Parts for your 2013 Suzuki Splash-Crank angle sensor

2013 Suzuki Splash crank angle sensor: what it is, where it lives, and how to look after it

Based on technical references including the Suzuki Splash/Ritz Service Manual (Engine Control System), the Suzuki K12B/K10B engine workshop literature, Vauxhall/Opel Agila B TIS data (the Splash’s platform twin), and Autodata engine management diagrams, the 2013 Suzuki Splash is fitted with a crankshaft position sensor—commonly called a crank angle sensor (CAS). It’s present on both the 1.2-litre K12B petrol and the 1.3 DDiS diesel. So yes, this part is absolutely relevant to the 2013 Splash.

The crank angle sensor is the ECU’s primary timing and speed reference. It reads a toothed wheel on the crank and sends a precise signal so the ECU knows exactly where the pistons are and how fast the engine’s spinning. That lets the ECU fire the injectors and spark at the right moment, keeping starting crisp, idle smooth, and fuel economy on point. Lose that signal and the Splash may crank but won’t start, a flaky signal can cause random stalling, misfires, surging or a dead tachometer.

There’s no set replacement interval for a CAS on the Splash, but it should be checked during major services. Typical issues are heat-soaked sensors, oil contamination, or damaged wiring near the plug. A quick health check under the bonnet goes a long way:

• Look for chafed wiring or a loose connector at the sensor.
• Check for oil leaks that could wick into the plug.
• Scan for codes like P0335–P0339 (crank sensor range/performance, circuit, or correlation faults).

On the K12B petrol, the sensor mounts low on the block near the crank pulley, access is from under the front, with the splash shield off. On the DDiS diesel, it typically reads the flywheel at the bellhousing. Replacement is straightforward: disconnect the battery, unplug the sensor, remove the retaining bolt, ease the sensor out, lightly oil the O-ring on the new unit, refit, and reconnect. Use a quality OEM-equivalent sensor and avoid forcing the tip against the reluctor. After installation, clear any fault codes and let the ECU relearn idle with a short drive.

Practical tips Aussie and Kiwi owners appreciate:

• If the Splash intermittently dies hot and then restarts when cooled, the CAS is a prime suspect.
• Keep the area clean, metallic debris on the sensor tip can distort the signal.
• If both crank and cam sensor codes appear, prioritise the crank sensor first—it’s the master sync.

Popular questions about 2013 Suzuki Splash crank angle sensors

Where is the crank angle sensor on a 2013 Suzuki Splash?
On the 1.2 K12B petrol, it’s mounted low on the front/right side of the engine block, reading a toothed wheel near the crank pulley—best accessed from underneath with the engine under‑tray removed. On the 1.3 DDiS diesel, it’s commonly at the gearbox bellhousing, reading the flywheel teeth.

If unsure, follow the wiring from the lower engine harness, the plug is a small two or three‑pin connector leading to a sensor held in by a single bolt.

Does the crank angle sensor need routine replacement?
No set interval. It’s a “replace on condition” item. During major services, inspect for wiring damage, oil contamination, and scan for related fault codes. Many last the life of the vehicle, but age, heat, and vibration can eventually take their toll.

If you’re getting hard starts, random stalling, or codes P0335–P0339, test and replace as needed rather than waiting for a total no‑start under time pressure.

Can a faulty crank angle sensor cause a no‑start?
Yes. If the ECU can’t see accurate crank speed/position, it won’t trigger fuel and spark, so the engine will crank but not fire. Sometimes the failure is intermittent—hot starts fail, then it runs fine once cooled.

Before throwing parts at it, rule out basics like battery voltage and the sensor connector. A scan tool showing zero RPM while cranking is a big hint the CAS signal is missing.