312000895 - E2021 BRAKE LIGHTS - DESCRIPTION
DESCRIPTION
The vehicle brake lights are located at the rear in the side light clusters and in the special central third brake light and they consist of 5 bulbs.They are operated each time the brake pedal is pressed via the special switch on the pedal.The switch fitted on the pedal unit consists of two contacts which supply two signals: the first is the N.O. type, which recognizes the position of the brake pedal if it is not in the rest postion, i.e. the pedal is pressed; the second is the N.C. type, which recognizes the position of the brake pedal in the rest position. |
- open circuit (bulb missing or wiring interrupted);
- closed circuit to earth (bulb s.c. or wiring s.c. to earth);
- short circuit to battery voltage (wiring short circuited to Vbatt).
The third brake light is not controlled by the check function. |