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Related to Sensors for 944S 2.5L 16V 1987-88
171927145A/1
Product Information
Product Information
Automatic Transmission Contact Sensor.
Restore reliable automatic transmission operation with this OE Match Automatic Transmission Contact Sensor, manufactured as a direct replacement. Produced to OE-style specifications, this high-quality sensor is designed to detect and communicate the selector lever position to the vehicle's transmission control system, ensuring accurate gear selection and dependable automatic transmission performance.

Fits:
  • Porsche 924 2.0L 1976-79
  • Porsche 924 2.0L 1980-85
  • Porsche 924S 2.5L 1986-87
  • Porsche 924S 2.5L 1988
  • Porsche 944 2.5L 8V 1982-87
  • Porsche 944 2.7L 8V 1988-89
  • Porsche 944S 2.5L 16V 1987-88
  • Porsche 944S2 3.0L 16V 1989-91 
 
Diagram Ref No 2

The contact sensor is a vital component within the automatic transmission selector mechanism, allowing the vehicle's electrical systems to correctly identify the selected gear position. Over time, the original sensor can wear, become contaminated, or develop electrical faults, resulting in incorrect gear indication, intermittent starting problems, or erratic transmission operation. This OE Match replacement restores reliable communication between the selector mechanism and transmission control system, making it ideal for maintenance, repairs, and restoration projects.  

What This Product Does:
  • Detects the position of the automatic transmission selector.
  • Communicates gear selection to the transmission control system.
  • Supports accurate and reliable transmission operation.
  • Helps ensure the engine starts only in the correct selector positions.
  • Maintains accurate gear position indication.
  • Restores dependable communication between the selector and transmission.
  • Provides an OE-style fit and reliable electrical performance.

Symptoms Of Wear Or Failure:
  • Incorrect gear position displayed.
  • Difficulty starting the vehicle in Park or Neutral.
  • Intermittent no-start condition.
  • Erratic or inconsistent automatic transmission operation.
  • Gear selector position not recognised correctly.
  • Transmission-related electrical fault codes.
  • Corroded or damaged sensor connections.
  • Age-related deterioration of the original component.

Why Replacement Matters:

  • The automatic transmission contact sensor is an essential component that allows the transmission control system to accurately recognise the selected gear. A worn or faulty sensor can cause incorrect gear indication, unreliable starting, and inconsistent transmission performance, potentially affecting both safety and drivability.
  • Replacing a defective contact sensor restores accurate gear position detection, dependable communication with the transmission control system, and smooth automatic transmission operation. Manufactured to OE-style specifications, this OE Match replacement provides the correct fit, reliable performance, and long-lasting durability, making it an excellent choice for routine maintenance and classic Porsche restoration projects.



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171927145A

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