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Standard Ignition BSC128 Intelligent Battery Sensor (IBS)
| Brand | Standard Ignition BSC128 |
|---|---|
| Connector Gender | Female |
| Connector Quantity | 3 |
| Connector Shape | Rectangular |
| Connector Type | Socket |
| Contents | Sensor only |
| Notes | Bolt on |
| Terminal Gender | Male |
| Terminal Quantity | 38 |
| Terminal Type | Blade, pin |
| Fits | Lexus and Toyota · 23 vehicles |
Sensor-only design. Direct replacement service part for charging system monitoring.
Bolt-on mounting. Simplifies service with a secure, application-specific installation.
Multi-terminal connector. Uses a rectangular socket layout with blade and pin terminals.
Cross-references Standard Ignition BSC128, 8989233040 and BCSB10076 for the same application. See all 5.
Intelligent Battery Sensor Overview
Standard Ignition BSC128 is an intelligent battery sensor for charging system monitoring. It is a bolt-on sensor-only replacement with a female rectangular socket connector and male blade/pin terminals.
Compatible With Toyota and Lexus applications, this sensor supports battery current and system monitoring on vehicles that use an IBS-style design. The BSC128 part number is also referenced as 8989233040, BCSB10076, CTB128, and SBC128 for the same application.
Key Features
- Sensor-only design for direct replacement service
- Bolt-on mounting style
- 3-connector layout with rectangular socket connection
- 38-terminal blade and pin interface
- Standard Ignition BSC128 fitment for select Toyota and Lexus models
Detailed Description
The Standard Ignition BSC128 intelligent battery sensor is built for charging system applications where battery condition and electrical load monitoring are managed through an IBS-style sensor. It uses a female connector, three connector points, and a rectangular socket configuration with male blade and pin terminals. This makes it a practical replacement for vehicles that rely on sensor feedback to support charging control.
Fits 2018-2024 Toyota Camry, N/A. Fits 2019-2025 Toyota RAV4, N/A. Fits 2019-2020 Toyota Avalon, N/A. Fits 2019-2025 Lexus ES300h, N/A. Standard Ignition BSC128 is a fitment-specific replacement for these Toyota and Lexus applications.
What It Is Used For
- Replacing a failed battery current sensor
- Restoring charging system monitoring
- Addressing battery warning lights tied to sensor faults
- Correcting inaccurate battery state-of-charge readings
- Resolving electrical management issues caused by sensor failure
Installation Notes and Tips
Verify connector style, terminal layout, and vehicle fitment before installation. This sensor is listed as bolt-on and sensor only, so reuse of existing related components may be required depending on the application. Confirm the part number BSC128 against the original sensor before service.
Quality Assurance
Standard Ignition supplies electrical components for service replacement applications. The BSC128 part number cross-references 8989233040 and SBC128 for the same application.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2025 | Lexus | ES300h | — | — | — |
| 2025 | Toyota | RAV4 | — | — | — |
| 2024 | Lexus | ES300h | — | — | — |
| 2024 | Toyota | Camry | — | — | — |
| 2024 | Toyota | RAV4 | — | — | — |
| 2023 | Lexus | ES300h | — | — | — |
| 2023 | Toyota | Camry | — | — | — |
| 2023 | Toyota | RAV4 | — | — | — |
| 2022 | Lexus | ES300h | — | — | — |
| 2022 | Toyota | Camry | — | — | — |
| 2022 | Toyota | RAV4 | — | — | — |
| 2021 | Lexus | ES300h | — | — | — |
| 2021 | Toyota | Camry | — | — | — |
| 2021 | Toyota | RAV4 | — | — | — |
| 2020 | Lexus | ES300h | — | — | — |
| 2020 | Toyota | Avalon | 2.5L | L4 | — |
| 2020 | Toyota | Camry | — | — | — |
| 2020 | Toyota | RAV4 | — | — | — |
| 2019 | Lexus | ES300h | — | — | — |
| 2019 | Toyota | Avalon | 2.5L | L4 | — |
| 2019 | Toyota | Camry | — | — | — |
| 2019 | Toyota | RAV4 | — | — | — |
| 2018 | Toyota | Camry | — | — | — |
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