AutoCodes – Nissan – P1551 2008 Nissan Pathfinder

P1551 2008 Nissan Pathfinder Code - Battery Current Sensor Circuit Low Input

Quick Answer

The power generation voltage variable control enables fuel consumption to be decreased by reducing the engine load which is caused by the power generation of the generator. Common causes include Faulty Battery Current Sensor, Battery Current Sensor harness is open or shorted, Battery Current Sensor circuit poor electrical connection. 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 2008 Nissan Pathfinder indicates Battery Current Sensor Circuit Low Input.
Common causes
Common causes include Faulty Battery Current Sensor, Battery Current Sensor harness is open or shorted, Battery Current Sensor circuit poor electrical connection.
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.
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Code Popularity 3,156
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 22, 2024
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Code P1551 2008 Nissan Pathfinder Description

The power generation voltage variable control enables fuel consumption to be decreased by reducing the engine load which is caused by the power generation of the generator. The battery current sensor is installed to the battery cable at the negative terminal. The sensor measures the charging/discharging current of the battery. Based on the sensor signal, Engine Control Module (ECM) judges whether or not the power generation voltage variable control is performed. When performing the power generation voltage variable control, ECM calculates the target power generation voltage based on the sensor signal. And ECM sends the calculated value as the power generation command value to IPDM E/R.
OBDII Code P1551 2008 Nissan Pathfinder - Battery Current Sensor Circuit Low Input - AutoCodes.com
P1551 2008 Nissan Pathfinder Code - Battery Current Sensor Circuit Low Input

What are the Possible Causes of the DTC P1551 2008 Nissan Pathfinder?

  • Faulty Battery Current Sensor
  • Battery Current Sensor harness is open or shorted
  • Battery Current Sensor circuit poor electrical connection

How to Fix the DTC P1551 2008 Nissan Pathfinder?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1551 2008 Nissan Pathfinder code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1551 2008 Nissan Pathfinder code?

Need more information on how to fix the P1551 2008 Nissan Pathfinder code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 2008 Nissan Pathfinder Code

1. What does the OBDII code P1551 mean on a 2008 Nissan Pathfinder?

P1551 indicates a "Battery Current Sensor Circuit Low Input," meaning the vehicle's battery current sensor is detecting input voltage lower than expected.

2. What are the symptoms of the P1551 code in a 2008 Nissan Pathfinder?

Symptoms may include the check engine light turning on, poor battery charging, reduced fuel efficiency, or issues with electrical components.

3. What causes the P1551 code to appear on a 2008 Nissan Pathfinder?

Common causes include a faulty battery current sensor, damaged wiring or connectors, a weak battery, or issues with the alternator.

4. How can I diagnose the P1551 code on my 2008 Nissan Pathfinder?

Start by inspecting the battery current sensor, checking for loose or damaged wiring, and testing the battery and alternator for proper operation.

5. Can a bad alternator trigger the P1551 code in a 2008 Nissan Pathfinder?

Yes, a failing alternator can cause irregular voltage readings, potentially triggering the P1551 code.

6. Is it safe to drive with the P1551 code on a 2008 Nissan Pathfinder?

While it may be safe to drive for short distances, ignoring this code can lead to battery drain, electrical malfunctions, or the vehicle stalling unexpectedly.

7. How do I fix the P1551 code on a 2008 Nissan Pathfinder?

Repairs may involve replacing the battery current sensor, repairing or replacing damaged wiring, or addressing battery or alternator issues.

8. Where is the battery current sensor located on a 2008 Nissan Pathfinder?

The battery current sensor is typically located near the negative terminal of the battery or integrated into the battery cable.

9. How much does it cost to fix the P1551 code on a 2008 Nissan Pathfinder?

Repair costs vary but may range from $100 to $300, depending on whether the battery current sensor or other components need replacement.

10. Can a low battery cause the P1551 code on a 2008 Nissan Pathfinder?

Yes, a weak or discharged battery can result in low voltage readings, triggering the P1551 code.

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