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Engine-Codes – Generic – P1552

P1552 Code - Battery Current Sensor Circuit High Input

Quick Answer

The P1552 diagnostic trouble code (DTC) indicates that there is a high input in the battery current sensor circuit. Common causes include Faulty Battery Current Sensor: A malfunctioning battery current sensor can cause the high input in the circuit, Wiring Issues: Damaged or corroded wiring in the battery current sensor circuit can lead to a high input, Poor Electrical Connections: Loose or poor electrical connections can disrupt the current flow in the circuit. 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
P1552 indicates Battery Current Sensor Circuit High Input.
Common causes
Common causes include Faulty Battery Current Sensor: A malfunctioning battery current sensor can cause the high input in the circuit, Wiring Issues: Damaged or corroded wiring in the battery current sensor circuit can lead to a high input, Poor Electrical Connections: Loose or poor electrical connections can disrupt the current flow in the circuit.
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 08, 2024
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Code P1552 Description

The P1552 diagnostic trouble code (DTC) indicates that there is a high input in the battery current sensor circuit. The battery current sensor is a crucial component in the vehicle's electrical system that monitors the flow of current to and from the battery. When the sensor detects a high input, it means that there is an abnormal amount of current passing through the circuit. This can lead to various issues with the vehicle's electrical system and overall performance.

OBDII Code P1552 - Battery Current Sensor Circuit High Input
P1552 Code - Battery Current Sensor Circuit High Input

Common Causes of P1552

  1. Faulty Battery Current Sensor: A malfunctioning battery current sensor can cause the high input in the circuit.
  2. Wiring Issues: Damaged or corroded wiring in the battery current sensor circuit can lead to a high input.
  3. Poor Electrical Connections: Loose or poor electrical connections can disrupt the current flow in the circuit.
  4. Charging System Problems: Issues with the vehicle's alternator or voltage regulator can affect the battery current sensor circuit.

Symptoms of P1552

  1. Check Engine Light: The most common symptom associated with the P1552 code is the illumination of the check engine light on the vehicle's dashboard.
  2. Battery Issues: The battery may be overcharging or not charging properly, leading to issues with starting the vehicle.
  3. Electrical Problems: The vehicle may experience electrical issues, such as dimming lights, flickering dashboard lights, or malfunctioning accessories.
  4. Reduced Fuel Efficiency: The engine's performance and fuel efficiency may be affected due to incorrect readings from the battery current sensor.
  5. Stalling or Rough Idling: The vehicle may stall or experience rough idling due to irregular current flow in the electrical system.

How to Fix P1552

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the DTC and pinpoint the exact cause of the high input in the battery current sensor circuit.
  2. Inspect Wiring and Connections: Thoroughly inspect the wiring and connections in the battery current sensor circuit for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test Battery Current Sensor: Test the battery current sensor for proper operation and replace if found to be faulty.
  4. Check Charging System: Inspect the vehicle's alternator and voltage regulator to ensure they are functioning correctly. Repair or replace any components that are causing the issue.
  5. Clear DTC and Test Drive: Clear the DTC from the vehicle's computer system, then test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1552

The typical repair costs for resolving a P1552 code can vary depending on the specific cause of the issue and the vehicle make and model. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. It is important to note that the diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check local rates for a more precise estimate. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more affordable rates.

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Code P1552 Information for Specific Makes

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.

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