Parts for your 2021 Toyota Camry-Throttle position sensors

2021 Toyota Camry Throttle Position Sensors (TPS)

Yes, the 2021 Toyota Camry uses throttle position sensors. Toyota’s service literature for the 2018–2022 Camry platform (XV70) details ETCS-i (Electronic Throttle Control System – intelligent), which incorporates dual throttle position sensors built into the throttle body with an electric actuator, along with dual accelerator pedal position sensors. The repair manual and wiring diagrams list the TPS signals (often referred to as VTA1/VTA2) and relevant DTCs such as P0120–P0124 and P2135, confirming the part is present and monitored by the ECM.

On this Camry, the throttle position sensors continuously report the exact angle of the throttle plate so the engine control module can balance air, fuel and ignition timing for smooth performance, reliable starts and proper emissions. Working with the pedal sensors, traction and stability systems, cruise control and the transmission shift strategy, the TPS helps the car feel crisp and consistent whether it’s overtaking on the motorway or crawling in city traffic.

There’s no routine replacement interval for the TPS on a 2021 Camry because the sensors are sealed within the throttle body assembly. If a TPS fault is confirmed, the usual fix is to replace the complete throttle body. That said, sensible servicing helps: keeping the throttle bore clean prevents sticky airflow that can mimic sensor issues. Use a suitable throttle-body-safe cleaner, avoid forcing the plate open by hand, and don’t flood the motor housing. After battery disconnection or throttle body service, an idle relearn may be needed, a scan tool can speed this along.

Watch for signs like erratic idle, hesitation, sudden limp-home behaviour, poor fuel economy or an illuminated check engine light. If those appear, scan for codes before replacing parts. Many TPS-related faults are actually wiring or connector problems, so check harness condition and pins for corrosion or damage.

• Best practice: inspect throttle body cleanliness at major services (around 60,000–100,000 km) and only clean if deposits are evident.
• If replacement is required: fit a quality gasket, torque to spec, clear codes and perform throttle/idle initialisation per Toyota procedures.
• DIYers should avoid opening or adjusting the sealed sensor module—there’s no manual calibration on ETCS-i.

Technical sources: Toyota Camry (2018–2022) Repair Manual – Engine/Hybrid System: SFI, Electronic Throttle Control System (ETCS-i), Toyota Electrical Wiring Diagram – Engine Control, DTC listings for P0120–P0124/P2135.

Popular questions

Does the 2021 Camry have a replaceable throttle position sensor on its own?
It has throttle position sensors, but they’re integrated into the throttle body with the actuator. Toyota doesn’t service the TPS separately, if the sensor is faulty, the recommended repair is to replace the complete throttle body assembly and carry out an idle/throttle relearn.

What symptoms point to a TPS issue on a 2021 Camry?
Common clues include a hunting or high idle, flat spots on acceleration, unexpected limp mode, cruise control dropping out, or a check engine light with codes like P0120–P0124 or P2135. Because harness or throttle-bore issues can mimic sensor faults, a proper scan and basic inspections are smart before committing to parts.

Should the throttle body be cleaned during servicing?
If there’s visible carbon build-up or the idle feels unstable, a careful clean can help. Use a throttle-safe cleaner, don’t pry the plate, and avoid soaking the motor housing. After cleaning, allow the ECM to relearn idle or use a scan tool procedure where available.