P0345 Code: Tackling Camshaft Position Sensor Faults Problems

Have you ever encountered the dreaded Check Engine Light with code P0345? You’re in the right place!

In this guide, we’ll explore everything you need to know about this code, including its meaning, symptoms, and causes. But that’s not all – we’ll also provide you with the knowledge and expertise to diagnose and fix the problem like a pro.

So, let’s get started!

P0345 Code: Quick Overview

But first, let’s take a look at the P0345 code overview!

Definition: Camshaft Position Sensor A Circuit Malfunction (Bank 2)
Severity: High
DIY Skill Level: Advanced
Continue To Drive?: No
Estimated Repair Cost: $50 – $200

What Does the P0345 Code Mean?

The P0345 diagnostic trouble code (DTC) indicates a camshaft position sensor A circuit malfunction in Bank 2. This code is commonly found in Nissan, Ford, Infiniti, and Lexus car models.

In modern vehicles, the engine’s camshaft plays a crucial role in the precise timing of the intake and exhaust valves. The camshaft position sensor, located near the camshaft, monitors the position and speed of the camshaft. This sensor sends the recorded information to the engine control module (ECM), which uses it to determine the optimal fuel injection and ignition timing.
When the camshaft position sensor A circuit in Bank 2 malfunctions, the ECM doesn’t receive the expected signals from the sensor. As a result, the code P0345 will be set.

camshaft position sensor
When the camshaft position sensor fails, the ECM doesn’t receive the expected signals from the sensor and triggers the P0345 code. (Image credit: cruzetalk.com)

This code is often associated with other DTCs like P0340 (Camshaft Position Sensor A Circuit Malfunction Bank 1), P0344 (Camshaft Position Sensor Circuit Intermittent), and P0349 (Camshaft Position Sensor A Circuit Intermittent Bank 2). These codes may share similar causes and symptoms, making it important to diagnose and address them collectively for a comprehensive repair.

Read more: P0340 – Camshaft Position Sensor “A” Circuit

How Serious is the P0345 Code?

The P0345 code is considered a high severity level as it can lead to significant issues, including potential no-start situations that may leave you stranded. While it may not cause immediate breakdown or safety hazards, it is crucial to address the issue promptly to avoid potential engine performance problems and further complications. 

Continuing to drive with the P0345 code can be risky as it may lead to serious issues such as stalling, misfires, or poor acceleration. To ensure safe driving conditions and prevent potential engine damage, it is strongly recommended to diagnose and repair this problem as soon as possible.

Symptoms of the P0345 Code

You can observe various symptoms when the P0345 trouble code appears, including:

  • Check Engine Light, traction control, and/or “Check VSC” light illuminated
  • Engine misfires or runs roughly
  • Decreased engine power and performance
  • Hesitation or stumbling during acceleration
  • Engine stalling or difficulty starting
  • Poor fuel efficiency

What Causes The P0345 Code?

Possible causes of P0345 may include:

  • Faulty/Contamination camshaft position sensor
  • Wiring or connector issues in the sensor circuit
  • Sensor alignment or synchronization problems
  • Timing belt/chain problems affecting the camshaft’s position
  • Bad crankshaft position sensor
  • Electrical problems such as a short or open circuit
  • ECM or PCM software issues

How To Diagnose And Fix The Code P0345

Now, it’s time to explore the diagnosis and repair process. In this section, we’ll guide you through the necessary tools and parts, outline a step-by-step procedure, and discuss the level of DIY repairs you can undertake. By following this guide, you can save money on repairs and better understand your vehicle’s problem.

Essential Tools and Parts

To diagnose and repair the P0345 trouble code, you may need the following tools and parts:

  • OBD-II scanner or code reader
  • Multimeter
  • Basic hand tools (screwdrivers, wrenches, sockets)
  • Camshaft position sensor 
  • Crankshaft position sensor 
  • Wiring connectors and terminals 
  • Electrical tape or heat shrink tubing for wire repairs
  • MAF sensor cleaner spray

Step-by-Step Procedure

  1. Connect the OBD-II scanner or code reader to the vehicle’s diagnostic port to retrieve the stored trouble code.
  2. Inspect the wiring and connectors related to the camshaft position sensor in Bank 2 for any visible damage or loose connections.
  3. Check the camshaft position sensor for any dirt or corrosion. Clean it if needed.
  4. If no apparent issues are found, use a multimeter to test the resistance and voltage of the sensor and its circuit. Compare the readings obtained to the manufacturer’s specifications.
  5. If the sensor is faulty, replace it with a new one, ensuring proper alignment and secure connection.
  6. Test the crankshaft position sensor voltage if the camshaft sensor works properly. If the reading is different from the manufacturer’s specifications, replace it.
  7. Perform a PCM test if the above steps cannot help you fix the P0345 code.
  8. Clear the trouble code and test drive to ensure the issue has been resolved.
Watch this video to learn how to test the camshaft position sensor before deciding to replace it.


  • Before replacing the camshaft position sensor, keep the engine cool to avoid potential burns.
  • Take caution when working with electrical connections and wiring to prevent short circuits or damage.
  • Refer to the vehicle’s service manual or online resources for specific instructions and component locations.

DIY Repair Level and Estimated Costs

The repair level for diagnosing and resolving the P0345 code can vary depending on an individual’s mechanical expertise. While some DIY enthusiasts with experience in automotive repairs may successfully tackle this task, it is recommended to seek professional assistance if uncertain.

Here is a table providing a general overview of the estimated costs:

Repair TaskEstimated Cost Range
Camshaft position sensor repair/replacement$50 – $250
Wiring connectors and terminals$50 – $100
Professional Diagnostic Fee$50 – $150

Please note that these costs are approximate and can vary significantly. It’s always recommended to consult with a trusted mechanic or automotive service center to obtain accurate cost estimates based on your specific vehicle and location. Their expertise and guidance can ensure a proper diagnosis and cost-effective resolution of the P0345 code.

Final Thoughts

You’re now gaining a comprehensive understanding of the P0345 trouble code and its implications for your vehicle’s performance! With this knowledge, you can now tackle the challenges of dealing with a camshaft position sensor A circuit malfunction in Bank 2.

Remember, timely diagnosis and repair are crucial to maintaining your vehicle’s optimal performance and avoiding further complications. If you’re confident in your DIY skills, go ahead and address the issue using the step-by-step guide provided. However, if you’re unsure or encounter difficulties, don’t hesitate to seek professional assistance from a trusted mechanic.

Additionally, take advantage of our OBD Code List Generator to find specific code lists, or use our OBD code lookup tool for instant reference.

We hope this guide has been helpful to you. Feel free to share your thoughts or ask questions in the comments below. Safe driving and happy repairing!


  1. Camshaft – Wikipedia
  2. Understanding Camshaft Position Sensor – studentlesson.com
  3. Variable Valve Timing (VVT) – austincc.edu

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