Parts for your 2010 Toyota Land cruiser-Throttle position sensors

2010 Toyota Land Cruiser throttle position sensors (TPS): what they do and how to look after them

Yes, the 2010 Toyota Land Cruiser is fitted with throttle position sensors. All 200 Series variants of that year—whether the petrol 3UR‑FE V8 or the diesel 1VD‑FTV—use Toyota’s electronic throttle control system (ETCS‑i). The throttle body contains two redundant TPS tracks to report actual throttle plate angle, and the accelerator pedal carries its own position sensors. This design and operation are documented in Toyota’s Land Cruiser 200 Series Repair Manual (Engine Control/ETCS‑i sections) and the New Car Features (NCF) manual for the 200 Series, as well as Denso’s ETCS‑i technical descriptions.

On this Land Cruiser, the TPS tells the engine control module exactly where the throttle plate sits at any moment. That data is cross‑checked against the accelerator pedal position to deliver smooth driveability, control fuel and spark, manage idle speed, support cruise control, coordinate transmission shifting and, when required, limit torque for stability and traction systems. Dual sensors inside the throttle body provide redundancy—if the two signals don’t agree, the ECM can drop into limp mode for safety.

If the TPS is acting up, drivers might notice sluggish response, hunting idle, stalling when coming to a stop, poor fuel economy, or the MIL/Check Engine light with fault codes like P0120–P0124 or P2135. Because the sensors are integrated into the throttle body on ETCS‑i models, diagnosis matters before parts are thrown at it.

• Maintenance tip: keep the intake tract clean and inspect the throttle body during scheduled servicing. Light cleaning of the bore and plate can help, but don’t force the throttle blade or flood the motor housing with solvent. Use appropriate throttle‑body cleaner and a new gasket if it’s removed.
• Replacement advice: on the 2010 Land Cruiser the TPS isn’t serviced separately—replace the throttle body assembly if the sensor fails per Toyota’s guidance. After refit, perform an idle/throttle learn with a scan tool (Techstream) or allow the ECM to relearn at idle following battery reset. Clear codes and confirm live data tracks correctly.
• Good practice: verify wiring integrity and connector condition, check for intake leaks, and confirm accelerator pedal sensor values match expected ranges before condemning the throttle body.

Technical references: Toyota Land Cruiser 200 Series Repair Manual (Engine Control/ETCS‑i, Throttle Body with Motor), Toyota New Car Features (200 Series ETCS‑i overview), and Denso ETCS‑i system documentation.

Popular questions

Does the 2010 Land Cruiser have a throttle position sensor?
It does. The 200 Series uses ETCS‑i with two TPS tracks built into the throttle body, plus accelerator pedal position sensors. Toyota’s Repair Manual and New Car Features docs spell out the dual‑sensor arrangement and correlation checks.

What are the signs the TPS is failing on a 2010 Land Cruiser?
Common clues include an illuminated Check Engine light, limp‑home behaviour, slow or surging throttle response, rough or unstable idle, and codes such as P0120–P0124 or P2135. Always confirm with scan‑tool data and wiring checks.

Can the TPS be replaced on its own, or is it part of the throttle body?
On this model it’s integrated into the throttle body and not serviced separately. If testing confirms a bad TPS, the recommended repair is to replace the throttle body assembly and carry out the idle/throttle relearn.