Parts for your 2021 Toyota Camry-Crank angle sensor

2021 Toyota Camry crank-angle sensor: what it does, and when to replace it

The 2021 Toyota Camry absolutely uses a crank-angle sensor, more commonly called the crankshaft position sensor (CKP). Toyota’s 2021 Camry Repair Manual (via Toyota TIS) includes diagnostics for DTC P0335 “Crankshaft Position Sensor ‘A’ Circuit,” and the 2021 Camry Electrical Wiring Diagram labels the unit as the “Crank Position Sensor (NE)” feeding the ECM. Toyota’s genuine parts catalogue also lists a CKP sensor for the A25A-FKS/A25A-FXS 2.5-litre engines and the 2GR-FKS 3.5-litre V6. Those factory references confirm the sensor is fitted and essential to engine management.

On this Camry, the crank-angle sensor monitors crankshaft speed and exact rotational position so the ECM can time fuel injection, spark, and variable valve timing precisely. If the signal drops out or goes skew‑whiff, you’ll see hard starting, cutting out at idle, misfires, poor fuel economy, and often a no‑start with the check engine light on. The ECM also relies on the CKP to validate cam timing correlation, so it’s a key player in overall drivability.

It isn’t a scheduled service item in Australia or New Zealand, but it pays to keep an eye on the basics:

• Look for oil seepage around the sensor boss or a damaged O‑ring.
• Check the wiring loom for rub-through, heat damage, or loose connectors.
• If a fault code appears (P0335/P0339 etc.), verify power, ground, and signal integrity before replacing parts.

Replacement is typically straightforward. With the bonnet up and battery negative disconnected, the sensor is unplugged, a single retaining bolt is removed, and the sensor is withdrawn. A light smear of clean engine oil on the new O‑ring helps it seat without nicking. Refit the bolt and torque to the factory spec, reconnect, and clear codes. On the 2.5‑litre four, the CKP sits low on the block near the crank pulley area, on the V6 it’s mounted near the transmission bellhousing. Access varies, but most workshops allow 0.5–1.0 hour.

Good practice is to use a quality OEM‑spec sensor, inspect the reluctor (tone) wheel area for debris, and confirm with a scan tool that engine RPM reads cleanly during cranking. No special programming is typically required after CKP replacement on the 2021 Camry, though performing an idle learn and clearing any stored adaptations is wise. If a related camshaft sensor code is present, sort both sides of the system so timing correlation is happy and cold starts are crisp.

Popular questions

Where is the crank-angle sensor on a 2021 Camry?
On the 2.5‑litre four-cylinder it’s mounted low on the engine block near the crank pulley area. On the 3.5‑litre V6 it’s usually at the rear of the engine near the bellhousing. Either way, it reads a toothed wheel on the crank to provide angle and speed data to the ECM.

Access can be tight, so the vehicle may need to be safely raised. A torch and a small 10 mm socket generally do the trick.

Can you drive with a failing crank-angle sensor?
Sometimes the engine will run poorly before it quits, but once the signal drops completely, it usually won’t start. Driving with an intermittent CKP can cause stalling at the worst times, so it’s best to diagnose and fix it promptly.

If the check engine light is on with a CKP code, avoid long trips and get it checked with a scan tool to confirm signal quality during cranking and idle.

Does a replacement CKP need programming on a 2021 Camry?
Generally, no. Fit the new sensor, clear codes, and verify a clean RPM signal. Some workshops will perform an idle learn or short road test to let the ECM settle trims.

If correlation faults remain, check camshaft sensor signals and timing components, as the ECM expects both crank and cam data to agree.