Parking Lights/Number Plate Lighting
The parking lamps (10/11-12, 10/44-45 and 10/51-52) and license plate lighting (10/3) lights when:
- the knob in the light switch module (LSM) (3/111) is in the low beam position
- the knob in the light switch module (LSM) is in the parking lamp position
- low beam is lit via the low beam automatic function (market dependent).
The central electronic module (CEM) (4/56) receives a request to turn on the lamps from the light switch module (LSM) via LIN communication.
The lamps are powered directly via individual outputs on the central electronic module (CEM).
To detect problems with the lamp faults, the central electronic module (CEM) reads the power consumption of each output.
The parking lights have a limp-home function and will work even if there is a fault in the CAN or an open-circuit in the serial communication between the light switch module (LSM) and the central electronic module (CEM). The parking lights will function when the ignition is in position II.
From structure week 2009 46-, the position lights are activated in addition to the hazard warning flashers when the central electronic module (CEM) receives a collision signal from the supplemental restraint system module (SRS).