Parts for your 2022 Suzuki Splash-Throttle position sensors

2022 Suzuki Splash throttle position sensor (TPS)

Based on technical references, a throttle position sensor is fitted and very much relevant on the 2022 Suzuki Splash. The Suzuki Splash/Ritz service manual for K10B/K12B engines documents DTCs P0120–P0124 and P2135 for throttle position faults and describes the TPS as integral to the electronic throttle body. The Suzuki Electronic Parts Catalogue lists the throttle body with a built-in throttle position sensor. Engine management used on K‑series engines (Bosch ME17 family in many markets) also requires dual-track throttle position feedback. On that basis, the 2022 Suzuki Splash uses a TPS.

On this model, the TPS is part of the electronic throttle body and tells the engine control module exactly how far the throttle plate is open. That live signal lets the ECU fine‑tune fuel, spark, idle speed, cruise control, and even transmission shift timing where applicable. It’s a dual-sensor setup for redundancy, so the ECU can compare both tracks for safety and drop to limp mode if they disagree.

There’s no scheduled replacement for the TPS, it’s a “as‑needed” item. Because it’s integrated into the throttle body, replacement usually means swapping the whole throttle assembly. Typical warning signs include:

• Erratic idle, surging, hesitation, or flat spots on tip-in
• Reduced power/limp mode and a lit check engine lamp
• Fault codes such as P0120–P0124 or P2135

Good servicing habits help the TPS live a long life:

• Keep the air filter fresh and the throttle bore clean using sensor‑safe throttle cleaner (avoid drowning the shaft area)
• Inspect the connector for corrosion and make sure the engine grounds and battery voltage are healthy
• Fix vacuum leaks—unmetered air can mimic TPS drama

If replacement is needed, confirm the fault with scan data first (watch TPS percentage against accelerator input). Check wiring before condemning the unit. When fitting a new throttle body, use a quality part, install a new gasket if required, and perform a throttle/idle relearn with a capable scan tool so the ECU knows the new sensor’s closed/open positions. Clear codes, then road test and verify smooth throttle response. In normal conditions, the original unit can last well beyond 150,000 km, but age, contamination, or connector issues can bring problems earlier.

Where is the TPS on a 2022 Suzuki Splash?

It’s built into the electronic throttle body on the intake manifold. There isn’t a separate bolt‑on sensor, the TPS and throttle motor live in the same housing. Access typically involves removing the intake ducting for inspection or replacement.

Does a TPS fault always mean the throttle body needs replacing?

Not always. Many “TPS” codes are caused by a dodgy connector, broken wiring near the plug, low system voltage, or a fouled throttle plate. Only after checking those basics and confirming inconsistent sensor tracks on live data should the throttle body be replaced.

Is a relearn needed after fitting a new throttle body?

Yes. The ECU needs a throttle/idle adaptation so it knows the exact closed and open angles of the new unit. Without a relearn, idle quality and throttle response may be ordinary, and fault codes can return.