Parts for your 2011 Nissan Tiida-Throttle position sensors

2011 Nissan Tiida throttle-position-sensor: what it does and how to look after it

Relevant technical documentation confirms the 2011 Nissan Tiida (C11, HR16DE/MR18DE) uses an electronic throttle body with built‑in throttle-position-sensors (TPS). The Nissan Factory Service Manual (EC—Engine Control) describes the Electric Throttle Control Actuator as comprising a throttle control motor and throttle-position-sensors, with diagnostics covering DTCs P0121–P0123 for TPS performance and circuit issues. Nissan technical training on the Electronic Throttle Control System also notes dual-track TPS integrated in the throttle body for redundancy. OEM parts catalogues list the throttle body assembly as including the TPS, typically not supplied as a separate service item.

• Nissan Tiida/Versa C11 Factory Service Manual (EC—Engine Control): Electric Throttle Control Actuator, DTC P0121–P0123 (TPS)
• Nissan Technical Training: Electronic Throttle Control System (ETC) — dual internal TPS within throttle body
• OEM parts catalogue for 2011 Tiida: Throttle body assembly includes TPS, sensor generally non‑serviceable separately

On a 2011 Nissan Tiida, the throttle-position-sensors are the throttle body’s eyes, telling the engine computer exactly how far the throttle plate is open. That info gets matched with the accelerator pedal position to deliver smooth take‑off, tidy idle, and decent fuel economy. Because it’s drive‑by‑wire, the TPS is built into the electronic throttle body and works as a dual sensor for safety and accuracy.

In normal servicing, there’s no set replacement interval for the TPS, it’s a “when needed” repair. If the owner notices a check engine light, jumpy idle, flat spots, limp mode, or thirsty fuel use, it’s worth scanning for TPS‑related codes and checking live data for the two TPS tracks (they should agree). A visual once‑over of the harness and connector under the bonnet is a quick win—look for loose pins, green corrosion, or rubbed‑through wiring.

Good maintenance starts with a careful throttle body clean if deposits build up. Use a proper throttle cleaner, keep the throttle plate propped gently, and never force it by hand—those plastic gears don’t like a wrestle. After cleaning or battery disconnect, the Tiida usually needs the throttle/idle relearn routines (Accelerator Pedal Released Position, Throttle Valve Closed Position, and Idle Air Volume Learn). A capable scan tool makes that a two‑minute job, the manual pedal‑dance can work but can be fussy about timing.

If the TPS has failed, the fix is typically replacing the whole throttle body. Use a new gasket, torque the fasteners evenly, and perform the relearns straight away. A quick road test to confirm stable idle, crisp tip‑in, and no fault codes will have the Tiida back to its usual easygoing nature.

• Does the 2011 Nissan Tiida have a separate throttle-position-sensor or is it integrated?

It’s integrated. The TPS lives inside the electronic throttle body as a dual‑track sensor. The accelerator pedal has its own position sensor, so don’t mix the two up when diagnosing.

• What are common symptoms of a failing TPS on a 2011 Tiida?

Check engine light, erratic or high idle, sluggish throttle response, poor fuel economy, and limp‑home behaviour. Scan for codes like P0121–P0123 and compare the two TPS tracks for agreement.

• After cleaning or replacing the throttle body, does it need a relearn?

Yes. Perform the throttle/idle relearn procedures or use a scan tool to run Accelerator Pedal Released Position Learn, Throttle Valve Closed Position Learn, and Idle Air Volume Learn. Skipping this can leave the idle off‑song.