Parts for your 2011 Toyota Hilux-Throttle position sensors

2011 Toyota Hilux throttle position sensor (TPS)

Based on technical references including the Toyota Repair Manual for the N70-series Hilux (Engine Control System section), Toyota Electronic Parts Catalogue for AU/NZ market models, and common service data sets such as Autodata, the 2011 Toyota Hilux is fitted with a throttle position sensor. On petrol variants (1GR‑FE 4.0 V6 and 2TR‑FE 2.7), the TPS is integrated into the electronic throttle body. On the 1KD‑FTV 3.0 D‑4D diesel, a TPS is built into the throttle control motor/intake air control valve assembly, where it reports the shutter plate position used for EGR management and smooth engine shut‑down. The Toyota Electrical Wiring Diagram for these models also shows dedicated TPS signal circuits to the ECM.

The throttle position sensor on a 2011 Hilux tells the engine control module exactly where the throttle plate sits. In petrol models it’s core to drive‑by‑wire control: the ECU compares accelerator pedal input with TPS feedback and commands the throttle motor to deliver crisp response, stable idle, and proper fuel/air mix. On the diesel 1KD‑FTV, the TPS tracks the intake throttle shutter that creates the pressure differential needed for EGR flow and helps the engine shut down without shudder, it also assists with emission control and idle stability. Either way, accurate, noise‑free TPS feedback is vital for smooth drivability and keeping the check‑engine light at bay.

There’s no scheduled TPS replacement interval, but sensible servicing can keep it happy. During routine services (every 40,000–60,000 km is a good window to check), inspect the throttle body or throttle control motor for oil mist and carbon build‑up. On petrol engines, clean the throttle bore with throttle‑safe cleaner without flooding the shaft, and never force the blade open by hand, let the ECU drive it. On diesels, avoid spraying cleaner directly into the throttle control motor—remove the assembly if heavy deposits are present and replace the gasket on refit. Always check the connector pins for corrosion and harness strain.

If symptoms show—hesitation, erratic idle, stalling on coast‑down, cruise control drop‑outs, or codes like P0120–P0124/P2135—use a scan tool to watch the TPS channels. The signal should sweep smoothly with no dead spots. Because Toyota often integrates the sensor into the throttle body (petrol) or throttle control motor (diesel), the usual fix for a worn or noisy TPS is replacing that assembly rather than the sensor alone. After any replacement or battery disconnection, perform the ETCS/throttle initialisation or idle learn procedure with a capable scan tool, following the Toyota workshop steps. Correct torque on mounting bolts and a new gasket help prevent air leaks that can mimic TPS faults.

• Key tips: don’t pry the blade, keep solvents off seals, verify smooth TPS data on a scan, and carry out throttle learning after work.

Q: Does a 2011 Hilux diesel have a throttle position sensor?

A: Yes. The 1KD‑FTV D‑4D uses a TPS built into the throttle control motor (intake air control valve). It doesn’t meter engine power like a petrol throttle, instead, it positions a shutter for EGR flow and smoother shut‑down. The ECU still needs precise position feedback, so TPS health is important for emissions, idle quality, and preventing limp mode.

Q: What are common signs the TPS is failing on a 2011 Hilux?

A: Tell‑tales include hunting idle, flat spots on take‑off, sudden loss of power, cruise control drop‑outs, and the MIL on with DTCs such as P0120–P0124 or P2135. A live‑data check should show a clean, linear sweep as the throttle opens and closes, any jumps or drop‑outs suggest the sensor or its wiring is on the way out.

Q: Can the TPS be replaced separately, or is it part of an assembly?

A: On most 2011 Hilux variants the TPS is integrated. Petrol models generally require replacement of the throttle body assembly, diesels typically need the throttle control motor assembly. Some aftermarket options claim separate sensors, but reliability and calibration can be hit‑and‑miss. After replacement, a throttle/idle learn with a proper scan tool is recommended.