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P0345 2003 Nissan Altima Sedan Code - Camshaft Position Sensor Circuit Bank 2

Quick Answer

The P0345 diagnostic trouble code (DTC) indicates a problem with the Camshaft Position Sensor Circuit Bank 2 in a 2003 Nissan Altima Sedan. Common causes include Failed camshaft position sensor, Wiring harness issues, Poor connections or loose wiring. 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
P0345 2003 Nissan Altima Sedan indicates Camshaft Position Sensor Circuit Bank 2.
Common causes
Common causes include Failed camshaft position sensor, Wiring harness issues, Poor connections or loose wiring.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0345 2003 Nissan Altima Sedan Description

The P0345 diagnostic trouble code (DTC) indicates a problem with the Camshaft Position Sensor Circuit Bank 2 in a 2003 Nissan Altima Sedan. The camshaft position sensor plays a crucial role in the engine's operation by monitoring the position of the camshaft and sending signals to the engine control module (ECM) to determine ignition timing and fuel injection. Bank 2 typically refers to the side of the engine that does not contain cylinder #1.

OBDII Code P0345 2003 Nissan Altima Sedan - Camshaft Position Sensor Circuit Bank 2
P0345 2003 Nissan Altima Sedan Code - Camshaft Position Sensor Circuit Bank 2

Common Causes of P0345 2003 Nissan Altima Sedan

  1. Failed camshaft position sensor
  2. Wiring harness issues
  3. Poor connections or loose wiring
  4. Damaged sensor
  5. Exposure to extreme temperatures or contaminants

Symptoms of P0345 2003 Nissan Altima Sedan

  1. Engine misfires
  2. Rough idling or stalling
  3. Decreased fuel efficiency
  4. Difficulty starting the engine
  5. Illuminated check engine light

How to Fix P0345 2003 Nissan Altima Sedan

  1. Diagnose the issue by connecting an OBD-II scanner to retrieve the fault code and confirm the problem.
  2. Inspect the camshaft position sensor and its wiring for any visible damage or wear.
  3. Replace the camshaft position sensor if it is faulty, ensuring proper installation and connection.
  4. Clear the DTC from the ECM memory and perform a test drive to verify the repair.
  5. If the issue persists, further diagnostic testing may be required to identify any underlying electrical issues or wiring problems.

Cost to Fix P0345 2003 Nissan Altima Sedan

The typical repair costs for addressing a P0345 code in a 2003 Nissan Altima Sedan can vary depending on the extent of the issue and the cost of parts and labor. On average, the cost of replacing a camshaft position sensor ranges from $100 to $250, including parts and labor. Additional diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more affordable prices.

What does this mean?

Tech Notes for P0345 2003 Nissan Altima Sedan

There is a factory service bulletin for the 2003 Nissan Altima:

2003 Nissan Altima Factory Service Bulletin OBDII Code P0345

When is the Code Detected?

The camshaft position sensor signal is not detected by the Engine 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 P0345 2003 Nissan Altima Sedan Code

1. What does the OBDII code P0345 mean on a 2003 Nissan Altima?

P0345 indicates a malfunction in the Camshaft Position Sensor Circuit for Bank 2, meaning the engine control module (ECM) cannot properly interpret the position of the camshaft on that side of the engine.

2. What are the common symptoms of code P0345 in a 2003 Nissan Altima?

Symptoms may include difficulty starting the engine, poor acceleration, engine misfires, rough idling, reduced fuel efficiency, and the check engine light turning on.

3. What are the possible causes of a P0345 code in a 2003 Nissan Altima?

Possible causes include a faulty camshaft position sensor, damaged wiring or connectors, a failed reluctor ring on the camshaft, or issues with the ECM.

4. Which bank is Bank 2 on a 2003 Nissan Altima?

Bank 2 refers to the side of the engine opposite Bank 1, which contains cylinder 1. For the Altima's V6 engine, Bank 2 is typically on the driver's side.

5. How can I diagnose the P0345 code on my 2003 Nissan Altima?

Start by inspecting the camshaft position sensor and its wiring for damage. Use a multimeter to check for proper voltage and continuity, and scan the ECM for related codes to rule out other issues.

6. Can I drive my 2003 Nissan Altima with a P0345 code?

While the car may still run, driving with this code is not recommended as it can lead to poor engine performance, increased fuel consumption, and potential damage to other components.

7. How do I fix the P0345 code on a 2003 Nissan Altima?

Repairs may include replacing the camshaft position sensor, repairing damaged wiring or connectors, cleaning or replacing the reluctor ring, or reprogramming or replacing the ECM if necessary.

8. How much does it cost to fix a P0345 code on a 2003 Nissan Altima?

Replacing the camshaft position sensor typically costs $100–$250, including parts and labor. Additional repairs like wiring or ECM replacement can increase the cost.

9. Can a bad crankshaft position sensor cause a P0345 code?

Yes, a faulty crankshaft position sensor can sometimes contribute to a P0345 code, as the ECM relies on input from both the crankshaft and camshaft sensors to determine engine timing.

10. Will clearing the P0345 code fix the issue in my 2003 Nissan Altima?

Clearing the code will temporarily turn off the check engine light, but the issue will likely return unless the underlying problem is resolved.

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