Parts for your 2001 Toyota Echo|yaris-Crank angle sensor

2001 Toyota Echo/Yaris crank angle sensor

Based on Toyota’s own service literature for the NCP10/NCP12 platform (Engine Control – 1NZ‑FE/2NZ‑FE) and the Electrical Wiring Diagram for this model, the 2001 Toyota Echo/Yaris is fitted with a crank angle sensor, identified in Toyota docs as the Crankshaft Position Sensor (CKP) providing the NE signal to the ECM. Factory diagnostics list related DTCs (such as P0335/P0336/P0339), and Toyota’s parts catalogue also lists a CKP for these engines. So yes — this sensor is relevant and used on the 2001 Echo/Yaris.

On this little Echo/Yaris, the crank angle sensor’s whole job is to tell the ECU exactly where the crank is and how fast it’s spinning. That timing info is the backbone for fuel injection and spark on the 1NZ‑FE/2NZ‑FE engines. If the signal goes missing or messy, the car can be hard to start, run rough, stall at the lights, or throw a check engine light.

There’s no set replacement interval — the CKP isn’t a wear item — but it’s smart to give it some attention while servicing. A quick look under the bonnet for oil seepage around the timing cover and a check of the wiring and connector for brittleness or green corrosion can save headaches later. If there’s an occasional crank/no-start, long cranking, or the dash light is up with a P0335-series code, it’s time to test it properly with a scan tool and, if needed, replace it.

• Typical symptoms of a dodgy CKP: long crank or no-start, intermittent stalling, rough idle, misfires, and the MIL on with P0335/P0336/P0339.
• Replacement tips: disconnect the battery, unplug the sensor, remove the hold-down bolt, twist and pull the sensor out, lightly oil the new O‑ring, seat it cleanly, and tighten the bolt to spec from the Toyota manual. Clear codes and road-test.
• No special “relearn” is usually required on these Toyotas, the ECU sorts itself once it sees a clean signal.

For peace of mind, use a quality sensor (genuine or reputable aftermarket) and don’t ignore oil leaks — oil on the connector can wick into the wiring and mimic a sensor fault. If in doubt, a quick scope check or live-data look at engine speed during cranking will confirm whether the CKP is playing nice.

FAQs

Where is the crank angle (crankshaft position) sensor on a 2001 Echo/Yaris?

On the 1NZ‑FE/2NZ‑FE, it’s mounted to the engine block at the front near the timing chain cover, facing a toothed wheel on the crank. It’s accessed from the top or underneath depending on tools and how the accessories sit. Look for a small two‑pin sensor held in with a single bolt and an O‑ring.

Does a new CKP need programming or relearning?

Generally, no. On these Toyotas the ECU will recognise the new sensor once it sees a clean NE signal. After fitting, clear any stored codes, start the car, and take it for a short drive to confirm stable RPM and no return of faults.

Is it safe to keep driving with a crank angle sensor fault?

Not really. An intermittent CKP can cause sudden stalling or a no‑start at the worst time. If the Echo/Yaris is showing CKP codes or stumbling at idle, sort it promptly to avoid being stranded.