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amberfrnc 2/20/2011
1994 Saturn SW1 Base 4Cyl1.9L - Transmissions & Drivetrains
where is auto.tran. speed sensor?Is the tran. filter external
1994 saturn sw1
1 Answer
  • Nissan Technical Advisor
    Perhaps you are referring to vehicle speed sensor. A wheel speed sensor or vehicle speed sensor (VSS) is a type of tachometer. It is a sender device used for reading the speed of a vehicle's wheel rotation. It usually consists of a toothed ring and pickup and usually mounted on top of the differential. The VSS input reading sent to PCM for shifting the gears properly.

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