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.
Automatic engine start-stop, zero gear sensor
On vehicles with manual transmission, the zero gear sensor is fitted on the transmission case. The zero gear sensor is a PLCD sensor, which means the sensor detects a linear change in the location (excursion) without contact on the basis of position changes with regard to the magnetic state. The gearshift operation shifts the selector rod (4) and thus the magnet in the transmission. The PLCD sensor enables the engine management system to detect the position of the gear selector lever. The following illustrations show the schema of the assembly and sectional views of the sensor attached to the transmission:
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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.