Parts for your 2014 Lexus Is-Crank angle sensor

2014 Lexus IS crank angle sensor (crankshaft position sensor)

According to Lexus/Toyota technical sources—the 2014 IS Repair Manual (Engine/Hybrid System sections covering the NE signal and DTC P0335), Lexus New Car Features for the XE30 platform, and the Toyota/Lexus Electronic Parts Catalogue listing “Sensor, Crank Position” for IS 250 (4GR‑FSE), IS 350 (2GR‑FSE) and IS 300h (A25/2AR‑FSE based hybrid)—the 2014 Lexus IS is fitted with a crank angle sensor, officially termed the crankshaft position sensor (CKP).

On the 2014 Lexus IS range, the crank angle sensor reads a toothed wheel on the crankshaft to tell the engine computer exactly where each piston is and how fast the engine’s spinning. Together with the cam sensors, it times spark, fuel injection, VVT‑i commands and misfire monitoring. If the signal drops out, the car can crank without starting, stall at idle, or go into limp mode. Common fault codes are P0335–P0339.

Lexus doesn’t schedule the CKP as a routine replacement item. It generally lasts the life of the vehicle, but heat, oil contamination, vibration or wiring damage can cause trouble. As part of regular servicing it’s smart to:

• Visually check the sensor connector and harness routing for chafe, oil saturation or corrosion.
• Address any front or rear main seal oil leaks that could soak the sensor.
• If there’s a long crank, random stalling or a no‑start, scan live data for steady cranking RPM and check for CKP‑related DTCs.

Replacement is straightforward for a competent tech. The sensor sits on the engine block reading the crank reluctor, access is typically from underneath once the under‑covers are off. A practical approach is:

1. Disconnect the negative battery terminal and safely raise/support the vehicle.
2. Unplug the CKP connector, remove the retaining bolt, and withdraw the sensor.
3. Lightly oil the new O‑ring, seat the new sensor flush, and tighten the bolt to the Lexus spec from the repair manual (do not over‑torque).
4. Route the loom as per factory clips, reconnect, refit covers, clear codes and warm the engine through.

Genuine or high‑quality OEM‑equivalent sensors are recommended, cheap copies can give flaky signals and intermittent faults. No special relearn is usually required on these engines—the ECM adapts on its own—but verifying stable idle, hot and cold, is good practice. For owners across Australia and New Zealand, any workshop with Toyota/Lexus scan gear will be at home diagnosing and replacing the CKP on an IS 250, IS 350 or IS 300h.

Popular questions

Where is the crank angle sensor on a 2014 Lexus IS?
It’s mounted to the engine block where it can read the crankshaft’s reluctor wheel, typically accessed from underneath after removing the lower splash shields. The wiring plugs into the engine harness close by.

Exact placement varies slightly between the V6 and the hybrid’s four‑cylinder, so following the Lexus repair manual diagram for the specific engine code is best.

What are the signs of a failing crank angle sensor on an IS 250/IS 350?
Hard starting or no‑start, sudden stalling when hot, rough running, or the MIL on with codes like P0335. On a scan tool you may see an erratic or missing cranking RPM signal. Always inspect the connector and wiring before condemning the sensor.

Does the IS 300h hybrid also have a crank angle sensor?
Yes. Even though it’s a hybrid, the petrol engine still needs a CKP to synchronise fuel and spark when the engine starts and stops. The principle’s the same, but part numbers and exact mounting differ from the V6 models.