Parts for your 2013 Toyota Camry-Throttle position sensors

2013 Toyota Camry throttle-position-sensor (TPS): what it does and how it’s serviced

Yes, a throttle-position-sensor is used on the 2013 Toyota Camry. Toyota’s factory literature—New Car Features (NCF) for the 2AR-FE/2GR-FE, the Repair Manual (e.g., RM‑series for 2012–2014 Camry), and the Toyota EWD wiring diagrams—shows the Camry running ETCS‑i (electronic throttle control). In this setup the TPS is built into the throttle body as a dual, redundant sensor (often labelled VTA1/VTA2) and isn’t a separate bolt‑on part.

On the 2013 Camry, the TPS reports the exact angle of the throttle plate to the engine control module so it can manage air, fuel and ignition neatly. With ETCS‑i, the pedal is just a request, the ECU cross‑checks the accelerator pedal position sensors with the two internal throttle-position-sensor tracks for safety and smooth response. If the signals don’t agree, it’ll throw a code and may limit power to protect the engine and driveline. Typical fault codes tied to this circuit include P0121, P0122, P0123, P0222, P0223 and P2135—codes regularly listed in Toyota service information.

Because the TPS is integrated, replacement typically means swapping the complete throttle body assembly. That’s why good servicing habits matter. Keeping the throttle bore and blade clean helps maintain a steady idle and crisp throttle feel. When cleaning, it’s best to use a proper throttle-body cleaner and avoid soaking the electronics. Under the bonnet, check the connector for green corrosion, broken locks or rubbed wiring—common culprits in our humid Aussie and Kiwi climates.

After any throttle body removal or battery disconnect, the ECU may need to relearn its idle and throttle settings. Toyota’s Techstream can run the procedure, but normal driving will usually complete an automatic learn: let the engine idle with all loads off for a few minutes, then drive a few kilometres with varied throttle, and finish with some stop‑start idling. If the MIL stays on or the idle hunts, further diagnosis is wise.

Symptoms that hint at TPS/throttle body issues include a rough or high idle, throttle lag, sudden limp mode, poor fuel economy and the MIL lighting up. Owners often find that a careful clean, a fresh gasket on refit, and a proper relearn keep the Camry happy for many kilometres. If the sensor tracks are faulty, fitting a quality replacement throttle body and clearing the codes is the reliable fix.

• Service tip: don’t force the throttle plate by hand, let the ECU move it.
• Use scan data to compare Throttle Position Sensor No.1/No.2—mismatch points to a fault.

FAQs

Does a 2013 Toyota Camry have a separate throttle-position-sensor I can replace?

No. On this model, the TPS is integrated into the electronic throttle body as a dual sensor. If the TPS fails, the usual repair is to replace the throttle body assembly, then carry out an idle/throttle relearn and clear any stored fault codes.

What symptoms and fault codes point to a TPS issue on a 2013 Camry?

Common signs include erratic or high idle, throttle hesitation, poor fuel economy, limp mode and the MIL on. Codes often seen are P0121, P0122, P0123, P0222, P0223 and P2135. These indicate range, performance or correlation problems between the two internal TPS circuits.

Is a relearn needed after throttle body work on a 2013 Camry?

Yes. After cleaning, replacement or a long battery disconnect, the ECU may need to relearn the throttle/idle strategy. With a scan tool (Techstream) the process is straightforward, otherwise, allow the engine to idle for several minutes and then drive a few kilometres with gentle, varied throttle to complete the learn.