What does this code mean?
The crankshaft converts piston movement into rotation. Its sensor helps determine engine position and speed. P0335 indicates a problem with that signal circuit; it does not prove the crankshaft itself is broken.
Locate the reported problem
A no-start or stall may accompany the code, but the circuit, supply and signal target must be considered before replacing the sensor.
Read it with the other codes
P0340 concerns a camshaft signal. Seeing both requires checking the signal relationship and shared electrical context, not assuming two sensors failed.
Possible causes to investigate
These are possibilities, not a diagnosis or a ranked list of failed parts.
- A missing or unreliable sensor signal, connector or wiring fault.
- A power, signal-target or mechanical condition that needs testing with the circuit.
What to do first
- Note whether the engine cranks without starting, stalls warm or restarts after cooling. Save all related codes.
- Do not repeatedly road-test a vehicle that stalls. Arrange safe recovery when reliable operation is in doubt.
What the workshop can check
The workshop can check signal presence and quality, circuit supply and the relationship between crank and cam signals. A circuit code alone does not establish that the sensor or timing chain is the failed part.
A useful question to ask
Is a valid crank signal reaching the controller during the actual fault?
Your vehicle changes the next step
Year, make, model, engine and the complete code list matter. Cylinder layout, test conditions and repair procedures can differ. Use service information for the exact vehicle; a generic code does not establish an exact failed part.
Can I keep driving?
This page cannot decide whether your car is safe to drive. A flashing engine light, severe shaking, overheating, strong fuel smell or major power loss calls for prompt attention. Stop safely when needed, follow your handbook and seek assistance rather than continuing a test drive.
Terms in this guide
These words appear in the explanation. Select an underlined term in the text to reach its definition.
- Crankshaft
- A shaft converting piston movement into rotation. Crankshaft and camshaft sensors help the engine control system know their positions.
- Cylinder and piston
- A cylinder is the chamber where fuel burns. A piston moves inside it and receives the force from combustion. Cylinder numbering depends on the engine.
- Sensor and signal
- A sensor measures something such as pressure or temperature. Its signal carries that information electrically to the car computer; a wrong reading does not always mean the measured component is faulty.
- Circuit, supply and ground
- A circuit includes the wiring and connections carrying electricity. Supply powers a component; ground is its electrical return. A fault in any of these can change a reading.
- Control unit
- A car computer that receives measurements and controls the engine or another system. It may also be called a module, ECU, ECM or PCM.
- Camshaft
- A shaft with shaped lobes that help open engine valves at the right time. Intake valves let air in; exhaust valves let gases out.
- Valve timing and advance
- Coordination between engine movement and valve opening. Advanced means it occurs earlier than expected, not that a part has moved physically forward.
Sources and scope
Definitions and general OBD context are cross-checked against the references below. Manufacturer documents describe specific vehicles and systems; their procedures and thresholds are not instructions for every make. This is educational guidance, not a vehicle-specific repair procedure.