Removing
1. We install the car on a viewing hole or overpass (see "Vehicle preparation for maintenance and repair").
2. Using a slotted screwdriver, loosen the knurled nut, unscrew it and disconnect the speedometer drive cable.
3. Having previously loosened the plastic clamp A, which tightens the wiring harnesses, press the spring clips and disconnect the wiring harness block from the vehicle speed sensor block.
4. Open end wrench by 22 mm (or hand) unscrew and remove the sensor from the speedometer drive.
You can verify that the sensor is faulty by replacing it with a known good one.
Installation
The sensor is installed in the reverse order.