Parts for your 2010 Suzuki Splash-Throttle position sensors

2010 Suzuki Splash throttle position sensor (TPS): purpose, servicing and replacement

Yes, the 2010 Suzuki Splash does use a throttle position sensor, and it’s absolutely relevant to how the engine runs. Technical documentation for the Splash’s K10B (1.0L) and K12B (1.2L) petrol engines describes an electronic throttle body with dual-track throttle position sensing that reports plate angle to the engine control module. The sister-model Opel/Vauxhall Agila B workshop information confirms the same arrangement. For the 1.3 DDiS diesel, service literature notes an electronically actuated intake throttle (shut-off) valve with position feedback. These sources collectively show the Splash is fitted with TPS hardware as part of its drive-by-wire system.

What does the TPS do on a 2010 Splash? It constantly tells the ECU exactly how far the throttle plate is open. The ECU cross-checks this with the accelerator pedal position sensor and airflow readings to manage idle stability, tip-in response, fuel delivery, ignition timing, and emissions. The dual-sensor tracks provide redundancy, if their signals don’t agree, the ECU can drop the car into limp mode to keep things safe.

Typical signs the TPS or throttle body is on the fritz include:

• Hesitation, surging, or a hanging idle
• Intermittent stalling at lights
• Poor fuel economy or flat spots
• Check Engine Light with codes like P0120–P0124, P0220–P0229, or throttle actuator correlation faults

Servicing tips for the Splash: the TPS is integrated into the electronic throttle body on the petrol engines and generally isn’t serviced separately, the usual fix is replacing the complete throttle body if the sensor tracks are faulty. Before replacing anything, rule out basics—clean the throttle bore and plate using sensor-safe throttle cleaner, inspect the connector for corrosion, and check the wiring harness for rub-through near the throttle body. Avoid forcing the throttle plate by hand, use the pedal or a scan tool to command it open.

After cleaning or replacement, perform an idle/throttle relearn. Many shops use a scan tool routine, but a basic method is to warm the engine, cycle ignition ON for ~30 seconds (engine off), then start and let it idle without loads for 10 minutes, followed by a short drive so the ECU can adapt. Clear any stored DTCs and verify live data: TPS should sweep smoothly from about 0–100% with no dropouts.

On the diesel DDiS, similar logic applies: the intake throttle actuator’s position feedback is monitored, faults can set limp mode and EGR-related codes. Replacement is typically the actuator assembly, followed by adaptation with a scan tool.

Referenced technical sources: Suzuki Splash/Ritz Workshop Manual (K10B/K12B), Vauxhall/Opel Agila B Service Manual (shared platform), and manufacturer service bulletins covering electronic throttle control diagnostics for these engines.

Popular questions

1) How do you reset or relearn the throttle on a 2010 Suzuki Splash after cleaning or replacement?
Most technicians either run the throttle/idle learn via a scan tool or use a basic adaptation routine. Warm the engine, switch ignition ON (engine off) for about 30 seconds, switch OFF, then start and let it idle undisturbed for around 10 minutes. Turn on loads one at a time (A/C, lights) to let the ECU trim, then take a short drive. If available, the scan-tool learn is preferred because it confirms completion.

If the idle is still uneven or the Check Engine Light returns, check for pending DTCs and verify there are no intake air leaks or wiring faults to the throttle body.

2) Can you drive a 2010 Splash with a bad TPS?
It’ll often run, but it may go into limp mode with limited throttle response, and it can stall or surge—none of which is ideal in city or motorway traffic. Prolonged driving with incorrect throttle feedback can hurt fuel economy and catalytic converter life. Best bet is to diagnose and sort it promptly.

3) Does the Splash have both a throttle position sensor and an accelerator pedal position sensor?
Yes. The Splash’s drive-by-wire system uses an accelerator pedal position sensor to read driver demand and a throttle position sensor in the throttle body (or intake throttle actuator on the diesel) to confirm actual plate position. The ECU constantly compares both signals, if they don’t align, it flags a fault and can restrict power to keep things safe.