Parts for your 2010 Suzuki Sx4-Crank angle sensor

2010 Suzuki SX4 crank-angle sensor (crankshaft position sensor)

Technical references confirm the 2010 Suzuki SX4 is fitted with a crank-angle sensor, more commonly called the crankshaft position (CKP) sensor. Suzuki’s factory service literature for the SX4 (Engine Control section, DTC P0335/P0336: Crankshaft Position Sensor “A” Circuit) specifies the sensor’s function, testing and fault codes. Genuine parts catalogues for the 2010 SX4 list the CKP sensor as a service part for both M16A and J20-series engines, and independent service data (e.g., Autodata/Haynes) includes CKP signal checks in SX4 no-start and stall diagnostics. These sources collectively show the CKP/crank-angle sensor is standard and essential on this model.

On the 2010 Suzuki SX4, the crank-angle sensor is the engine’s reference point for timing. It reads a toothed wheel on the crankshaft and sends a clean on/off signal the ECU uses to decide when to spark and when to inject fuel. Without a solid CKP signal, the SX4 can crank forever, stumble, or cut out, and it’ll usually throw the check engine light with codes like P0335.

It’s not a routine “change-it-every-service” item, but it does deserve attention during regular servicing. A quick visual once-over under the bonnet to check the sensor harness, the connector lock, and nearby oil leaks is smart. Oil and grime can wick into the plug and cause intermittent misfires or a no-start when hot. Because the CKP on the SX4 is a fixed, non-adjustable type, there’s no gap setting to fiddle with—if it’s damaged or the mounting face is bent, replacement is the go.

• Common symptoms of a failing SX4 crank-angle sensor: long crank/no start, random stalling at idle, hesitation, tacho drop-outs, poor fuel economy, and MIL on with P0335/P0336.
• Basic check: scan tool live data for engine RPM during cranking. No RPM reading generally points at the CKP signal or its wiring.

Replacement is straightforward for a competent home mechanic: disconnect the battery, access the sensor where it mounts to the block (often near the bellhousing), unplug, remove the retaining bolt, and swap it out. Lightly oil the O-ring on the new sensor, seat it square, and torque the bolt to spec from the service manual. Clear codes and road test. If faults return, inspect the harness from the sensor back to the ECU for rubbing, heat damage, or corrosion at the connector. Genuine or high-quality aftermarket sensors typically restore crisp starts and smooth running, and there’s no relearn needed on most SX4 ECUs—just plug in and go. That bit of preventative care can save a roadside drama somewhere between towns in the Kiwi backblocks or out on an Aussie B-road.

FAQ: Where is the crank-angle sensor on a 2010 SX4?

It’s mounted to the engine block reading a toothed wheel on the crankshaft, commonly at the transmission bellhousing area. Access varies by engine (M16A 1.6 or J20 2.0), but it’s typically reached from the engine bay with basic hand tools.

FAQ: Does the crank-angle sensor need regular servicing?

Not as a scheduled replacement. It’s best practice to inspect the wiring and connector at service time, especially if there are oil leaks. Replace the sensor only if it’s faulty or damaged.

FAQ: What happens if it fails while driving?

The engine may stumble, lose power, or stall and then refuse to restart until it cools. The ECU will often log P0335/P0336. If that happens, it’s wise to arrange a tow and test the CKP signal rather than repeatedly cranking.