Possible causes of fault
- 'Short circuit to B+' Continuous lighting of dipped beam headlight bulb can only be diagnosed when dipped beam headlight is switched off.
- 'Short circuit to ground' Failure of dipped beam headlight bulb can only be diagnosed when dipped beam headlight is switched on, fuse may be faulty
- 'Open circuit/short circuit to B+' Continuous lighting of bulb(s) in the event of a 'short circuit to B+', can only be diagnosed when dipped beam is switched on.
- 'Open circuit/short circuit to B+' No lighting of bulb(s) in the event of a 'disconnection', can only be diagnosed when dipped beam is switched on.
- 'Vehicle electrical system control module faulty'