Parts for your 2023 Toyota C-hr-Crank angle sensor

2023 Toyota C‑HR crank‑angle‑sensor: purpose, service and replacement

Based on Toyota’s technical literature — including the Toyota Repair Manual, the Electrical Wiring Diagram (EWD) and the Electronic Parts Catalogue (EPC) for the 2023 C‑HR with M20A‑FKS/M20A‑FXS petrol-hybrid and 2ZR‑FXE hybrid engines — this vehicle is fitted with a crank‑angle‑sensor (commonly called the crankshaft position sensor or CKP). It’s a critical engine management input, so it’s absolutely relevant on the 2023 Toyota C‑HR.

The crank‑angle‑sensor monitors the exact position and rotational speed of the crankshaft via a toothed reluctor ring. The engine control module (ECM) uses that signal to time fuel injection and spark, manage variable valve timing, and coordinate start/stop on hybrids. If the signal drops out, the ECM can’t reliably run the engine — cue hard starting, stalling, or a no‑start.

It isn’t a routine “replace-at-X‑kilometres” item, but it does deserve a look during regular 12‑month/15,000‑km services. On the C‑HR, the sensor sits on the engine block aligned with the crank’s reluctor, check the connector for corrosion, the harness for chafe near hot or moving parts, and the sensor body for oil wicking past the O‑ring.

• Common symptoms when it’s on the way out: intermittent no‑start, sudden cut‑out, rough idle, poor fuel economy, and fault codes like P0335/P0339.
• Hybrids still rely on the CKP for engine synchronisation, faults may trigger hybrid system warnings and prevent the engine from starting.

Replacement is straightforward for a trained tech. Disconnect the battery, unplug the connector, remove the retaining bolt, and withdraw the sensor. Lightly oil the new O‑ring, seat the new sensor squarely, route the loom as per the factory clip points, and tighten the bolt to the workshop‑manual torque. Clear DTCs and confirm a clean crank signal with a scan tool or an oscilloscope, then road test. No shims, sealants, or force — the sensor must sit flush on a clean mounting face.

Stick with genuine or OE‑quality (Denso) parts so the signal pattern matches Toyota’s calibration. If faults are intermittent, don’t overlook basics: battery health, engine and chassis earths, and any loom repairs. There’s typically no special programming, the ECM will sync on first start, though clearing codes and performing a brief drive cycle helps verification.

Does the 2023 Toyota C‑HR have a crank‑angle‑sensor?

Yes. Toyota’s Repair Manual, EWD and EPC list a crankshaft position sensor (a.k.a. crank‑angle‑sensor) across the 2023 C‑HR’s petrol and hybrid engines. It’s essential for timing fuel and spark and for engine start/stop control.

What are signs the crank‑angle‑sensor is failing on a 2023 C‑HR?

Expect occasional no‑start, sudden stalling, uneven idle, hesitant acceleration and stored codes like P0335/P0339. The tachometer may drop to zero during a stall. On hybrids, you may see hybrid system warnings and the engine refusing to start.

Does replacing the crank‑angle‑sensor need programming?

Normally, no. Fit the new sensor, ensure correct installation and clear fault codes. The ECM will synchronise automatically. A quick drive cycle and live‑data check helps confirm the new sensor is reading cleanly.