HEXA

ENGINE 179 11. ACCELERATOR PEDAL SENSOR This sensor is secured to the accelerator pedal in- side it contains an axially-located shaft connected to two potentiometers: a main one and one safety one. A coil spring on the shaft ensures the correct amount of resistance to pressure while a second spring ensures return following release. The redundant signal reading makes it possible to continuously monitor the plausibility of the readings in order to guarantee complete safety whilst driving even if there is a failure. The accelerator pedal position is converted into an electrical voltage signal and sent to the EMS ECU by the potentiometer connected to the pedal. The accelerator pedal position signal is processed to- gether with the information relating to the engine rpm to produce the desired torque and engine speed. CONNECTOR DETAILS PIN OUT DETAILS PIN NO DESCRIPTION 1 Acc pedal Sensor 2 supply 2 Acc pedal Sensor 1 supply 3 Acc pedal Sensor 1 return 4 Acc pedal Sensor 1 signal 5 Acc pedal Sensor 2 return 6 Acc pedal Sensor 2 signal REMOVAL 1. Disconnect the accelerator pedal electrical con- nector (1) from the accelerator pedal module. 2. Loosen and remove the 4 mounting nuts (1) and remove the accelerator pedal module.