Engine-CodesNissan – P1551 2010 Nissan Pathfinder

P1551 2010 Nissan Pathfinder Code - Battery Current Sensor Circuit Low Input

Quick Answer

The P1551 diagnostic trouble code (DTC) for a 2010 Nissan Pathfinder refers to the Battery Current Sensor Circuit Low Input. Common causes include Faulty Battery Current Sensor: The most common cause of the P1551 code is a malfunctioning battery current sensor that is sending a low voltage signal to the PCM, Wiring Issues: Damaged or corroded wiring connections between the battery current sensor and the PCM can disrupt the signal and trigger the code, Battery Issues: A weak or failing battery can also cause the sensor to detect a low input signal, leading to the P1551 code. 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
P1551 2010 Nissan Pathfinder indicates Battery Current Sensor Circuit Low Input.
Common causes
Common causes include Faulty Battery Current Sensor: The most common cause of the P1551 code is a malfunctioning battery current sensor that is sending a low voltage signal to the PCM, Wiring Issues: Damaged or corroded wiring connections between the battery current sensor and the PCM can disrupt the signal and trigger the code, Battery Issues: A weak or failing battery can also cause the sensor to detect a low input signal, leading to the P1551 code.
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 14, 2024
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Code P1551 2010 Nissan Pathfinder Description

The P1551 diagnostic trouble code (DTC) for a 2010 Nissan Pathfinder refers to the Battery Current Sensor Circuit Low Input. This code indicates that the powertrain control module (PCM) has detected a lower than expected voltage signal from the battery current sensor. The battery current sensor is a crucial component that monitors the electrical current flowing in and out of the vehicle's battery. It plays a vital role in regulating the charging system and ensuring the battery's health and performance.

OBDII Code P1551 2010 Nissan Pathfinder - Battery Current Sensor Circuit Low Input
P1551 2010 Nissan Pathfinder Code - Battery Current Sensor Circuit Low Input

Common Causes of P1551 2010 Nissan Pathfinder

  1. Faulty Battery Current Sensor: The most common cause of the P1551 code is a malfunctioning battery current sensor that is sending a low voltage signal to the PCM.
  2. Wiring Issues: Damaged or corroded wiring connections between the battery current sensor and the PCM can disrupt the signal and trigger the code.
  3. Battery Issues: A weak or failing battery can also cause the sensor to detect a low input signal, leading to the P1551 code.
  4. PCM Malfunction: In rare cases, a malfunctioning PCM can misinterpret the sensor's signals and trigger the code.
  5. Alternator Problems: Issues with the alternator, such as overcharging or undercharging the battery, can also contribute to the P1551 code.

Symptoms of P1551 2010 Nissan Pathfinder

  1. Check Engine Light: The most common symptom associated with the P1551 code is the illumination of the check engine light on the vehicle's dashboard.
  2. Battery Warning Light: The battery warning light may also illuminate, indicating a potential issue with the charging system.
  3. Poor Fuel Efficiency: A malfunctioning battery current sensor can lead to improper charging of the battery, resulting in poor fuel efficiency.
  4. Difficulty Starting: The vehicle may experience difficulty starting or require multiple attempts to start the engine.
  5. Electrical Issues: Other electrical components in the vehicle may behave erratically or malfunction due to improper battery charging.

How to Fix P1551 2010 Nissan Pathfinder

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the DTC and perform a thorough inspection of the battery current sensor, wiring, and related components.
  2. Test the Battery Current Sensor: Check the sensor's voltage output using a multimeter to determine if it is functioning correctly.
  3. Inspect Wiring Connections: Check for any damaged or corroded wiring connections and repair or replace them as needed.
  4. Replace the Battery Current Sensor: If the sensor is found to be faulty, replace it with a new one following the manufacturer's guidelines.
  5. Clear the Code: After completing the repair, clear the DTC using the diagnostic scanner to reset the check engine light and monitor the system for any recurring issues.

Cost to Fix P1551 2010 Nissan Pathfinder

The typical repair costs for addressing the P1551 code on a 2010 Nissan Pathfinder can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the cost of replacing a battery current sensor can range from $100 to $200, while the cost of labor can range from $80 to $150 per hour. Additional costs may be incurred if wiring repairs or other components need to be replaced. It is advisable to consult with a professional mechanic or auto repair shop for a more accurate cost estimate based on the specific diagnosis and repair requirements for your vehicle. Keep in mind that labor rates can vary based on location, vehicle make and model, and other factors, so it's essential to research local rates for a more precise estimate.

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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 P1551 2010 Nissan Pathfinder Code

What does the OBDII code P1551 mean on a 2010 Nissan Pathfinder?

1. The P1551 code indicates a "Battery Current Sensor Circuit Low Input," meaning the vehicle's battery current sensor is detecting a voltage or signal lower than expected. 2.

What are the symptoms of code P1551 in a 2010 Nissan Pathfinder?

Common symptoms include the check engine light turning on, poor battery performance, charging system warnings, or erratic electrical behavior. 3.

What causes the P1551 code to trigger?

The most common causes are a faulty battery current sensor, damaged wiring or connectors in the sensor circuit, or a failing alternator. 4.

Can a weak or failing battery cause code P1551?

Yes, a weak or failing battery can lead to low voltage readings, which may trigger the P1551 code. 5.

How do you diagnose the P1551 code on a 2010 Nissan Pathfinder?

Diagnosis involves checking the battery current sensor, inspecting the wiring and connectors for damage or corrosion, and testing the battery and alternator for proper function. 6.

Can I drive my 2010 Nissan Pathfinder with a P1551 code?

While the vehicle may still be drivable, ignoring the P1551 code can lead to more serious electrical or charging system problems. It's best to address it promptly. 7.

How do you fix the P1551 code on a Nissan Pathfinder?

Repairs may include replacing the battery current sensor, repairing damaged wiring or connectors, or replacing a weak battery or failing alternator. 8.

Does the battery current sensor need to be calibrated after replacement?

Yes, in most cases, the battery current sensor must be calibrated using a scan tool to ensure proper operation after replacement. 9.

Can a blown fuse cause the P1551 code on a 2010 Nissan Pathfinder?

While rare, a blown fuse related to the charging system or battery circuit could potentially cause the P1551 code. 10.

How much does it cost to repair the P1551 code on a 2010 Nissan Pathfinder?

Repair costs vary but may range from $150 to $400, depending on whether you need to replace the battery current sensor, repair wiring, or address other issues.

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