Parts for your 2010 Toyota Aurion-Throttle position sensors

2010 Toyota Aurion throttle position sensor (TPS)

Based on Toyota’s technical literature for the Aurion GSV40R with the 2GR‑FE V6 and its ETCS‑i (Electronic Throttle Control – intelligent), a throttle position sensor is indeed used on the 2010 Toyota Aurion. The TPS is built into the electronic throttle body and provides dual-track throttle valve position feedback to the engine control module. This is supported by Toyota’s GSV40 engine control system repair manual, the Toyota Electrical Wiring Diagram for the GSV40 series showing “Throttle Position Sensor (VTA/VTA2)” circuits within the throttle actuator assembly, and the Toyota parts catalogue listing the TPS as part of the complete throttle body (not a standalone service item). DTCs such as P0120–P0124, P0220–P0223 and P2135 in Toyota diagnostic charts also reference the Aurion’s TPS circuits.

The 2010 Aurion’s throttle position sensor does a lot more than people think. Housed inside the electronic throttle body, it tracks the exact angle of the throttle plate and feeds that to the ECM so it can manage fuel, ignition timing, idle control and even the auto’s shift behaviour. Because the Aurion uses ETCS‑i, there are two TPS tracks (often shown as VTA and VTA2) for redundancy and cross-checks, working alongside the accelerator pedal position sensor. That’s why mismatch faults can kick the car into limp-home if something’s off.

What owners notice when the TPS or its wiring plays up: erratic idle, flat spots, sluggish kickdown, cruise control dropping out, poor fuel economy and a check engine light. Common related codes include P0120–P0124, P0220–P0223, P2135 and sometimes throttle actuator codes. Before blaming the sensor, a good service check should look at battery health and grounds, the throttle body connector for corrosion or oil ingress, and the loom where it bends near the throttle body.

As the TPS is integrated, you don’t replace the sensor on its own—you replace the throttle body assembly and fit a new gasket. After that, use Techstream (or a capable scan tool) to run throttle and idle learn procedures, clear DTCs and confirm the two TPS tracks agree. If the throttle is just grimy, a careful clean with a sensor‑safe cleaner can restore smooth operation—just don’t soak the electronics or force the plate. Avoid cheap no-name throttle bodies, OE or a quality equivalent keeps the calibration tight and helps prevent correlation faults down the track.

For ongoing maintenance, a periodic throttle body clean, ensuring the air filter is in good nick, and checking the harness and connector during services will keep the Aurion happy for many more kilometres.

• Typical symptoms: unstable idle, hesitation, harsh or delayed shifts, limp mode.
• Typical fault codes: P0120–P0124, P0220–P0223, P2135.
• Service tip: replace throttle body as an assembly, perform throttle/idle learn with a scan tool.

Does the 2010 Aurion have a separate TPS I can swap out?

No. On the 2GR‑FE Aurion it’s built into the electronic throttle body. If the TPS fails or the two tracks don’t correlate, the fix is a complete throttle body replacement with a new gasket, followed by throttle and idle learn using Techstream or an equivalent scan tool.

What are the tell‑tale signs of a TPS issue on an Aurion?

Drivers often report rough or high idle, hesitation off the line, cruise control dropping out, and a check engine light. Scan tools commonly show P0120–P0124, P0220–P0223 or P2135. Always check the connector and wiring near the throttle body before condemning the unit.

Will cleaning the throttle body fix TPS faults?

Cleaning can help if the throttle plate is sticking from carbon build‑up, improving response and idle quality. It won’t fix an internal sensor fault or a correlation code between the two TPS tracks. If codes return after a clean and wiring check, plan for a throttle body replacement and proper relearn.