Parts for your 2018 Suzuki Splash-Camshaft sensor

2018 Suzuki Splash camshaft sensor — what it does and how to look after it

Based on Suzuki’s factory workshop information for the Splash/Ritz (K10B 1.0L, K12B 1.2L, and 1.3 DDiS diesel) and the Suzuki Electronic Parts Catalogue that lists a dedicated Camshaft Position Sensor for these engines, this model is fitted with a camshaft sensor and it is absolutely relevant to the 2018-registered Splash.

The camshaft sensor on a 2018 Suzuki Splash is the ECU’s timing guru. It tracks the cam’s exact position so the engine computer can fire the injectors sequentially, trigger the coils at the right moment, and manage variable valve timing where fitted. Paired with the crank sensor, it keeps the little Suzuki starting crisply, idling smoothly, and sipping fuel rather than guzzling it. When the sensor signal goes missing or erratic, expect long cranks, rough running, misfires, poor economy, and a glowing check engine light with codes like P0340–P0344. In some cases it’ll refuse to start altogether.

Good news: the sensor itself is a solid-state unit with no routine service interval. Think of it as “inspect, not replace.” During regular servicing, it’s smart to:

• Visually check the connector and wiring under the bonnet for oil contamination, brittle loom tape, or chafing near the timing cover.
• Make sure the sensor’s mounting is snug and clean, oil weepage from the rocker cover can wick into connectors and upset the signal.
• Scan for fault codes if there’s any odd starting behaviour or misfire, especially when the engine’s hot.

If replacement is needed, a quality OEM-spec sensor is the way to go. It’s typically mounted on the cylinder head near the timing chain end (diesel versions place it at the cam drive, too). With the battery disconnected, it’s usually a straightforward remove-and-refit with a small socket or spanner. Don’t over-torque the retaining bolt, keep the mating face clean, and route the harness in the factory clips. Most Splashes won’t need programming, clear codes, start the engine, and let it idle so the ECU relearns its trims. If a new sensor doesn’t fix a cam/crank correlation code, a stretched timing chain or damaged reluctor may be the real culprit.

When to replace? If there’s a confirmed fault code, consistent hot-start dramas, or clear wiring damage. Proactive checks at service time save headaches later and keep those kilometres carefree.

• Where is the camshaft sensor on a 2018 Suzuki Splash?
  It’s located on the cylinder head at the timing chain end, accessed from the top of the engine bay. On petrol K10B/K12B engines, look near the upper timing cover. On the 1.3 DDiS diesel, it’s similarly positioned at the cam drive. A torch helps to spot the small two- or three-pin connector.
• Can the Splash run without a camshaft sensor?
  Usually no. Some ECUs can attempt a fallback using only the crank sensor, but the Splash may crank longer, run poorly, or not start at all. It’s best to fix the sensor or wiring promptly to avoid further issues and poor fuel economy.
• Do I need to program anything after replacing the sensor?
  Generally, no programming is required. Clear any fault codes, start the engine, and let it idle so the ECU can stabilise. If faults return, check wiring integrity and mechanical timing before blaming the new sensor.