Possible causes of fault
- 'Short circuit to B+' Continuous lighting of direction indicator bulb(s) can only be diagnosed when direction indicator is switched off.
- 'Short circuit to ground' Failure of direction indicator light bulb(s) can only be diagnosed when direction indicator light 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 direction indicator 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 direction indicator is switched on.
- 'Bulb(s)) faulty' In the event of partial failure, doubling of LED flashing frequency in instrument cluster.