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Code : P102D
Make : LEXUS
Description : P102D LEXUS O2 Sensor Heater Circuit Performance Bank 1 Sensor 2 Stuck ON
Possible causes :
– Faulty O2 Sensor Heater Bank 2 Sensor 2
– O2 Sensor Heater Bank 2 Sensor 2 harness is open or shorted
– O2 Sensor Heater Bank 2 Sensor 2 circuit poor electrical connection
– Faulty Engine Control Module (ECM)
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.

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