DTC P0335 Crankshaft Position Sensor A Circuit Malfunction

In the world of automotive diagnostics, understanding On-Board Diagnostic Trouble Codes (DTCs) is paramount. Today, we’re focusing on DTC P0335, specifically the Crankshaft Position Sensor A Circuit Malfunction issue. In this comprehensive guide, we will decode the meaning of P0335, explore its symptoms, investigate potential causes, discuss systematic diagnosis, and provide effective solutions for fixing this trouble code. Let’s dive right in.

1. What does P0335 code mean?

DTC P0335 is a diagnostic trouble code that indicates a malfunction in the Crankshaft Position Sensor A Circuit. The crankshaft position sensor plays a critical role in monitoring the engine’s position and rotational speed. When it detects a circuit malfunction, the Engine Control Module (ECM) triggers the P0335 code, signifying a problem with the sensor or its circuit.

2. What are the causes of DTC P0335?

Understanding the potential causes of DTC P0335 is fundamental to effective troubleshooting. These causes may include:

  • A faulty or damaged crankshaft position sensor.
  • Wiring issues such as shorts, breaks, or frayed wires in the sensor’s circuit.
  • Poor electrical connections or corroded connectors.
  • ECM problems, although this is less common.

Identifying the root cause is the first step in resolving this problem.

3. What are the symptoms of DTC P0335?

Recognizing the symptoms associated with DTC P0335 is crucial for early detection. Common signs of this issue include:

  • Engine misfires or hesitation during acceleration.
  • Difficulty starting the engine or extended cranking time.
  • A stalling engine, especially at low speeds.
  • An illuminated check engine light (CEL) on the dashboard.

If you experience any of these symptoms, addressing the problem promptly is essential to prevent further damage.

4. How to diagnose DTC P0335?

Accurate diagnosis of DTC P0335 requires a systematic approach. Here’s a step-by-step guide:

If everything appears normal so far, consider conducting further tests to ensure the sensor’s functionality.

5. How to fix DTC P0335 problem?

Once you’ve identified the issue causing DTC P0335, it’s time to address it effectively. Here are some steps to consider:

  • Replace the crankshaft position sensor if it is faulty or damaged.
  • Repair or replace any damaged wiring or connectors in the Crankshaft Position Sensor A Circuit.
  • Ensure proper electrical connections and clean corroded connectors.
  • Clear the trouble code using your OBD-II scanner after completing repairs.

Clearing the trouble code is crucial to reset the check engine light and confirm that the problem has been successfully resolved.


In this comprehensive guide, we’ve delved into DTC P0335, the Crankshaft Position Sensor A Circuit Malfunction code. Understanding its meaning, symptoms, potential causes, systematic diagnosis, and the importance of clearing the trouble code empowers you to address this issue confidently. Whether you’re an automotive enthusiast or a professional mechanic, resolving these problems with precision and expertise not only restores your vehicle’s performance but also enhances your automotive knowledge. Safe and smooth travels!