AutoCodes – Nissan – P1551 Nissan

P1551 Nissan 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 Nissan 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 33,240

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 29, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1551 Nissan 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 Nissan - Battery Current Sensor Circuit Low Input - AutoCodes.com — P1551 Nissan Code - Battery Current Sensor Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P1551 Nissan?

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 Nissan?

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 Nissan 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 Nissan code?

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

Need Help with the Code?

Get the P1551 Nissan code diagnosed by a professional: Find a repair shop in your area

Information for Specific Nissan Models

P1551 2008 Nissan Altima Sedan — Battery Current Sensor Circuit Low Input
P1551 2009 Nissan Altima Sedan — Battery Current Sensor Circuit Low Input
P1551 2010 Nissan Altima Sedan — Battery Current Sensor Circuit Low Input
P1551 2011 Nissan Altima Sedan — Battery Current Sensor Circuit Low Input
P1551 2012 Nissan Altima Sedan — Battery Current Sensor Circuit Low Input
P1551 2005 Nissan Pathfinder — Battery Current Sensor Circuit Low Input
P1551 2006 Nissan Pathfinder — Battery Current Sensor Circuit Low Input
P1551 2007 Nissan Pathfinder — Battery Current Sensor Circuit Low Input
P1551 2008 Nissan Pathfinder — Battery Current Sensor Circuit Low Input
P1551 2009 Nissan Pathfinder — Battery Current Sensor Circuit Low Input
P1551 2010 Nissan Pathfinder — Battery Current Sensor Circuit Low Input
P1551 2011 Nissan Pathfinder — Battery Current Sensor Circuit Low Input
P1551 2012 Nissan Pathfinder — Battery Current Sensor Circuit Low Input

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 Nissan Code

1. What are common symptoms of OBDII code P1551 in a Nissan related to the Battery Current Sensor Circuit Low Input?

- Common symptoms include a illuminated check engine light, reduced fuel efficiency, and potential issues with the vehicle's charging system.

2. What are the potential causes of OBDII code P1551 in a Nissan?

- The code P1551 in a Nissan can be triggered by a faulty battery current sensor, damaged wiring or connectors in the sensor circuit, or issues with the vehicle's battery or charging system.

3. How can I diagnose the Battery Current Sensor Circuit Low Input issue in my Nissan?

- Diagnosing the P1551 code typically involves using a diagnostic scanner to retrieve the fault codes, checking the battery current sensor for proper operation, and inspecting the wiring and connectors for any damage or looseness.

4. Can a DIY enthusiast repair the Battery Current Sensor Circuit Low Input issue in a Nissan?

- While diagnosing the issue can be done by a DIY enthusiast with the right tools, repairing the problem may require specialized knowledge and tools. It is recommended to consult a professional mechanic for proper repair.

5. What are some tips for repairing the Battery Current Sensor Circuit Low Input issue in a Nissan?

- Tips for repairing the P1551 code in a Nissan include checking and cleaning the battery terminals, inspecting the battery current sensor for damage, and ensuring all wiring and connectors related to the sensor are in good condition.

6. Is it safe to continue driving my Nissan with the OBDII code P1551 present?

- It is not recommended to continue driving your Nissan with the P1551 code present, as it can lead to potential issues with the vehicle's charging system and overall performance.

7. How much does it typically cost to repair the Battery Current Sensor Circuit Low Input problem in a Nissan?

- The cost of repairing the P1551 code in a Nissan can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can a bad battery cause the OBDII code P1551 to appear in a Nissan?

- Yes, a bad or failing battery can sometimes trigger the P1551 code in a Nissan due to disruptions in the vehicle's charging system.

9. Will disconnecting and reconnecting the battery reset the OBDII code P1551 in a Nissan?

- Disconnecting and reconnecting the battery may temporarily clear the code, but it is not a permanent solution. Proper diagnosis and repair of the underlying issue are necessary to prevent the code from reappearing.

10. How long does it typically take to repair the Battery Current Sensor Circuit Low Input issue in a Nissan?

- The repair time for the P1551 code in a Nissan can vary depending on the complexity of the issue and the availability of parts. In general, it may take a few hours to a full day to diagnose and repair the problem.