Parts for your 2022 Subaru Xv-Throttle position sensors

2022 Subaru XV throttle-position-sensor: what it does, where it lives, and how it’s serviced

Yes, the 2022 Subaru XV uses a throttle position sensor (TPS). Technical sources including the Subaru Service Manual for MY2022 XV/Crosstrek (FB20 engine, Electronic Throttle Control section), Subaru Global Technical Information System wiring diagrams, and the Subaru electronic parts catalogue confirm the XV’s throttle body contains dual TPS tracks and an electric throttle actuator. It’s a drive‑by‑wire setup: the accelerator pedal position sensor tells the ECU what the driver wants, while the throttle body’s integrated TPS reports the actual throttle plate angle for precise control and redundancy. On this model, the TPS is part of the throttle body assembly and typically isn’t serviced as a stand‑alone sensor.

On the XV, the TPS’s job is to feed the ECU accurate, real‑time throttle angle data so the engine gets the right air and fuel. That keeps idle smooth, throttle response clean, emissions in check, and cruise control and stability systems happy. If the ECU sees a mismatch between the pedal request and the TPS signals, it can throw a fault code and drop the vehicle into reduced‑power mode to protect the engine and driveline.

There’s no routine replacement interval for the TPS on a 2022 XV. As part of regular servicing, a workshop will usually check for fault codes and look at live data (both TPS tracks should move smoothly and agree with each other). If drivability issues pop up, a careful throttle body clean can help—just don’t force the plate open by hand. Use throttle‑body‑safe cleaner with the ignition off, and let the electronics do the moving. If the sensor tracks are out of spec or there’s internal throttle body wear, the fix is generally to replace the complete throttle body assembly and its gasket/O‑ring.

• Common symptoms of TPS/throttle body trouble on an XV: rough or high idle, hesitation, hunting revs, poor fuel economy, limp mode, and a lit check‑engine lamp. Relevant DTCs often include P0121–P0123, P0221–P0223, P2135, and related throttle actuator codes.
• After cleaning or replacement, a throttle learning/initialisation is recommended. Shops use Subaru Select Monitor to perform “throttle valve opening learning.” If tooling isn’t available, the ECU will usually relearn after a warm idle and a short mixed drive with light to moderate throttle inputs.

Good practice for Kiwi and Aussie conditions: keep air filters fresh, avoid dusty intake leaks, and service on schedule—small things that help the TPS and throttle body live a long, drama‑free life.

Popular questions

Does the 2022 Subaru XV have a separate, replaceable TPS?
The XV’s TPS is integrated into the electronic throttle body and isn’t sold by Subaru as a separate part. If the TPS signal is faulty and cleaning or wiring checks don’t sort it, the usual repair is a complete throttle body replacement with a new gasket/O‑ring.

How is the throttle/TPS relearned after cleaning or battery disconnect?
Workshops use Subaru Select Monitor to run the throttle learning procedure. Without a scan tool, letting the engine reach operating temperature, idling for several minutes, then taking a short drive with varied, gentle throttle typically allows the ECU to relearn. Avoid heavy loads until idle and response stabilise.

What fault codes point to TPS issues on a 2022 XV?
Codes commonly linked to TPS/throttle body faults include P0121, P0122, P0123 (TPS circuit range/performance), P0221, P0222, P0223 (secondary TPS track), P2135 (correlation), and throttle actuator codes like P2101. Diagnosis should confirm power, ground, and connector integrity before replacing parts.