Parts for your 2013 Toyota Mark x-Crank angle sensor

2013 Toyota Mark X crank angle sensor (crankshaft position sensor)

Yes, the 2013 Toyota Mark X uses a crank angle sensor—Toyota labels it the Crankshaft Position Sensor (CKP). This is documented in the Toyota Repair Manual for the GRX130/133 series under the SFI system, and it’s listed in the Toyota Electronic Parts Catalog for both the 4GR‑FSE 2.5L and 2GR‑FSE 3.5L V6 engines. Toyota diagnostics also define DTCs like P0335/P0336 for CKP signal faults on these engines. So, the crank angle sensor is very much relevant and fitted to this vehicle.

The sensor’s job is to track the crankshaft’s exact angle and speed, giving the ECU the timing reference for spark and fuel injection. On the D‑4S V6s in the Mark X, it also anchors the ECU’s control of variable valve timing, so if the signal drops out, the engine can be hard to start, misfire, or stall—and in many cases won’t start at all.

It’s a solid-state, maintenance‑free part, but age, heat, oil contamination, or wiring damage can trip it up. Owners might notice:

• Long cranking, intermittent stalling, or rough idle
• Flat spots on acceleration and reduced fuel economy
• Check engine light with codes like P0335, P0336, or P0339

During regular servicing, a few simple checks help keep things sweet:

• Inspect the CKP connector and loom for chafing, oil saturation, or corrosion—fixing a dodgy plug can save replacing a good sensor.
• Keep engine oil leaks sorted, oil wicking into the connector can skew the signal.
• If the battery’s been weak or replaced, clear any stored codes and confirm the CKP signal is stable on a scan tool.

When replacement is needed, an OE or high‑quality aftermarket sensor is the smart move. The CKP mounts to the engine block and reads a toothed reluctor on the crank. Basic replacement guidance:

1. Disconnect the battery and let the engine cool.
2. Unplug the sensor, remove the single retaining bolt, and carefully withdraw the sensor—don’t nick the O‑ring seat.
3. Lightly oil the new O‑ring, install the sensor squarely, and tighten the bolt to factory spec.
4. Clear codes, start the engine, and road‑test to confirm clean data and no warning lamp.

No routine replacement interval is specified, many last well past 150,000 km. If symptoms crop up, rule out wiring first, then replace the sensor. For the Mark X, there’s no special programming—just fit, clear codes, and verify.

Popular questions about the 2013 Toyota Mark X crank angle sensor

Does the 2013 Mark X actually have a crank angle sensor?
Yes. Both the 4GR‑FSE and 2GR‑FSE V6 engines use a CKP sensor (often called a crank angle sensor). This is outlined in the Toyota GRX130/133 Repair Manual (SFI section) and reflected in diagnostic codes such as P0335 for CKP circuit faults. It’s an essential input for spark, fuel, and VVT control.

Where is the crank angle sensor located on a Mark X V6?
It’s mounted to the engine block where it can read a toothed reluctor on the crankshaft. Access is typically from the engine bay or underneath depending on tools and hoist access. Exact orientation can vary, so a workshop manual or experienced technician helps to pinpoint it quickly.

Can it be driven with a failing crank angle sensor?
Not recommended. A weak or intermittent CKP signal can cause stalling and no‑start situations. If the car still runs, it may be erratic and unsafe. It’s best to diagnose promptly, check the loom and connector, and replace the sensor if confirmed faulty.