Parts for your 2014 Suzuki Splash-Throttle position sensors

2014 Suzuki Splash throttle position sensor (TPS): what it does and how to look after it

Technical sources confirm the 2014 Suzuki Splash does use a throttle position sensor. Suzuki’s service information for the K‑series petrol engines (K10B/K12B) and the Opel Agila B/Splash workshop manuals describe an electronic throttle body that houses a throttle actuator and dual throttle position sensors (often called TPS1 and TPS2 for redundancy). Common Suzuki OBD‑II diagnostic lists also include TPS‑related fault codes (P0120–P0124, P0220–P0229), which are used when diagnosing the Splash. So a TPS is very much relevant on this model.

On a 2014 Splash, the TPS tells the engine control module exactly how far the throttle plate is open. That live signal lets the computer match fuel, ignition timing and idle control to the driver’s right foot. With the drive‑by‑wire setup, the ECU also cross‑checks two TPS signals to keep things safe and smooth. If the readings don’t agree, it can drop into limp mode to protect the engine.

There’s no fixed replacement interval for the TPS, but it’s smart to give it some attention during routine servicing. Under the bonnet, a quick look at the throttle body connector and harness goes a long way—make sure the plug is seated, pins are clean, and there’s no chafing on the loom. If the car’s idling rough, surging, hesitating off the mark or the fuel use has crept up, scan it for codes and check the “TP%” live data. The reading should sweep smoothly from closed to open with no dead spots.

On most Splash variants, the TPS is integrated into the electronic throttle body, so replacement generally means swapping the whole throttle body assembly. Use a quality part, fit a new gasket if required, and clear the codes. Many Splash models need a throttle/idle relearn after battery disconnection or throttle body replacement—either with a scan tool function or a basic warm‑up and idle procedure. A clean throttle body can help too, use the right cleaner and avoid flooding the electronics. As a rule of thumb, add these checks to major services or every 20,000–30,000 kilometres to keep things sweet.

• Common signs of TPS trouble: check engine light, uneven idle, flat spots, stalling when coming to a stop, poor economy, or the car going into limp mode.
• Handy tip: comparing accelerator pedal position (APP) and TPS readings on a scan tool helps pinpoint whether the issue is at the pedal, wiring or throttle body.

Popular questions

Where is the TPS on a 2014 Suzuki Splash?
The TPS is built into the electronic throttle body mounted on the intake side of the engine. It’s not the same as the accelerator pedal sensor, that one (APP) is on the pedal itself. The ECU compares both for safety and accuracy.

Does the TPS need calibration after replacement?
Yes—after replacing the throttle body/TPS, a throttle/idle relearn is recommended. Many scan tools have a throttle adaptation function, but a basic relearn can also occur after a warm‑up and a period of stable idling with accessories off. Always clear fault codes and verify a smooth TP% sweep.

Can the TPS be replaced on its own?
On most 2014 Splash petrol models, the TPS is integral to the throttle body and isn’t serviced separately. If the TPS has failed or the signals don’t track properly, the usual fix is to replace the complete throttle body assembly.