kingtut

Yes, the light on the dash shows the proper selection of the gear all the time, and the transmission shifts fine.

Thank you for the info. It looks like the Lexus dealer gave me the wrong info. So that code is a transmission circuit error? No wonder that i changed the O2 sensor & the light is still on. Do you know if this a major repair?

Thank you for the info. It looks like the Lexus dealer gave me the wrong info. So that code is a transmission sensor error? No wonder that i changed the O2 sensor & the light is still on.

I called the Lexus dealer, and the Rep told me that the code is for either O2 sensor or Mass Airflow Sensor.

Anyone know how to reset the ECU to turn off the check engine light?

'Check Engine' light came on and stayed on 2 wks ago. If engine is turned off and back on w/in 15 minutes, the 'Check Engine' lights up and 'O/D Off' contininuously flashes. I took it to a local repair shop, who checked it and indicated that it may be a transmission problem. They tested drove the car and no problem with the shiftings or transmission. The local repair shop reset the light. Two days later the same lights come back on. I just took my car for a smog check. The computer from the smog check place indicated the manufacture code of P1705 for the check engine light. Anyone know what this code # means?