Diagnosing Code P0335: Causes, Symptoms and Power System Solutions

Introduction

The P0335 error code refers to a problem with the crankshaft position sensor. This is a vital component in the engine management system because it provides the ECU (engine computer) with information about the crankshaft position, which is necessary for proper ignition and fuel injection. In this article, we will discuss in detail the causes, symptoms, and possible solutions related to the P0335 error.

Technical description and decoding of error P0335

What does code P0335 mean?

The P0335 code means that the engine computer has detected a low or missing signal from the crankshaft position sensor. This can cause the engine to not start or run properly.

Why does code P0335 occur?

Code P0335 can be caused by a variety of problems, including:

• Crankshaft position sensor failure
• Loose or damaged electrical connections
• Sensor power supply problems
• Crankshaft gear damage
• ECU defects

Symptoms of error P0335

Symptoms associated with error P0335 may include:

• Check Engine Light (MIL): The Check Engine light on the dashboard illuminates.
• Engine Starting Problems: The engine may have difficulty starting or may not start at all.
• Engine Running Rough: The engine may run rough, causing vibrations and jerking.
• Lack of Power: Loss of power while driving.

Causes of error P0335

Code P0335 may be caused by:

1. Damaged crankshaft position sensor: The sensor may be damaged or worn, affecting its operation.
2. Electrical leaks: Loose or damaged connections can lead to no signal.
3. Crankshaft gear damage: If the gear is damaged, the sensor may not function properly.
4. ECU problems: Damage to the engine computer can lead to misinterpretation of signals.

How to Clear or Reset Error Code P0335

1. Reading fault codes: Use an OBD-II scanner to read all fault codes stored in the ECU memory.
2. Crankshaft Position Sensor Inspection: Check the condition of the sensor and its wiring.
3. Power Test: Check if the sensor is powered properly.
4. Code Reset: After making repairs, clear the fault code and test drive the vehicle to make sure the problem is solved.

Diagnostics and troubleshooting

1. Read Codes: Use an OBD-II scanner to identify any trouble codes.
2. Sensor Inspection: Inspect the crankshaft position sensor and its wiring for damage.
3. Testing the Power Supply: Use a multimeter to check the sensor’s power supply voltage.
4. Gear Test: Check the condition of the crankshaft gear.

Costs of repairing error P0335

The cost of repairing a P0335 error can vary depending on the source of the problem. Here are the approximate costs:

• Crankshaft position sensor replacement: USD 200–800
• Electrical diagnostics: USD 100–400
• ECU replacement: USD  1,000–3,000 (if necessary)

How to avoid problems with code P0335 in the future?

To minimize the risk of error P0335, it is worth following a few rules:

1. Regular inspections: Check the condition of sensors and wiring regularly.
2. Replacing damaged parts: Replace damaged components immediately.
3. Respond quickly to problems: If you notice any symptoms of engine problems, have your vehicle diagnosed immediately.

FAQ (Frequently Asked Questions)

1. What are the symptoms of code P0335?
Symptoms include an illuminated check engine light, difficulty starting the engine, and rough running engine.

2. What are the most common causes of the P0335 error?
Common causes include a faulty crankshaft position sensor, leaks in the electrical system, and ECU problems.

3. Can I fix the P0335 error myself?
Yes, you can check the sensor and wiring yourself, but for more serious problems, it is worth consulting a professional.

4. What tools are needed to diagnose the P0335 error?
An OBD-II scanner, a multimeter to measure voltage, and basic mechanical tools will be useful to diagnose the P0335 error.

Final Summary

The P0335 code indicates problems with the crankshaft position sensor, which can lead to serious engine problems. Understanding this error and regular maintenance of the ignition system are key to keeping your vehicle in good condition. If you are having difficulty diagnosing or repairing it, it is a good idea to consult a professional mechanic to avoid further vehicle problems.