Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2011HS 250H L4-2.4L (2AZ-FXE) HYBRIDREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSENGINE CONTROLS - MIL ON/DTC P0136 SET
2011 Lexus HS 250h L4-2.4L (2AZ-FXE) Hybrid
Engine Controls - MIL ON/DTC P0136 Set
2011 Lexus HS 250h L4-2.4L (2AZ-FXE) HybridSECTION Engine Controls - MIL ON/DTC P0136 Set
L-TCI-3140
May 11, 2012
MIL "ON" DTC P0136
Service Category
Engine/Hybrid System
Section
Engine Control
Market
Canada
APPLICABILITY:
INTRODUCTION:
Some 2010 - 2011 model year HS250 vehicles equipped with a 2AZ-FXE engine may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P0136 Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2). The oxygen sensor and Hybrid Vehicle ECU (HV ECU) logic have been modified to reduce the possibility of this condition occurring. Use the following repair procedure to address this condition.
WARRANTY INFORMATION:
CALIBRATION INFORMATION:
PARTS INFORMATION:
REQUIRED TOOLS & EQUIPMENT:
REPAIR PROCEDURE:
© 2012 Lexus, a division of Toyota Motor Sales, Canada
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.