Parts for your 2001 Suzuki Swift-Crank angle sensor

2001 Suzuki Swift crank angle sensor: what it does and how to look after it

Based on the Suzuki Swift SF413 Service Manual (1999–2003, Engine Electrical), Autodata technical data for the 2001 Swift 1.3 (G13BB), and the Haynes Suzuki Swift manual (1989–2001), the 2001 Suzuki Swift does use a crank angle sensor. On this model the sensor is integrated into the distributor and provides the ECU with engine speed and position signals, some documentation calls it a crank angle sensor (CAS), others list it as crankshaft/camshaft position within the distributor.

On a 2001 Swift, that crank angle sensor is the timing boss. It tells the ECU exactly where the pistons and valves are so the computer can fire the spark and inject fuel at the right moment. No clean, accurate signal equals rough running, misfires, or a no‑start. The distributor‑mounted CAS is driven off the cam, so it effectively reports both cam phase and crank speed to the ECU in one go.

While it’s not a scheduled service item, it’s smart to give it some love during regular servicing. The team checks for:

• Cracked or oil‑soaked distributor caps, worn rotors and loose terminals that can corrupt the CAS signal.
• Damaged wiring or a crusty connector at the distributor plug.
• Oil ingress through the distributor shaft seal, which can fog an optical pickup or upset a Hall/magnetic sensor.
• ECU fault codes like P0335/P0340 and a dodgy tachometer, hard starting when hot, random stalling, or long crank times.

If replacement’s on the cards, many G13BB Swifts require swapping the whole distributor because the sensor isn’t always sold separately. They’ll:

1. Disconnect the battery, note radio codes, and mark the distributor’s position relative to the head for easy refit.
2. Inspect the cap and rotor, replace if worn to protect the new sensor signal.
3. Install the new unit or sensor, align to the marks, and verify ignition timing as per the service manual procedure.
4. Clear any codes, perform an idle relearn if needed, and road test over a few kilometres to confirm clean starts and smooth pull.

A quick oscilloscope check of the CAS waveform is gold for diagnosis, but a basic multimeter and scan tool can still get the job done. Use quality parts that match OE specs, cheap copies can give flaky signals and leave the Swift stranded under the bonnet up the road. Keep the connector clean, the loom supported, and fix any oil leaks into the distributor early—small jobs that save big headaches.

Popular questions

Where is the crank angle sensor on a 2001 Suzuki Swift?
It’s built into the distributor on the end of the camshaft, at the side of the cylinder head. There isn’t a separate sensor at the crank pulley on most AU/NZ‑delivered G13BB Swifts—everything the ECU needs comes from that distributor pickup.

What are the common symptoms of a failing crank angle sensor on this model?
Hard starting (especially hot), intermittent stalling at lights, random misfires, a dead tachometer during crank, and stored faults such as P0335/P0340 are all common. In many cases it’ll be the sensor signal breaking up due to heat, oil contamination, or internal wear in the distributor.

Can the sensor be replaced separately from the distributor?
Some aftermarket options sell the pickup separately, but many workshops replace the complete distributor for reliability and warranty reasons. If fitting just the sensor, inspect the shaft bush and seal—if they’re worn, a full distributor makes better sense.