The vehicle is equipped with a white reversing light located in the rear bumpers, on the right.It is activated each time reverse gear is engaged: this information is received via a switch located on the outside of the gear casing.The reversing light circuit is supplied by an ignition-operated relay and protected by a fuse in the engine compartment control unit.On versions with a robotized gearbox - JTD engine - there is no switch on the gearbox and the signal arrives from the gearbox control unit itself.The reverse engagement signal is also acquired by the engine control unit, sent via the CAN network to the Body Computer, which forwards the information to the parking etc. sensor control unit for automatic rear wiper operation See E3021 REAR WINDOW WASH/WIPE See E3090 PARKING SENSOR In the provision for aftermarket navigation system wiring, the information is sent directly via an appropriate line See E4090 NAVIGATOR