Parts for your 2021 Suzuki Splash-Camshaft sensor

2021 Suzuki Splash Camshaft Sensor

Yes, the 2021-registered Suzuki Splash uses a camshaft position sensor. While the Splash’s production wrapped up earlier in many markets, the K-series petrol engines commonly fitted (K10B 1.0 and K12B 1.2 with VVT) rely on a camshaft sensor for sequential fuel injection and variable valve timing. This is documented in Suzuki workshop literature for the Splash/Ritz and K-series engines, and echoed by mainstream technical data providers (Autodata/Inforapid) and Denso engine management references that specify a dedicated CMP (camshaft position) input alongside the CKP (crankshaft) signal. So, regardless of plate year, a Splash with these engines is built to use a camshaft sensor.

The camshaft sensor’s job is to tell the ECU exactly where the cam is in its rotation, so it can time fuel injection and spark on the correct stroke and control VVT precisely. That precision helps the Splash start quickly, idle smoothly, pull well through the revs, and sip less fuel. If the sensor signal goes missing or messy, the ECU often falls back to a basic strategy using the crank signal, which can mean longer cranking, rough running, increased fuel use, and stored fault codes.

It’s not a regular “replace by kilometres” service item, but it benefits from a quick check during scheduled servicing. A technician should scan for codes like P0340/P0341, look at live data cam/crank synchronisation, and inspect the connector and loom near the cylinder head for oil ingress or chafing. If replacement’s needed, use a quality OEM-equivalent sensor, fit it to the clean mounting face, route the harness as per factory clips, and clear codes. On K-series engines the sensor sits at the cylinder head—typically front side near the timing chain end—so access is straightforward with basic hand tools. No special relearn is usually required, but confirming cam/crank correlation after fitting is good practice.

• Common symptoms of a failing sensor: long crank, misfire at idle, poor fuel economy, loss of VVT performance, and MIL on.
• Before blaming the sensor, check timing chain condition and wiring, as correlation faults can stem from mechanical timing drift or damaged looms.

With proper diagnosis and a quality part, a camshaft sensor swap on a Splash is a quick, reliable fix that keeps the little Suzuki feeling crisp and economical across Aussie and Kiwi roads.

Popular questions

Where is the camshaft sensor on a 2021 Suzuki Splash?
On K10B/K12B engines it’s mounted on the cylinder head at the timing chain end—usually front-right when viewing from the bonnet, reading a slot or tooth pattern on the cam. It’s secured by a small bolt and has a two- or three-pin connector.

Access is generally easy with the engine cover off. A torch helps to spot the connector and confirm the loom isn’t pinched or oil-soaked.

How often should the camshaft sensor be replaced?
There’s no fixed interval. It’s replaced on condition—when fault codes, poor starting, or rough running point to a weak or failed signal, and wiring checks pass. Many sensors last the life of the vehicle with clean oil and intact wiring.

Including a quick scan and visual check during routine servicing is the best prevention, especially on higher-kilometre Splash examples.

Is it safe to drive with a bad camshaft sensor?
If the ECU reverts to a backup strategy, the car may still run, but starting can be slow and performance compromised. Continued driving risks higher fuel use and potential catalyst damage if misfires occur.

It’s best to diagnose and repair promptly to keep the Splash reliable and efficient.