Engine-CodesToyota – P0335 2009 Toyota Prius

P0335 2009 Toyota Prius Code - Crankshaft Position Sensor 'A' Circuit

Quick Answer

The P0335 diagnostic trouble code (DTC) for a 2009 Toyota Prius indicates a problem with the Crankshaft Position Sensor 'A' Circuit. Common causes include Faulty crankshaft position sensor, Damaged wiring or connectors, Corrosion or poor connection in the sensor circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0335 2009 Toyota Prius indicates Crankshaft Position Sensor 'A' Circuit .
Common causes
Common causes include Faulty crankshaft position sensor, Damaged wiring or connectors, Corrosion or poor connection in the sensor circuit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P0335 2009 Toyota Prius Description

The P0335 diagnostic trouble code (DTC) for a 2009 Toyota Prius indicates a problem with the Crankshaft Position Sensor 'A' Circuit. The crankshaft position sensor is a vital component of the engine management system, as it monitors the position and rotational speed of the crankshaft. This information is crucial for the engine control module (ECM) to accurately determine ignition timing and fuel injection timing.

OBDII Code P0335 2009 Toyota Prius - Crankshaft Position Sensor 'A' Circuit
P0335 2009 Toyota Prius Code - Crankshaft Position Sensor 'A' Circuit

Common Causes of P0335 2009 Toyota Prius

  1. Faulty crankshaft position sensor
  2. Damaged wiring or connectors
  3. Corrosion or poor connection in the sensor circuit
  4. ECM software issues
  5. Engine vibrations causing sensor displacement

Symptoms of P0335 2009 Toyota Prius

  1. Engine misfires
  2. Difficulty starting the engine
  3. Stalling while driving
  4. Decreased fuel efficiency
  5. Rough idling

How to Fix P0335 2009 Toyota Prius

  1. Diagnose the issue by using a scan tool to confirm the P0335 code and test the crankshaft position sensor's functionality.
  2. Inspect the wiring and connectors for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Replace the crankshaft position sensor if it is found to be faulty or malfunctioning.
  4. Clear the DTC from the ECM memory and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to identify any underlying ECM or engine issues.

Cost to Fix P0335 2009 Toyota Prius

The cost of repairing a P0335 code on a 2009 Toyota Prius can vary depending on the specific cause of the issue. On average, replacing a crankshaft position sensor can range from $100 to $300, including parts and labor. Additional costs may apply if wiring repairs or ECM diagnostics are needed. It is recommended to consult with a qualified mechanic or auto repair shop to obtain an accurate estimate based on the individual circumstances of the vehicle. Keep in mind that labor rates can vary between different locations and service providers.

Tech Notes for P0335 2009 Toyota Prius

Sometimes and in some models, low battery voltage or a weak starter can trigger a Crankshaft Position Sensor code. Before replacing any parts, recharge or replaced battery.

When is the Code Detected?

The crankshaft position sensor (POS) signal is not detected by the Electronic Control Module (ECM) during the first few seconds of engine cranking

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0335 2009 Toyota Prius Code

1. What are the common symptoms of OBDII code P0335 in a 2009 Toyota Prius?

- Common symptoms include engine stalling, rough idling, difficulty starting the vehicle, and a decrease in fuel efficiency.

2. What does the OBDII code P0335 indicate in a 2009 Toyota Prius?

- The code P0335 indicates a problem with the crankshaft position sensor 'A' circuit in the vehicle.

3. What are the possible causes of OBDII code P0335 in a 2009 Toyota Prius?

- Possible causes include a faulty crankshaft position sensor, damaged sensor wiring, poor electrical connections, or a problem with the sensor's reluctor ring.

4. How can I diagnose the issue causing OBDII code P0335 in my 2009 Toyota Prius?

- Diagnosing the issue involves checking the crankshaft position sensor's wiring, connections, and sensor itself for any signs of damage or malfunction.

5. Can I drive my 2009 Toyota Prius with OBDII code P0335?

- It is not recommended to drive the vehicle with this code as it can lead to further engine damage and potential safety hazards.

6. How can I repair OBDII code P0335 in my 2009 Toyota Prius?

- The repair typically involves replacing the faulty crankshaft position sensor and ensuring all wiring and connections are in good condition.

7. Is it possible to reset OBDII code P0335 in a 2009 Toyota Prius without fixing the issue?

- While you can clear the code with an OBDII scanner, it is not recommended as the underlying issue causing the code will persist and may lead to more significant problems.

8. How much does it cost to repair OBDII code P0335 in a 2009 Toyota Prius?

- The cost of repair can vary depending on the location, labor rates, and whether you choose to do the repair yourself or take it to a mechanic. Expect costs for parts and labor.

9. Are there any preventative measures to avoid OBDII code P0335 in a 2009 Toyota Prius?

- Regular maintenance, including checking the condition of sensors and wiring, can help prevent issues like OBDII code P0335 from occurring.

10. Can a DIY enthusiast replace the crankshaft position sensor to fix OBDII code P0335 in a 2009 Toyota Prius?

- While it is possible for a DIY enthusiast to replace the sensor, it is recommended to have some experience with automotive repairs and follow the manufacturer's guidelines carefully.

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