Inspection [12/2023 - ]: Procedure
WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1)
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(Air Fuel Ratio Sensor)Standard Resistance
Tester Connection Condition Specified Condition Result 1 (+B) - 2 (HA1A) 20°C (68°F) 1.6 to 3.2 Ω Ω 2 (HA1A) - 3 (A1A-) Always 10 kΩ or higher kΩ If the result is not as specified, replace the air fuel ratio sensor.
- Measure the resistance according to the value(s) in the table below.