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

Acc pedal Sensor 2 supply

Acc pedal Sensor 1 supply

Acc pedal Sensor 1 return

Acc pedal Sensor 1 signal

Acc pedal Sensor 2 return

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.