2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) P Code Charts Page 1926

- Connect the Techstream to the DLC3.

- Turn the engine switch on (IG) and turn the Techstream on.

- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) See: Powertrain Management/Computers and Control

Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/DTC Check / Clear.

- Turn the engine switch off.

- Turn the engine switch on (IG) and turn the Techstream on [A].

- Wait 5 seconds or more.

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

- Input the DTC: P0657.

- Check the DTC judgment result [B].

HINT

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

- 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

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data

the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary,

if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

1. READ DTC OUTPUT (DTC P0657)