Parts for your 2012 Suzuki Splash-Crank angle sensor

2012 Suzuki Splash crank angle sensor: what it does and when to replace it

Based on Suzuki’s own technical literature and parts catalogues, the 2012 Suzuki Splash is fitted with a crank angle sensor (commonly called a crankshaft position sensor, CKP). This is documented in the Suzuki Splash/Opel Agila B Engine Control System section of the factory service manual (CKP inspection and signal checks are specified), and it’s listed in the Suzuki Electronic Parts Catalogue for 2012 Splash models with K10B/K12B petrol and 1.3 DDiS diesel engines as “Sensor, Crankshaft Position.” Modern EFI management (Bosch/Magneti Marelli ECUs used on these engines) relies on this signal for ignition timing and fuel injection, so the sensor is absolutely relevant on this vehicle.

On the 2012 Splash, the crank angle sensor keeps the ECU informed about crankshaft speed and exact position. That allows the ECU to fire the coils and injectors right on cue, manage idle quality, and keep emissions tidy. If the signal drops out, the engine may crank but not start, stall unexpectedly, or throw a check engine light with codes like P0335.

As part of routine servicing, it’s worth giving the CKP and its wiring a quick once-over. There isn’t a scheduled replacement interval, but heat, oil contamination, and vibration can fatigue the sensor or its connector. A visual check for damaged loom insulation, oil leaks tracking onto the sensor, or loose retaining hardware under the bonnet goes a long way. If cleaning is needed, unplug the connector, use electrical contact cleaner on the plug, and gently wipe the sensor face with a lint-free cloth—no abrasives, no compressed air up close.

Replacement is straightforward for a competent DIYer: disconnect the battery, safely raise the front if access requires it, locate the sensor on the engine block where it reads the crank trigger wheel (commonly at the gearbox bellhousing area or near the crank pulley), unplug the connector, remove the single retaining bolt, and withdraw the sensor. Lightly oil the O-ring on the new unit, seat it squarely, refit the bolt, reconnect, and clear any fault codes. Tighten fasteners to the manufacturer’s spec—don’t just lean on it with a long spanner.

A failing CKP often shows up as hard starts when hot, intermittent stalling, or a sudden no-start. If those symptoms crop up on a Splash, testing with a scan tool for RPM during cranking and checking for stored codes is the quickest way to confirm. When replacing, stick to an OEM or reputable brand sensor—cheapies can cause erratic signals that will do your head in.

Technical sources referenced: Suzuki Splash/Opel Agila B Factory Service Manual (Engine Control System – Crankshaft Position Sensor diagnostics), Suzuki Electronic Parts Catalogue (2012 Splash models listing “Sensor, Crankshaft Position”), and OEM engine management strategy notes for K10B/K12B and 1.3 DDiS platforms indicating mandatory CKP input for ignition and fuel control.

Where is the crank angle sensor on a 2012 Suzuki Splash?
It’s mounted on the engine block reading a toothed wheel on the crankshaft. On most Splash engines it’s positioned low on the block at the gearbox bellhousing or near the crank pulley. Access varies by engine (K10B/K12B/DDiS), but it’s generally a single-bolt sensor with a two- or three-pin plug.

What are common symptoms of a bad crank angle sensor on a Splash?
Typical signs include a crank/no-start, random stalling at idle or when hot, rough running, and a check engine light with codes like P0335. A scan tool that shows zero RPM while cranking is a big clue the CKP signal has dropped out.

Does the crank angle sensor need regular servicing?
There’s no fixed replacement interval. During routine services, check for oil leaks onto the sensor, brittle wiring, or loose connectors. Replace the sensor if fault codes persist or if it fails basic signal tests. Use quality parts and refit to spec to avoid comeback issues.