2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) P Code Charts Page 2517

- Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor.

- Perform the Active Test operation with the engine idling (press the RIGHT or LEFT button to change the fuel injection volume).

- Monitor the output voltages of the air fuel ratio and heated oxygen sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S

B2S2) displayed on the Techstream.

HINT

- The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the

injection volume by 25%.

- Each sensor reacts in accordance with increases in the fuel injection volume.

NOTICE:

The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of

approximately 20 seconds.

- Following the Control the Injection Volume for A/F Sensor procedure enables technicians to check and graph the voltage outputs of both the

air fuel ratio and heated oxygen sensors.