Engine-CodesInfiniti – P1551 Infiniti

P1551 Infiniti Code - Battery Current Sensor Circuit Low Input

Quick Answer

The P1551 Infiniti code indicates that there is a low input signal from the battery current sensor circuit. Common causes include Faulty battery current sensor, Corrosion or damage to the sensor wiring, Issues with the battery itself. 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 Infiniti indicates Battery Current Sensor Circuit Low Input.
Common causes
Common causes include Faulty battery current sensor, Corrosion or damage to the sensor wiring, Issues with the battery itself.
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 Aug 19, 2024
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Code P1551 Infiniti Description

The P1551 Infiniti code indicates that there is a low input signal from the battery current sensor circuit. The battery current sensor is responsible for monitoring the flow of current in and out of the vehicle's battery. This information is crucial for the vehicle's electrical system to operate efficiently, as it helps regulate the charging and discharging of the battery. When the sensor detects a low input signal, it can lead to issues with the vehicle's electrical components, potentially causing poor performance, starting problems, and even damage to the battery or other electrical systems if left unresolved.

OBDII Code P1551 Infiniti - Battery Current Sensor Circuit Low Input
P1551 Infiniti Code - Battery Current Sensor Circuit Low Input

Common Causes of P1551 Infiniti

  1. Faulty battery current sensor
  2. Corrosion or damage to the sensor wiring
  3. Issues with the battery itself
  4. Electrical system malfunctions
  5. Poor connections or loose wiring

Symptoms of P1551 Infiniti

  1. Check engine light illuminated on the dashboard
  2. Difficulty starting the vehicle
  3. Dimming or flickering headlights
  4. Electrical issues such as power windows not working properly
  5. Loss of power steering assistance

How to Fix P1551 Infiniti

  1. Diagnose the issue using a diagnostic tool to pinpoint the exact cause of the low input signal from the battery current sensor circuit.
  2. Inspect the sensor and wiring for any damage or corrosion, and replace as needed.
  3. Test the battery to ensure it is functioning properly and replace if necessary.
  4. Check the electrical system for any other faults or malfunctions that may be contributing to the issue.
  5. Clear the error code and test the vehicle to ensure the problem has been resolved.

Cost to Fix P1551 Infiniti

The cost of repairing a P1551 Infiniti code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the cost of parts for this repair could range from $50 to $200, while labor costs could be between $100 and $300. It's important to note that these are rough estimates, and the actual cost could be higher or lower based on the factors mentioned earlier. It's recommended to consult with a trusted auto repair shop for a more accurate cost 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 Infiniti Code

1. What are the common symptoms associated with OBDII code P1551 in an Infiniti?

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

2. What does the OBDII code P1551 in an Infiniti indicate?

- The code P1551 indicates a low input signal from the battery current sensor circuit in the vehicle.

3. What are the possible causes of OBDII code P1551 in an Infiniti?

- Possible causes include a faulty battery current sensor, damaged wiring or connectors in the sensor circuit, or issues with the vehicle's battery or charging system.

4. How can I diagnose the root cause of OBDII code P1551 in my Infiniti?

- To diagnose the issue, it is recommended to perform a thorough inspection of the battery current sensor, check the wiring and connectors for any damage, and test the vehicle's battery and charging system.

5. Can I continue driving my Infiniti with OBDII code P1551 present?

- It is not recommended to drive the vehicle with the code P1551 present, as it can lead to potential issues with the battery and charging system, affecting the overall performance of the vehicle.

6. How can I repair OBDII code P1551 in my Infiniti?

- Repairing the code P1551 involves replacing the faulty battery current sensor, repairing or replacing damaged wiring or connectors, and ensuring the proper functioning of the vehicle's battery and charging system.

7. Will resetting the OBDII code P1551 make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the code.

8. Are there any DIY tips for addressing OBDII code P1551 in an Infiniti?

- While some basic troubleshooting steps can be taken, such as checking for loose connections or damaged wiring, it is recommended to seek professional help for a thorough diagnosis and repair of the issue.

9. How much does it typically cost to repair OBDII code P1551 in an Infiniti?

- The cost of repairing OBDII code P1551 can vary depending on the extent of the issue and the specific repairs needed. It is advisable to consult a mechanic for a proper diagnosis and cost estimate.

10. Can OBDII code P1551 cause further damage to my Infiniti if left unresolved?

- Leaving OBDII code P1551 unresolved can potentially cause further damage to the vehicle's battery and charging system, leading to more serious issues over time. It is best to address the code promptly to prevent any additional damage.

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