Parts for your 2015 Toyota Fortuner-Throttle position sensors

2015 Toyota Fortuner throttle-position-sensors (TPS): what they do and how to look after them

Technical Toyota sources confirm a throttle-position sensor is used on the 2015 Toyota Fortuner. Toyota’s New Car Features (NCF) and Repair Manual coverage for the KD/GD diesel and 2TR-FE petrol engines describe Electronic Throttle Control (ETCS-i) with a motorised throttle body that incorporates dual throttle position sensors for feedback to the engine ECU. The Toyota Electronic Parts Catalogue for 2015 Fortuner models also lists a throttle body assembly with an integrated position sensor, diesel variants use a throttle valve (often called an intake air control valve) with position sensing for EGR control and smooth shutdown. In short, the TPS is relevant and fitted to 2015 Fortuner engines.

On a 2015 Fortuner, the throttle-position sensor’s job is to tell the ECU exactly where the throttle plate sits. On the 2TR-FE petrol, it’s central to fuelling, spark timing and idle control. On the 1KD-FTV and 1GD-FTV diesels, the throttle valve isn’t for power like a petrol, but the ECU still relies on TPS feedback to manage EGR flow, reduce shudder on shutdown and stabilise idle. The system uses redundant (dual-track) sensors inside the electronic throttle body for accuracy and safety, working alongside the accelerator pedal position sensors.

Owners who keep the TPS and throttle body happy tend to enjoy smooth take-offs, consistent fuel economy and fewer fault codes. While Toyota doesn’t specify a routine replacement interval, it’s smart to check the throttle body and its connector during regular servicing—say every 40,000–60,000 km. A careful clean of the throttle bore and plate (no forcing the blade by hand) helps prevent sticky operation, on diesels, keeping EGR and intake deposits in check is especially helpful. If replacement is needed, using a genuine-quality throttle body with a new gasket, inspecting the loom for chafing, and performing an idle/throttle learning procedure with a scan tool is the go. After any work, confirm live data shows two matching throttle position tracks and clear any DTCs such as P0120–P0124 or P2135.

Handy tips:

• Don’t lever the electronic throttle plate open, use the scan tool’s active test if needed.
• Spray cleaner sparingly, avoid soaking the throttle motor or TPS area.
• If drivability is erratic or it drops into limp mode, check the connector for corrosion or water ingress before replacing parts.

These points reflect Toyota Repair Manual sections for ETCS-i and the NCF system descriptions used across Fortuner/Hilux/Prado platforms of the same era.

FAQs

Where is the TPS on a 2015 Fortuner?
It’s built into the electronic throttle body on the intake side of the engine, not a separate bolt-on sensor. Petrol and diesel models both use a motorised throttle unit with integrated position sensors. Note the accelerator pedal also has its own position sensors, which are separate from the throttle body TPS.

Does it need calibration after replacement?
Yes. After fitting a new throttle body, an idle/throttle learning procedure should be performed. Many vehicles will relearn after a warm-up and steady idle, but using a proper scan tool to run the ETCS learning routine is recommended to avoid a high or unstable idle and to ensure both TPS tracks agree.

Can a dirty throttle or EGR cause TPS fault codes?
It can. Heavy carbon can make the throttle plate stick or slow to return, which can trigger correlation or range codes. Wiring issues, poor grounds and a low battery can mimic TPS faults too, so always inspect the connector and harness and verify with live data before replacing parts.