Parts for your 2023 Suzuki Splash-Camshaft sensor

2023 Suzuki Splash camshaft sensor — what owners should know

From a technical standpoint, the Suzuki Splash platform uses a camshaft position sensor. Factory Suzuki service manuals for the K12B and K10B petrol engines, along with Autodata and Bosch ESI[tronic] engine-management diagrams, identify a dedicated camshaft position (CMP) sensor for timing, VVT control and sequential injection. The D13A (Fiat Multijet) diesel fitted in some markets also relies on a CMP sensor per Suzuki/Fiat workshop literature. While Splash production ended internationally around 2014 (so there isn’t a true 2023 model year), vehicles can be first registered or complianced later in Australia and New Zealand. If you’re caring for a Splash that shows 2023 on the rego, its engine still uses a camshaft sensor.

On the Splash, the camshaft sensor’s job is to tell the ECU exactly where the cam is in relation to the crank. That means clean cold starts, smooth idle, spot-on fuel sequencing, and proper variable valve timing on the K12B. Lose that signal and the ECU goes to limp strategies, often lighting the MIL and logging codes like P0340/P0341. You might notice hard starting, misfires, doughy throttle response, or higher fuel use.

There’s no set replacement interval for the CMP, it’s a “replace on fault” item. As part of routine servicing, it’s smart to pop the bonnet and give the sensor area a quick look: check the connector for brittle clips, green corrosion, or oil wicking through the loom. Lightly clean the connector, confirm the wiring isn’t rubbing on brackets, and make sure any rocker cover weeps are sorted so oil doesn’t soak the sensor. If removal’s needed, use a new O-ring, keep the mounting face clean, and torque the single retaining bolt correctly — over-tightening can crack the housing.

If the Splash throws correlation codes, don’t just blame the sensor. On higher-kilometre K12B engines, a stretched timing chain or a worn tensioner can set cam/crank sync faults even with a healthy CMP. A proper diagnosis with a scan tool and live data is the go — check RPM sync, VVT targets vs actual, and waveform integrity before reaching for parts.

• Common symptoms: long crank, rough idle, random stalling, poor economy, MIL on with P0340/P0341.
• Best practice: verify power, ground, and signal, inspect the loom, and only then replace the sensor with a quality OEM-equivalent unit.

Fitment location is straightforward: on petrol models it’s mounted at the cylinder head near the cam gear end (front of the engine bay), easy to reach with basic tools. Keep it clean, keep it dry, and it’ll quietly do its job for years.

Popular questions

Does a 2023 Suzuki Splash have a camshaft sensor?
Yes. Although the Splash wasn’t produced as a 2023 model, engines used in the Splash range (K12B, K10B, and D13A) all employ a camshaft position sensor according to Suzuki factory service information, Autodata, and Bosch ESI[tronic]. If your Splash is registered in 2023, the sensor is still relevant and serviceable.

Where is the camshaft sensor on a Splash?
It’s on the cylinder head at the timing end — typically under the front edge of the rocker cover area, with a single small bolt and a two- or three-pin plug. Access is usually under the bonnet without major disassembly.

What should be checked before replacing the camshaft sensor?
Confirm good power and ground at the connector, inspect the wiring for chafing or oil intrusion, and scan for timing correlation issues that could point to chain wear. Replacing a good sensor won’t fix a stretched chain or poor connections.