Parts for your 2009 Toyota Land cruiser-Throttle position sensors

2009 Toyota Land Cruiser throttle position sensor: fitted, what it does, and how it’s serviced

Yes, the 2009 Toyota Land Cruiser uses a throttle position sensor (TPS). Toyota’s own technical literature confirms this: the Land Cruiser 200 Series with both the 5.7L 3UR‑FE petrol V8 and the 4.5L 1VD‑FTV diesel V8 runs Electronic Throttle Control (ETCS‑i). In these systems the TPS is built into the electronic throttle body, and the accelerator pedal has its own dual-track position sensor. References include the Toyota Land Cruiser 200 Series Repair Manual (Engine Control – ETCS‑i section) and the Toyota Electrical Wiring Diagram (EWD) for the 2009 model year, which show the throttle position No.1/No.2 sensors integrated with the throttle actuator.

On the 2009 Land Cruiser, the TPS tells the engine control module exactly where the throttle plate sits, so fuelling and spark can be dialled in smoothly. It’s central to crisp throttle response, clean gear changes, stable idle, and proper emissions control. Because Toyota integrates the TPS into the throttle body assembly on these engines, the sensor itself isn’t typically serviced as a separate part, faults usually lead to testing, cleaning, and, if needed, replacement of the complete throttle body.

Owners and fleets will see best results treating the throttle body/TPS as a long-life, “inspect and keep clean” component during routine servicing:

• Symptoms of TPS or throttle body issues: hesitant take-off, hunting idle, poor fuel economy, limp mode, or a check engine light with codes like P0120–P0124 or P2135 (sensor correlation).
• Preventive care: inspect the throttle body for carbon build-up and clean with throttle-safe cleaner. Avoid forcing the throttle plate by hand. Check the harness and connector for oil ingress or corrosion, especially on high‑km touring rigs.
• Testing: scan live data for dual-track throttle angle agreement and smooth sweep, confirm 5V reference and ground integrity. Compare accelerator pedal and throttle angle tracks for correlation.
• Replacement: if the sensor tracks are erratic or out of spec, replace the throttle body assembly with a new gasket. After refit, perform a throttle/idle learn with a capable scan tool, or follow the Toyota idle normalisation drive cycle. Clear codes and verify stable idle and linear throttle response.

Done right, the Land Cruiser’s TPS setup is reliable for the long haul across Aussie and Kiwi conditions, provided it’s kept clean and the wiring remains tidy and dry.

Popular questions about 2009 Toyota Land Cruiser throttle position sensors

Does the 2009 Land Cruiser’s TPS come separately from the throttle body?

On the 200 Series petrol 3UR‑FE and diesel 1VD‑FTV, the TPS is integrated into the electronic throttle body. In normal practice it isn’t supplied as a separate service item. If the sensor tracks fail testing, replacing the complete throttle body is the standard fix, followed by a throttle learn procedure.

Can a dirty throttle body make the TPS read wrong?

Build-up on the throttle plate can cause unstable airflow at small openings, which shows up as hunting idle or touchy throttle. The TPS may be reading correctly, but the airflow doesn’t match expectations. A careful clean often restores smooth response, if correlation codes persist afterward, deeper TPS/throttle body diagnostics are warranted.

What maintenance interval suits the TPS/throttle body on a 2009 Cruiser?

There’s no fixed replacement interval. Many workshops inspect and, if needed, clean the throttle body every 40,000–60,000 km, especially on vehicles that tow, idle for long periods, or see dusty outback use. Electrical checks are added if any drivability complaints or fault codes are present.