2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) P Code Charts Page 2378

HINT

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

- If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] and [C] again.

- 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.

FAIL-SAFE

When this DTC or other DTCs relating to electronic throttle control system malfunctions, are stored, the ECM enters fail-safe mode. During fail-safe

mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 6锟斤拷 throttle angle by the return spring. The ECM then

adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening

angle, to allow the vehicle to continue at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.

Fail-safe mode continues until a pass condition is detected, and the engine switch is then turned off.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

Inspect the fuses for circuit related to this system before performing the following 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 VALUE USING TECHSTREAM (+BM VOLTAGE)