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6HP19 6HP21 wave box gear switch sensor for BMW 6HP19 6HP21

NB Number : 102411
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BMW

  • OE

    6HP19 /6HP21

  • Purpose

    for replace/repair

  • Place of Origin

    Guangdong, China

  • Application

    AutomoPartstive
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12Months Warranty
$49
$51.45
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This 6HP19 6HP21 wave box gear switch sensor is a crucial electronic component designed for BMW vehicles equipped with either the 6HP19 or 6HP21 automatic transmission. This product is a "wave box gear switch sensor," also commonly referred to as a transmission range sensor, gear position sensor, or neutral safety switch. This sensor is located within the transmission's valve body or mechatronic unit (often referred to as the "wave box" in some contexts). Its primary function is to accurately detect and report the selected gear position (Park, Reverse, Neutral, Drive, Manual modes) to the Transmission Control Unit (TCU) or Engine Control Unit (ECU). This information is essential for proper transmission operation, including gear engagement, shift logic, starting the vehicle, and safety interlocks. Over time, gear switch sensors can fail due to wear, contamination from transmission fluid, or electrical degradation. A faulty gear switch sensor can send incorrect or intermittent signals, leading to a range of transmission problems including incorrect gear indication on the dashboard, inability to start the vehicle, failure to engage certain gears, erratic shifting, "limp mode," and transmission error codes.1 Replacing a worn or failing gear switch sensor with this new, high-quality unit can restore accurate gear position detection, ensuring proper TCU/ECU control, and maintaining the smooth and reliable performance of your BMW's 6HP19 or 6HP21 automatic transmission. This sensor is designed as a direct replacement component for original parts during transmission repair or maintenance, and is marketed as a High-Quality part with a 1-year warranty.

  • Car Model:

    for BMW

  • OE:

    6HP19 /6HP21

  • Purpose:

    for replace/repair

  • Place of Origin:

    Guangdong, China

  • Application:

    AutomoPartstive

  • Service:

    professional service

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