P0138 on the 2009 Toyota RAV4
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| T-SB-0151-18 | 2019-02-19. Service bulletin. TSB: Some 2009 ? 2012 model year RAV4 and 2010 ? 2011 model year Camry vehicles equipped with 2AR-FE (non-PZEV) engines may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P0138 (Oxygen Sensor Circuit High Voltage [Bank 1 Sensor 2]). This condition may be caused by incorrect air fuel ratio sensor response. The Engine Control Module/ECM (SAE Term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition occurring. Follow the Repair Procedure in this bulletin to address this condition. |
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| T-SB-0001-10 Rev | 2018-04-02. Service bulletin. Some vehicles may exhibit a MIL ?ON? Diagnostic Trouble Code (DTC) P0138 and/or P0158 (Oxygen Sensor Circuit High Voltage Bank 1 or 2). In some instances a P2195 or P2197 (A/F Sensor Signal Stuck Lean) DTC may also be present. This condition may be caused by incorrect Air Fuel Ratio Sensor response. Additionally, a P0606 (ECM/PCM Processor) DTC may be present due to incorrect Oxygen Sensor operation. The following repair procedures should be used to properly diagnose and repair this condition. |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.