Parts for your 2011 Toyota Crown-Throttle position sensors

2011 Toyota Crown throttle position sensors

Technical sources for the S200-series 2011 Toyota Crown (Toyota service literature and wiring diagrams for ETCS‑i, plus Denso’s electronic throttle control documentation) confirm the car uses throttle position sensors. In these Crowns, the throttle position sensing is built into the electronic throttle body and is duplicated (two sensors) for safety and diagnostic accuracy. Toyota’s diagnostic coverage for this setup includes DTCs such as P0120, P0122, P0123 and P2135, which directly reference the throttle position sensor circuits—clear evidence it’s fitted and monitored by the ECM.

On a 2011 Toyota Crown, the throttle position sensors (TPS) tell the engine computer exactly how far the throttle plate is open. With ETCS‑i (drive‑by‑wire), the ECM uses these readings alongside the accelerator pedal position sensors to decide how much to open the throttle motor. That data also shapes fuel delivery, ignition timing, idle speed control, transmission shift behaviour, cruise control and stability/traction strategies. Because these Crowns often run engines like the 4GR‑FSE or 2GR‑FSE, Toyota uses dual TPS tracks inside the throttle body for redundancy, if the two signals don’t agree, the car will set a fault and can drop into limp mode.

Typical symptoms of a failing TPS include erratic idle, hesitation, surging, reduced power, harsh shifting and the MIL on with codes like P0120–P0124 or P2135. On this model the TPS is integrated with the throttle body, so replacement generally means swapping the complete throttle body assembly rather than a separate bolt‑on sensor. After replacement or a thorough clean, perform an idle/throttle relearn with a scan tool (Techstream is the usual pick) or follow the service‑manual drive cycle so the ECM can recalibrate the throttle angle and idle airflow. Don’t force the throttle plate by hand, and only use throttle‑body‑safe cleaner to avoid damaging the sensor film.

• Inspect the harness and connector under the bonnet for moisture, corrosion or pin tension issues before condemning the throttle body.
• Check the intake tract and PCV hoses for air leaks, unmetered air can mimic a TPS fault.
• When refitting, use a new throttle‑body gasket and torque the bolts to the service‑manual spec.
• Clear codes and confirm live data shows two stable, tracking TPS signals that agree with pedal input.

Does the 2011 Crown have a separate, replaceable TPS?

No. On the S200 Crown the throttle position sensors are built into the electronic throttle body. If the sensors are faulty, the usual fix is replacing the throttle body assembly and then carrying out a throttle/idle relearn.

What fault codes point to a TPS problem on a 2011 Toyota Crown?

Common TPS‑related codes include P0120, P0122, P0123 (TPS circuit range/performance, low, high) and P2135 (correlation between the two TPS tracks). You may also see reduced power or limp‑home behaviour when these appear.

Do hybrid Crowns of this year also use TPS?

Yes. The hybrid variant still uses ETCS‑i with dual TPS in the throttle body. The ECM and hybrid control work together, so a TPS fault can affect drivability and hybrid operation. Diagnosis and replacement steps are much the same, followed by a relearn.