Control Module/Gear-Shift Position Sensor
The transmission control module and the gear-shift position sensor form one unit. This unit is mounted on the top of the transmission housing, on the gear shift linkage rod. The control module connector is directly connected to the transmission.
The gear-shift position sensor provides the transmission control module with information about the gear selected and whether back-up gear is selected so that the back-up lamps can be lit if required. The gear-shift position sensor contains a permanent magnet and a linear Hall sensor. The gear-shift position sensor generates a signal voltage between 0 and 5 V. This signal voltage corresponds to the currently selected gear selector lever position.
There are diagnostics for the gear-shift position sensor.
Voltage level for the different gears
≈ 0.65 V
≈ 1.64 V
≈ 2.12 V
≈ 2.49 V