Parts for your 2017 Suzuki Splash-Throttle position sensors

2017 Suzuki Splash Throttle Position Sensor (TPS): purpose, service tips, and when to replace

Based on technical references — Suzuki Splash/Opel Agila (A5) Service Manual, Engine Control System, Maruti Suzuki Ritz K12B Workshop Manual, and OBD-II diagnostics for the Bosch/Delphi engine management used on K10B/K12B — the 2017 Suzuki Splash is fitted with a throttle position sensor. On the petrol models the TPS is integrated into the electronic throttle body (drive-by-wire). Related factory documentation lists TPS-related DTCs (P0120–P0124, P0220–P0229), confirming its role in the Splash’s engine control.

For this model, the TPS tells the engine control module exactly how far the throttle plate is open. That real-time angle helps the ECU fine-tune fuel, ignition timing, and idle control, making the little Suzuki behave cleanly around town and steady on the open road. With the electric throttle, the Splash also runs a dual-track sensor for redundancy — if one track drifts, the ECU can spot the mismatch and flag a fault to keep things safe.

When the TPS gets worn or dirty, drivers can see rough idle, lazy throttle response, flat spots, hunting revs, or the check engine light. Fuel economy can nose-dive, and the car may drop into limp mode. Because the sensor is part of the throttle body on most Splash petrol engines, servicing usually focuses on cleaning and testing before jumping to replacement.

• Maintenance: inspect the intake duct for splits, clean the throttle bore and plate with sensor-safe cleaner, and check the connector for corrosion. Avoid twisting the throttle plate by hand on electronic units.
• Diagnostics: scan for codes (P0120–P0124/P2135 etc.), view live data for throttle angle agreement, and check 5 V reference, signal, and ground integrity.
• Replacement: if the TPS is non-serviceable (integrated), replace the throttle body assembly with a quality unit. After fitting, perform an idle/throttle relearn with a scan tool or follow the manufacturer’s key-on/idle procedure. Clear codes and road test.

As part of routine servicing on a 2017 Splash, a quick look at the throttle data and a gentle clean of the throttle body every 40,000–60,000 km helps keep response crisp and emissions in check. If symptoms persist after cleaning, it’s time to test the sensor tracks and consider replacement.

Popular questions

Does the 2017 Suzuki Splash actually have a TPS?
Yes. Factory engine control diagrams for the Splash/Ritz show an electronic throttle body with an integrated dual-track throttle position sensor. It’s monitored by the ECU and will set standard TPS fault codes if readings go out of range.

What are the tell-tale signs the TPS is failing on a Splash?
Common giveaways are erratic idle, hesitation off the line, a sudden lack of power, surging at steady speed, and the check engine light. A scan tool will often show mismatched or jumpy throttle angle readings, and you may see limp mode behaviour.

Do I need to calibrate or relearn the TPS after replacement?
On electronic throttle bodies, yes — a throttle/idle relearn is recommended. Many scan tools have a guided routine, otherwise, there’s a manufacturer-specific key-on/idle procedure. Skipping this step can leave the idle unstable or the throttle response uneven.