Parts for your 2022 Suzuki Splash-Camshaft sensor

2022 Suzuki Splash Camshaft Sensor — Fitted, what it does, and how to look after it

Yes, a camshaft sensor is relevant and used on the Suzuki Splash. Technical documentation for Splash/Ritz models with K10B (1.0L) and K12B (1.2L) engines confirms a dedicated Camshaft Position (CMP) sensor mounted at the cylinder head to support sequential fuel injection, ignition timing and variable valve timing logic. This is consistent with OBD‑II requirements and Suzuki’s own engine control strategies.

• Suzuki Splash (RB) Service Manual: Engine Electrical – Camshaft Position (CMP) Sensor description, DTC P0340/P0341 diagnostic flow.
• Suzuki K10B/K12B Engine Workshop Information: CMP sensor location on cylinder head and associated ECM inputs.
• Suzuki Swift (FZ/NZ) K12B Service Manual: shared engine architecture confirming CMP use for sequential injection and VVT.

On a 2022‑on‑road Suzuki Splash, the camshaft sensor is a quiet achiever. It tells the engine control module exactly where the cam is in its rotation so the ECU can time fuel injection and spark bang on, especially at start‑up and at low revs. It also helps the ECU keep variable valve timing in check on models with intake VVT, which means better torque around town and nicer fuel economy on the open road.

When a CMP starts going out to lunch, the Splash may crank longer before firing, stumble at idle, or feel flat under load. The check‑engine lamp will usually hop on with codes like P0340 or P0341. Because the ECU can sometimes guess cam position from the crank sensor, the car may still run, but it’ll often switch to batch injection and play it safe—chewing a bit more fuel and losing some zip.

There’s not much “maintenance” to do on the sensor itself, but keeping connectors clean and the upper engine area free of oil leaks helps. When replacement’s needed, go for an OE or quality brand—cheapies can be fussier about signal quality. The Splash’s CMP lives on the cylinder head near the timing end, access is usually straightforward with basic hand tools. Always inspect the wiring loom for rubbed insulation or oil ingress, fit a fresh O‑ring if supplied, seat the sensor square, and clip the connector until it positively clicks. Clear the codes, then road‑test. Some ECUs will do a short relearn on the first few starts, that’s normal behaviour.

If issues persist after swapping the sensor, don’t forget the basics: battery health, grounds, and any timing chain stretch or reluctor ring damage can mimic a dodgy sensor. A quick live‑data check of cam/crank sync will save a heap of guesswork.

• Use scan‑tool to confirm DTCs and monitor cam/crank synchronisation.
• Check harness routing and connectors for oil, corrosion or tension.
• Replace with trusted parts, clear codes, verify warm and cold starts.

Where is the camshaft sensor on a 2022 Suzuki Splash?
On K10B and K12B Splash engines, the camshaft position sensor sits on the cylinder head at the timing chain end. It reads a trigger on the cam to report position to the ECU. It’s typically secured by a single small bolt and sealed with an O‑ring.

Access is usually from the top with the engine cover off. A torch and a small ratchet make the job straightforward.

What are the signs the Splash’s camshaft sensor is failing?
Common giveaways include longer cranking, rough idle, flat spots when accelerating and the check‑engine light with codes like P0340/P0341. Fuel economy can slip and the engine may feel a bit doughy because the ECU reverts to a safer, less precise strategy.

If symptoms are intermittent, gently wiggle the harness with the engine idling—if it stumbles, suspect the connector or wiring as much as the sensor itself.

Does a new camshaft sensor need programming?
On most Splash ECUs, no special programming is needed. Fit the sensor, clear any fault codes and let the ECU relearn during normal driving. The idle may settle over a couple of warm‑up cycles as the ECU trims fuel and timing.

If codes immediately return, recheck the connector pins, O‑ring seating and wiring continuity, then review live data for cam/crank sync errors.