HomeElectrical, Charging and Starting > SensorsStandard Ignition BSC99 Battery Current Sensor
Part #: BSC99

Standard Ignition BSC99 Battery Current Sensor

⚙️ 9 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, 3 and 6
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Overview of Standard Ignition Battery Current Sensor BSC99

The Standard Ignition Battery Current Sensor BSC99 is designed for precise monitoring of battery current in select Mazda vehicles. Engineered with a female connector and two male blade terminals, this sensor ensures reliable electrical performance for Mazda 3 and Mazda 6 models.

  • Connector Gender: Female
  • Connector Quantity: 1
  • Terminal Gender: Male
  • Terminal Quantity: 2
  • Terminal Type: Blade

Technical Details and Compatibility

This battery current sensor features a single female connector and two male blade terminals, providing a secure and efficient electrical connection. The blade terminal type is commonly used for its ease of installation and durability under automotive conditions. Specifically compatible with Mazda 3 and Mazda 6 models, the BSC99 sensor integrates seamlessly with the vehicle’s charging and starting system to monitor battery current accurately.

Function and Application

The Standard Ignition BSC99 sensor is used to detect and relay battery current information to the vehicle’s electrical control unit. This data is critical for managing charging system performance and ensuring proper battery function.

  • Helps diagnose battery drain issues
  • Monitors charging system efficiency
  • Supports accurate battery state of charge readings
  • Prevents electrical system faults related to current flow
  • Assists in maintaining optimal vehicle starting performance

Installation Notes and Tips

When installing the BSC99 battery current sensor, ensure the female connector is securely attached to the corresponding harness. The two male blade terminals should be firmly connected to their mating terminals to avoid loose connections that could affect sensor readings. It is recommended to disconnect the battery before installation to prevent electrical shorts. Verify compatibility with your specific Mazda 3 or Mazda 6 model year prior to installation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications. The BSC99 battery current sensor undergoes rigorous testing to ensure durability and reliable performance in automotive electrical systems. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in material and workmanship under normal use.

BrandStandard Ignition
Part NumberBSC99
Connector GenderFemale
Connector ShapeOval
Terminal GenderMale
Terminal TypeBlade

This part fits 9 vehicles. Search below:

YearMakeModelPositionNotes
2018Mazda3N/A
2017Mazda3N/A
2017Mazda6N/A
2016Mazda3N/A
2016Mazda6N/A
2015Mazda3N/A
2015Mazda6N/A
2014Mazda3N/A
2014Mazda6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

BCSA33CTB101PE05188A1SBC101

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.