2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) P Code Charts Page 2543

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

- Shift the transmission to 2nd gear [C].

- Accelerate the vehicle to 40 mph (64 km/h) or more by depressing the accelerator pedal for at least 10 seconds [D].

- Soon after performing step [D] above, release the accelerator pedal for at least 4 seconds without depressing the brake pedal in order to

execute fuel-cut control [E].

HINT

Fuel-cut is performed when the following conditions are met:

- Accelerator pedal is fully released.

- Engine speed is 2500 rpm or more (fuel injection returns at 1000 rpm).

- Allow the vehicle to decelerate until the vehicle speed decreases to less than 6 mph (10 km/h).

- Repeat steps [C] through [E] above at least 3 times in one driving cycle.

- Enter the following menus: Powertrain / Engine / Utility / All Readiness.

- Input the DTC: P2195, P2196, P2197 or P2198.

- Check the DTC judgment result [F].

HINT

- If the judgment result shows ABNORMAL, the system has a malfunction.

- If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [F].

- If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.

- Read Pending DTCs.

HINT

If a pending DTC is output, the system is malfunctioning.

- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs

See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/DTC

Check / Clear.

HINT

- If a permanent DTC is output, the system is malfunctioning.

- If no permanent DTC is output, the system is normal.

INSPECTION PROCEDURE

HINT

Malfunctioning areas can be identified by performing the Control the Injection Volume for A/F Sensor function provided in the

Active Test. The Control the Injection Volume for A/F Sensor function can help to determine whether the air fuel ratio sensor,

heated oxygen sensor and other potential trouble areas are malfunctioning.

The following instructions describe how to conduct the Control the Injection Volume for A/F Sensor operation using the Techstream.

- Connect the Techstream to the DLC3.

- Start the engine.

- Turn the Techstream on.

- Warm up the engine at an engine speed of 2500 rpm for approximately 90 seconds.