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 MANUALSLEXUS2006RX 400H AWD V6-3.3L (3MZ-FE) HYBRIDREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSSENSORS AND SWITCHES - COMPUTERS AND CONTROL SYSTEMSOXYGEN SENSORSERVICE AND REPAIRHEATED OXYGEN SENSOR
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) Hybrid
Heated Oxygen Sensor
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) HybridSECTION Heated Oxygen Sensor
REMOVAL
1. REMOVE OXYGEN SENSOR (for Bank 1)
a. Disconnect the oxygen sensor connector and clamp.
b. Using SST, remove the oxygen sensor from the exhaust pipe assembly front No.3.
SST 09224-00010
NOTE: Do not damage the oxygen sensor.
2. REMOVE OXYGEN SENSOR (for Bank 2)
a. Disconnect the oxygen sensor connector.
b. Using SST, remove the oxygen sensor from the exhaust pipe assembly front.
SST 09224-00010
NOTE: Do not damage the oxygen sensor.
INSTALLATION
1. INSTALL OXYGEN SENSOR (for Bank 1)
a. Temporarily tighten the oxygen sensor to the exhaust pipe sub-assembly front No.3.
NOTE: Do not damage the oxygen sensor.
b. Using SST, fully tighten the oxygen sensor to the exhaust pipe sub-assembly front No.3.
SST 09224-00010
Torque: 44 N.m (449 kgf.cm, 32 ft.lbf)
c. Connect the oxygen sensor connector and clamp.
2. INSTALL OXYGEN SENSOR (for Bank 2)
a. Temporarily tighten the oxygen sensor to the exhaust pipe sub-assembly front.
NOTE: Do not damage the oxygen sensor.
b. Using SST, fully tighten the oxygen sensor to the exhaust pipe sub-assembly front.
SST 09224-00010
Torque: 44 N.m (449 kgf.cm, 32 ft.lbf)
c. Connect the oxygen sensor connector.
1. REMOVE OXYGEN SENSOR (for Bank 1)
a. Disconnect the oxygen sensor connector and clamp.
b. Using SST, remove the oxygen sensor from the exhaust pipe assembly front No.3.
SST 09224-00010
NOTE: Do not damage the oxygen sensor.
2. REMOVE OXYGEN SENSOR (for Bank 2)
a. Disconnect the oxygen sensor connector.
b. Using SST, remove the oxygen sensor from the exhaust pipe assembly front.
SST 09224-00010
NOTE: Do not damage the oxygen sensor.
INSTALLATION
1. INSTALL OXYGEN SENSOR (for Bank 1)
a. Temporarily tighten the oxygen sensor to the exhaust pipe sub-assembly front No.3.
NOTE: Do not damage the oxygen sensor.
b. Using SST, fully tighten the oxygen sensor to the exhaust pipe sub-assembly front No.3.
SST 09224-00010
Torque: 44 N.m (449 kgf.cm, 32 ft.lbf)
c. Connect the oxygen sensor connector and clamp.
2. INSTALL OXYGEN SENSOR (for Bank 2)
a. Temporarily tighten the oxygen sensor to the exhaust pipe sub-assembly front.
NOTE: Do not damage the oxygen sensor.
b. Using SST, fully tighten the oxygen sensor to the exhaust pipe sub-assembly front.
SST 09224-00010
Torque: 44 N.m (449 kgf.cm, 32 ft.lbf)
c. Connect the oxygen sensor connector.
RENDER: 1.0x
NO RELATED
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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.