Parts for your 2023 Toyota C-hr-Camshaft sensor

2023 Toyota C‑HR Camshaft Sensor — Purpose, faults and service advice

Yes, the 2023 Toyota C‑HR is fitted with a camshaft position sensor. Toyota’s technical publications for the C‑HR (model codes including ZYX10 and related variants) identify a “Camshaft Position Sensor (G2/G22)” as part of the SFI system, used for valve timing and injection synchronisation. The Toyota Repair Manual (Engine/Hybrid System > SFI System), the New Car Features (NCF) for the 2ZR‑FXE/M20A engines, and the Toyota Electronic Parts Catalogue all list a camshaft position sensor for these engines. These sources make it clear the ECM relies on the sensor for sequential fuel injection, ignition timing, and VVT operation, including on hybrid variants sold in Australia and New Zealand.

On the 2023 C‑HR, the camshaft sensor’s job is to tell the engine control module exactly where the camshaft is in its rotation. Paired with the crank sensor, it lets the ECM fire the injectors and spark at the right moment and dial in the variable valve timing for smooth power, good fuel economy, and clean emissions. If it goes out of whack, the car can still try to run using crank signals, but you’ll cop rough running, lazy performance, and a dash light.

It’s not a scheduled service item, so there’s nothing to “replace by kilometres” here. What helps is keeping connectors clean and dry, using proper engine covers after servicing, and checking for oil leaks that could wick into the plug. If there’s a Check Engine Light with codes like P0340–P0344, slow cranking, poor fuel use, or the hybrid system feeling hesitant to start the engine, it’s time to test the sensor and wiring.

Replacement is straightforward for a trained tech: disconnect the 12‑V negative terminal, unplug the sensor, remove the retaining bolt, swap in a quality OEM‑spec sensor with a fresh O‑ring, and torque the bolt to the workshop manual spec. After refitting, clear the codes and road test, no special relearn is usually required. For owners, the best move is preventative care and correct diagnosis—don’t throw parts at it without scanning and pin‑checking the loom first. When a new sensor is needed, using a genuine or high‑quality equivalent avoids intermittent dramas and keeps the C‑HR feeling perky and efficient.

• Common symptoms: hard starting, misfire at idle, flat spots, reduced economy, MIL on.
• Helpful checks: scan for DTCs, inspect connector pins and harness routing, confirm clean signal.
• Good practice: avoid cheap knock‑offs, keep oil leaks in check, and follow torque/specs in the Toyota Repair Manual.

FAQs

Does the 2023 C‑HR have one or two camshaft sensors?
It depends on the engine variant. The 1.8‑litre 2ZR‑FXE hybrid commonly uses a dedicated cam sensor on the intake side, while some other Toyota Dynamic Force engines use two (intake and exhaust). The Toyota EPC for your VIN will confirm the exact count and part.

Is the camshaft sensor a regular service item?
No. There’s no scheduled replacement interval. It’s checked only if there are drivability issues or fault codes. Keeping connectors clean and fixing any oil seepage near the sensor helps it last the distance.

Can a bad camshaft sensor cause a no‑start?
It can cause an extended crank or a start‑stall, and the engine may run poorly if it does start. The ECM can sometimes limp on the crank signal, but performance and economy will usually suffer until the cam signal is restored.