184001928 - E2021 BRAKE LIGHTS - DESCRIPTION
Description
The brake lights are located at the rear in the side lights and in the central third brake light and consist of 5 separate bulbs.These are operated whenever the brake pedal is pressed, by means of a switch on the pedal itself.the switch fitted on the pedal assembly consists of two contacts which supply two signals: the first which is the ''N.A.'' type recognizes the position of the brake pedal when it differs from the rest position, i.e. pedal pressed; the second, which is the ''N.C.'' type, recognizes the brake pedal in the rest position. |
The correct operation of the side lights is controlled by the brake lights ''check'' function: the following are checked:
- 0pen circuit (bulb missing or wiring broken)
- short circuit to earth (bulb short circuit or wiring short circuit to earth)
- short circuit to Vbatt (wiring short circuit to Vbatt)
the centre third brake light is operated directly by the switch on the pedal and is not subjected to a check. |