Transmission Position Sensor/Switch: Description and Operation

1996 Volkswagen Jetta (1H2) L4-2.0L (ABA)SECTION Description and Operation

Multifunction Switch:





Multifunction Switch F125

is located on the gearbox housing is operated by the selector lever and has the following functions:

The automatic transmission selector lever position is monitored by the ECM control unit. When the selector lever is in a position other than park or neutral, the ECM control unit changes the output signal to the idle stabilizer valve to compensate for the additional load placed on the engine.

^ Transmitting the selector lever position to the Digimat control unit

^ Switching on the reversing lights

^ Blocking the starter when a driving range is engaged

^ Providing information about the switching on and off of the cruise control system
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.