Parts for your 2019 Nissan X-trail-Throttle position sensors

2019 Nissan X‑Trail throttle position sensor (TPS)

Based on the Nissan X‑TRAIL T32 factory service information (EC/Engine Control section) and Nissan’s electronic throttle control architecture used on the 2.0‑litre and 2.5‑litre petrol engines, the 2019 X‑Trail is fitted with throttle position sensors. They’re built into the electronic throttle body (dual‑track sensors for redundancy) and work alongside the accelerator pedal position sensor. So yes—TPS is relevant and used on this model.

The throttle position sensor is the throttle body’s storyteller. It constantly reports the butterfly plate angle to the engine control unit (ECU), helping the car manage airflow, fuel delivery, ignition timing and emissions. On the 2019 X‑Trail’s drive‑by‑wire setup, the ECU compares the accelerator pedal position with TPS feedback, then commands the throttle actuator to open the plate just right. That’s why throttle response feels smooth and why idle quality, cruise control and traction systems behave properly.

On this model, the TPS is integrated into the throttle body and isn’t usually sold as a stand‑alone sensor. If the TPS fails electrically or drifts out of range, the common fix is replacing the complete throttle body assembly. After replacement—or after the battery has been off for a while—the ECU typically needs a throttle/idle relearn. Nissan specifies accelerator pedal released position learning, throttle valve closed position learning and idle air volume learning, ideally done with a capable scan tool (or dealer CONSULT) to avoid rough idle or high idle.

• Typical symptoms: erratic idle, hesitation, limp‑home mode, cruise not engaging, higher fuel use, and fault codes like P0120–P0124 or P2135.
• Service tips: keep the intake tract sealed and the air filter fresh, don’t force the throttle plate by hand, if cleaning is needed, use a throttle‑safe cleaner lightly and let it dry fully before start‑up.
• Replacement notes: use a new gasket, check connectors for corrosion, clear fault codes, and perform the relearn procedures so the ECU trusts the new sensor tracks.

Owners who drive lots of urban kilometres may notice more throttle body grime over time, gentle preventive cleaning during scheduled servicing can help. If drivability issues persist after cleaning, testing with a scan tool (tracking both TPS channels and the pedal sensor) will quickly reveal if the throttle body assembly is due for replacement.

Does a 2019 Nissan X‑Trail have a TPS?
Yes. The 2019 X‑Trail uses an electronic throttle body with built‑in dual throttle position sensors, plus an accelerator pedal position sensor. The TPS isn’t normally replaceable on its own, the throttle body is replaced as a unit.

What are common signs the TPS is playing up on a 2019 X‑Trail?
Drivers may see the check engine light, experience rough or high idle, flat spots on take‑off, cruise control dropping out, or limp mode. Scan tools often reveal codes like P0120–P0124 or P2135, and live data will show mismatched throttle angle readings.

Does the TPS need calibration after work on the throttle body?
After throttle body replacement or battery disconnection, the ECU may need throttle/idle relearn. A suitable scan tool makes quick work of the accelerator released position, closed throttle position and idle air volume learning so idle and response return to normal.