Parts for your 2020 Toyota Rav4-Crank angle sensor

2020 Toyota RAV4 crank-angle-sensor (crankshaft position sensor)

Yes, the 2020 Toyota RAV4 is fitted with a crank-angle-sensor, more commonly called the crankshaft position sensor (CKP) in Toyota documentation. Technical sources that confirm this include the Toyota Repair Manual for the A25A-FKS/A25A-FXS and M20A-FKS engines (which details the CKP circuit and test procedures), the Toyota Electronic Wiring Diagram for 2020 RAV4 (showing the CKP signal to the ECM), common DTCs such as P0335–P0339 listed in Toyota service literature, and Toyota parts catalogues that list a Crankshaft Position Sensor for these engines.

The crank-angle-sensor’s job is to tell the engine control module exactly where the crankshaft is and how fast it’s spinning. It reads a toothed wheel on the crank and sends a precise signal so the ECM can fire the spark and inject fuel at the right moments. It also helps with misfire detection and stable idling, cold starts, and smooth acceleration. Without a clean, reliable CKP signal, the RAV4 can be hard to start, stall, or refuse to run altogether.

It’s not a routine service item, but it does benefit from a bit of care during regular servicing. Keeping oil leaks in check prevents contamination of the sensor and connector. Avoid blasting the area with a pressure washer, and make sure the harness isn’t rubbing on the block or exhaust. If there are check engine lights like P0335, long crank, stalling, or the tacho drops to zero unexpectedly, it’s time for diagnosis.

When replacement is needed, the approach is straightforward for a workshop:

• Confirm with scan data and visual checks first: look for damaged wiring, poor earths, or oil ingress at the connector.
• Use a genuine or quality OE-equivalent sensor, cheap copies can give flaky signals.
• Clean the mounting bore, lightly oil the O-ring, seat squarely, and torque the retaining bolt to spec.
• Route the loom as per factory clips to keep it clear of heat and moving parts, then clear DTCs and verify RPM signal and warm start.

Signs the CKP may be failing include intermittent no-start, sudden cut-out while driving, rough idle, and poor fuel economy. Hybrids can also set multiple warning lights if the engine can’t sync. Left unchecked, it’s more of a safety and convenience risk than a catastrophic engine issue, so it’s smart to sort it promptly.

FAQs

Where is the crank-angle-sensor on a 2020 RAV4?
On A25A-FKS/FXS engines it’s typically mounted low on the block near the transmission bellhousing, reading the crank reluctor. On M20A-FKS 2.0L models it’s in a similar low position near the front cover. Access varies by engine and market spec, so a lift and the factory manual make life easier.

Can you drive with a faulty crank-angle-sensor?
Sometimes the vehicle will start and then stall, or it may not start at all. If it does run, it can cut out without warning, which isn’t safe. It usually won’t damage the engine, but it can leave the driver stranded. Best bet: get it diagnosed and repaired before the next big trip.

Does the crank-angle-sensor need regular servicing?
There’s no scheduled replacement. During services, check for oil leaks around the sensor, inspect the connector for corrosion, and ensure the wiring is secured away from heat. If the check engine light flags CKP-related codes, have it tested rather than guessing parts.