Parts for your 2015 Toyota Camry-Knock sensor

2015 Toyota Camry Knock Sensor — Purpose, Fitment and Service Advice

Technical references confirm the 2015 Toyota Camry is fitted with a knock sensor. Toyota’s repair manual for the 2AR-FE 2.5-litre four-cylinder and 2GR-FE 3.5-litre V6 lists the knock sensor as a monitored input to the engine control module, with diagnostic trouble codes such as P0324, P0325, P0327, P0328 and (for the V6) P0330. Toyota’s Electronic Parts Catalogue for the 2015 Camry also shows the knock sensor as a serviceable component on both engine options. That means this part is relevant to every 2015 Camry variant using these engines.

On this model, the knock sensor is a piezoelectric microphone that listens for abnormal combustion (pinging/detonation). When it detects knock, the engine computer trims ignition timing and, if needed, enriches fuel to protect the engine. The result is smoother running, maintained performance on different octane fuels, and better long-term reliability. Without a healthy sensor, the ECU can’t properly control timing, which may lead to sluggish performance, higher fuel use, or—in worst cases—engine damage under load.

While the knock sensor isn’t a routine replacement item, it’s smart to address it during relevant engine work. On the 2.5L 2AR-FE, the sensor lives on the block below the intake manifold. On the 3.5L 2GR-FE, there are two sensors in the “V” under the intake manifold. Because access requires manifold removal, many workshops recommend inspecting the sensor, harness, and connector whenever the manifold is off, and replacing the sensor(s) if there’s cracking, corrosion, or a history of knock-related fault codes.

• Common signs of trouble: check engine light with P0325/P0330-family codes, audible ping under load, flat acceleration, or poor economy.
• Good practice: use the specified OEM-equivalent sensor, keep the mating surface clean, and torque to the workshop manual spec to ensure proper signal.
• Extra checks: confirm no coolant or oil leaks are contaminating the valley area (V6) and inspect the wiring loom for brittleness or rub-through under the bonnet.

When servicing a 2015 Camry, professional diagnosis with a scan tool and a quick live-data check of knock feedback can save guesswork. If replacement is needed, combining it with intake gasket renewal and a fresh PCV hose or brittle vacuum lines helps avoid repeat labour down the track. It’s a tidy way to keep this Camry humming across Aussie and Kiwi roads.

Popular questions about the 2015 Toyota Camry knock sensor

Where is the knock sensor located on a 2015 Camry?
On the 2.5L 2AR-FE, it’s bolted to the engine block beneath the intake manifold. On the 3.5L 2GR-FE V6, there are two sensors mounted in the valley under the intake manifold. Access generally requires removing the manifold.

What fault codes point to a bad knock sensor on this model?
Typical codes include P0324 (knock control system error), P0325 (knock sensor circuit, Bank 1), P0327/P0328 (low/high input), and on V6 models P0330 (Bank 2). Codes should be confirmed with wiring and connector checks before parts replacement.

Is it safe to drive with a failed knock sensor?
The vehicle will usually run, but the ECU may pull timing and reduce performance to protect the engine. Prolonged driving—especially under heavy load or on hot days—can risk engine damage if detonation isn’t being managed correctly. Prompt diagnosis and repair is the safer call.