Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Throttle/Pedal Position Sensor "A" Minimum Stop Performance (P210900)

HINT:

• This malfunction is only detected once per trip. After it has been detected once, the system will not monitor for the malfunction for the rest of the trip.
• The system uses the throttle body with motor assembly and mass air flow meter sub-assembly to detect this malfunction.

1. The mass air flow meter sub-assembly is normal.
2. Atmospheric pressure is 85 kPa(abs) [12.3 psi(abs)] or higher.
3. The vehicle has been driven at a speed of 30 km/h (18.7 mph) or more at least once.
4. The engine coolant temperature is 45°C (113°F) or less at engine start, the engine is warmed up and conditions for Throttle Air Flow F/B Value are met, or the engine switch has been turned on (IG) (include engine running) for 1 hour or more, the engine is warmed up and conditions for Throttle Air Flow F/B Value are met.

HINT:

• Since a pending DTC is not stored for this DTC, it takes time to confirm whether the malfunction has been successfully repaired by checking for this DTC. When confirming whether the malfunction has been successfully repaired, compare "Throttle Air Flow F/B Value" recorded in the freeze frame data with "Throttle Air Flow F/B Value" in the Data List after repairs have been made to save time.
• 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.

NOTICE:

• Make sure that the cloth or your fingers do not get caught in the valve.
• Make sure that foreign matter does not enter the throttle valve.
• Do not directly apply non-residue solvent to the throttle body with motor assembly or wash the throttle body with motor assembly. Cleaning solvent may leak into the motor from the shaft and cause problems such as rust or valve movement problems.
• If there is coating material on the edge of the valve, be careful not to remove it.
• Push the throttle valve open gently with your finger and check that the throttle valve moves smoothly.

HINT:

• If the throttle valve does not open smoothly, replace the throttle body with motor assembly.
• The illustrations are for reference. Actual parts may differ.

Throttle Actuator "A" Control Motor Circuit Current Below Threshold (P210018,P210019)

DESCRIPTION The throttle actuator is operated by the ECM and opens and closes the throttle valve using gears. The opening angle of the throttle valve is detected by the throttle position sensor, which ...

Throttle Actuator "A" Control System Actuator Stuck Open (P211172,P211173)

DESCRIPTION The throttle actuator is operated by the ECM, and opens and closes the throttle valve using gears. The opening angle of the throttle valve is detected by the throttle position sensor, whic ...

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