Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN1996JETTA (1H2) L4-2.0L (ABA)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTRANSMISSION POSITION SENSOR/SWITCHDESCRIPTION AND OPERATION
1996 Volkswagen Jetta (1H2) L4-2.0L (ABA)
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.