Parts for your 2015 Toyota Corolla-Camshaft sensor

2015 Toyota Corolla Camshaft Sensor

Yes, the 2015 Toyota Corolla does use a camshaft position sensor. In fact, for the 1.8L 2ZR-FE engine fitted to most AU and NZ–delivered 2015 Corolla (model code ZRE172R), Toyota’s service literature shows two camshaft position sensors—one for the intake cam (“A”) and one for the exhaust cam (“B”). This is documented in Toyota’s Repair Manual engine control section (listing DTCs P0340 and P0365 for CMP circuits), the Corolla wiring diagrams (EWD), and the Toyota Electronic Parts Catalogue, all of which identify “Sensor, Camshaft Position” for this model.

On this Corolla, the camshaft sensor’s job is to tell the ECU exactly where each camshaft is. That live position data lets the ECU fire the injectors and spark at the right time and run Dual VVT-i accurately, so the car starts quickly, idles smoothly, pulls cleanly through the rev range and meets emissions targets. If the signal goes missing or sloppy, the ECU can’t keep valve timing in check, and it’ll often drop into a safe strategy with reduced performance.

While the camshaft sensor isn’t a scheduled replacement item, it can be affected by heat, oil contamination, or wiring issues over the vehicle’s life. Good-quality oil at the correct interval is the best preventative care, because gritty or sludgy oil can travel where it shouldn’t and upset sensors around the timing area. During routine servicing, it’s worth a quick look under the bonnet for damaged loom clips, brittle conduit or oil weeping near the sensor bodies.

• Common signs of a crook camshaft sensor: longer cranking, rough idle, hesitation, poor fuel economy, stalling at idle, and a check engine light with codes like P0340 (CMP A) or P0365 (CMP B).
• Simple checks before replacing: confirm clean, tight electrical connectors, inspect the harness for rub-through, verify correct oil level/condition, and scan live data to see if CMP signals drop out intermittently.

Replacement on the 2ZR-FE is a straightforward driveway job for many owners: remove the engine cover, unplug the sensor, undo the single retaining bolt, and gently twist-pull the sensor out. Lightly oil the new O-ring, seat the new sensor squarely, and snug the bolt—no need to swing off it. Reconnect, clear codes, and take a short drive so the ECU can relearn cam/crank correlation. If codes return, recheck wiring and make sure both intake and exhaust CMPs report sensibly in live data. Choosing a quality OEM-equivalent sensor helps avoid repeat faults and drivability gremlins.

• After replacement, confirm: no oil leaks around the sensor, steady idle, restored performance, and no returning fault codes.

Popular questions

How many camshaft sensors does a 2015 Corolla have?
Most Australian and New Zealand 2015 Corolla models with the 2ZR-FE engine use two camshaft position sensors—one monitoring the intake cam and one monitoring the exhaust cam. This matches Toyota service info that lists separate circuits and fault codes for “A” (intake) and “B” (exhaust). If in doubt, checking by VIN in the Toyota parts catalogue or scanning live data will confirm.

Where is the camshaft sensor located on a 2015 Corolla?
They sit on the end of the cylinder head near the timing chain side—one at the intake side and one at the exhaust side. Each is held by a single bolt and sealed with an O-ring. With the engine cover off, they’re typically visible and accessible from above, making inspection and replacement pretty painless.

Can the Corolla run with a faulty camshaft sensor?
It may start and run poorly using fallback strategies, or it may fail to start at all—behaviour depends on which sensor fails and whether the signal is intermittent. Even if it runs, expect sluggish performance, rough idle and disabled VVT-i. It’s best to diagnose promptly with a scan tool and sort the issue before it leaves someone stranded.