Standard Ignition BSC166 Intelligent Battery Sensor (IBS)

Intelligent Battery Sensor Overview

Standard Ignition BSC166 is an intelligent battery sensor for select Toyota charging system applications. It uses a round housing with stud-and-blade connections and a 3-terminal, 3-connector layout for direct electrical integration.

Compatible With Toyota battery monitoring systems, this sensor is listed for the positive side on the 2024 Toyota Grand Highlander and for additional Toyota applications including Tacoma, Corolla Cross, Highlander, Sequoia, Sienna, and Tundra. The BSC166 part number is also useful when matching an OE-style replacement by reference.

Key Features

• Intelligent battery sensor for charging system monitoring
• Round connector shape with stud-and-blade terminals
• Female and male connector genders for electrical interface matching
• 3 connectors and 3 terminals for application-specific fitment
• Standard Ignition BSC166 for select Toyota vehicles

Detailed Description

The Standard Ignition BSC166 is built for vehicles that rely on battery current and state monitoring as part of the charging system. Its stud-and-blade design and round connector profile support a direct electrical connection, while the sensor-only contents keep the focus on replacing the failed monitoring component itself. This part number, BSC166, is associated with Toyota applications across multiple model lines, including the Toyota Corolla Cross, Highlander, Sienna, and Tundra.

For buyers searching by fitment, this intelligent battery sensor matches specific Toyota charging system applications rather than a universal setup. The BSC166 designation and listed interchange numbers help confirm the correct replacement when servicing battery monitoring faults on the Toyota Grand Highlander and related models.

What It Is Used For

• Battery state monitoring faults
• Charging system warning lights
• Incorrect battery current sensing
• Electrical communication issues at the sensor connection
• Replacement of a damaged or failed battery sensor

Installation Notes and Tips

Verify connector style, terminal layout, and vehicle fitment before installation. Match the BSC166 part number to the original sensor and confirm the Toyota application listed for your model year and position notes. Because this is an electrical sensor, clean connection points and inspect the harness for corrosion or damage during replacement.

Quality Assurance

Standard Ignition supplies electrical components for service replacement applications, and BSC166 is cataloged with OE-style interchange references for fit confirmation. Cross-reference part numbers include 28850F0090 and SBC166 for the same application.