Parts for your 2023 Suzuki Splash-Throttle position sensors

2023 Suzuki Splash throttle-position-sensors

Based on Suzuki factory service information for the Splash/Ritz (K10B/K12B), plus independent technical data sources such as Autodata and Haynes Pro, the Splash uses an electronic throttle body with built‑in throttle‑position sensors (often dual, for redundancy). These sources also list standard DTCs for the throttle position circuit (e.g., P0120–P0124), which confirms the system relies on throttle‑position feedback. So yes, throttle‑position-sensors are relevant and used on any 2023‑registered Suzuki Splash.

On a 2023 Suzuki Splash, the throttle-position-sensors tell the engine control unit exactly where the throttle plate sits, so fuelling, ignition timing and idle control stay spot on. In modern drive‑by‑wire setups like the Splash, the throttle body carries two TP sensors that track each other, the accelerator pedal also has its own dual position sensors. The ECU constantly cross‑checks these signals for safety and smooth response. If those readings don’t stack up, it’ll light the MIL, log a code and often drop into limp mode to protect the engine.

What drivers usually notice when a throttle sensor or its wiring is unhappy: lazy throttle response, stalling at junctions, a hunting idle, erratic revs, cruise control cutting out or a fuel economy drop. The dash might show a check‑engine light with a TP‑related code. Because the Splash’s TP sensors are integrated into the throttle body, they’re not typically serviced separately. If a sensor fails internal tests, replacement is normally the complete throttle body assembly, followed by a throttle/idle learn procedure using a scan tool.

As part of regular servicing, a technician will usually:

• Scan live data to confirm both TP tracks agree and sweep smoothly 0–100% with no spikes.
• Inspect the throttle body connector and harness for corrosion, oil wicking or chafing near the intake.
• Clean the throttle bore and plate using sensor‑safe cleaner (don’t drown the electronics, and never force the plate by hand).
• Check battery and charging health, low voltage can cause TP correlation faults.
• Perform a throttle relearn after cleaning or any battery disconnect.

If replacement’s on the cards, new gasket/O‑ring is a must, and the MAP/MAF readings should be checked afterwards to confirm the ECU’s happy. Done right, the Splash will idle smoothly, pick up crisply and keep emissions and economy in good nick across the kilometres.

Does the 2023 Suzuki Splash have a separate throttle-position-sensor?

On petrol Splash models, the throttle-position-sensors are built into the electronic throttle body as a dual‑track unit, so they’re not usually sold or serviced as a separate, bolt‑on sensor. The accelerator pedal also carries its own dual position sensors that the ECU cross‑checks with the throttle body.

What are common signs the Splash’s TP sensors are playing up?

Expect a check‑engine light, limp mode, rough or hunting idle, flat spots on acceleration, stalling when coming to a stop, cruise control dropping out, or higher fuel use. A scan will often show codes like P0120–P0124 or a mismatch between the two TP tracks in live data.

Do the TP sensors need calibration after work is done?

After cleaning the throttle body, disconnecting the battery, or replacing the throttle body, a throttle/idle relearn should be performed. A scan tool procedure is the tidy way to do it, some ECUs will relearn with key‑on cycles and a stable idle, but using a proper tool avoids headaches and saves time.