - In The Garage with CarParts.com
Toyota Sienna Service Manual: Oxygen Sensor Heater Control Circuit - Diagnostic trouble code chart - Sfi system - 2Gr-fe engine control system - Engine
How To: PO155 O2 Oxygen Sensor Heater Circuit Bank 2 Sensor 1 - Replacement Install | IH8MUD Forum