Standard Ignition BSC4 Battery Current Sensor

Battery Current Sensor for Toyota and Lexus

Standard Ignition BSC4 is a battery current sensor for select Toyota Prius, Toyota Highlander, Toyota HS250h, and Lexus LS600h applications. It uses a female rectangular plug-in connector with three male blade terminals for direct electrical connection in the charging and starting system.

Key Features

• Battery current sensor for charging system monitoring
• Female, rectangular plug-in connector
• 3 male blade terminals for secure interface
• Direct-fit electrical component for select Toyota and Lexus vehicles
• Standard Ignition BSC4 replacement part number

Detailed Description

The Standard Ignition BSC4 battery current sensor is built for vehicles that rely on accurate battery current feedback to manage charging performance. It is listed for 2004-2009 Toyota Prius with white housing, 2006-2007 Toyota Highlander with plastic housing, 2010-2012 Lexus HS250h, and 2013-2016 Lexus LS600h. This part number, BSC4, is also a direct reference point when matching the correct sensor for Toyota Prius and Lexus battery management repairs.

This part cross-references Standard Ignition (e.g., BSC4) for the same application.

What It Helps Address

• Battery current sensor fault codes
• Charging system communication errors
• Incorrect battery current readings
• Warning lights related to battery management
• Intermittent charging performance concerns

Installation Notes and Tips

Verify connector style, terminal layout, and housing type before installation. Confirm the vehicle application by year, make, model, and the listed housing note: white housing for Toyota Prius and plastic housing for Toyota Highlander. Match the sensor to the original electrical connector and inspect the surrounding charging system components for damage or corrosion during service.

Quality Assurance

Standard Ignition supplies replacement electrical components for service applications, and BSC4 is cataloged with defined connector and terminal specifications to support accurate part matching. Confirm fitment against the vehicle listing before installation.