BMW K 1100 LT/RS - Manual (Page 110)

12.24
Indicator lamp lights at half or full brightness
with engine running.
no
Check regulator.
Is regulator defective? yes
Renew regulator.
no
Check supply line.
Does supply line have break/short circuit? yes Repair break;
renew cable/connection elements.
no
Check carbon brushes.
Are carbon brushes defective? yes
Renew carbon brushes.
no
Check rotor winding.
Is rotor winding defective? yes
Replace rotor.
no
Check exiter current circuit.
Is exiter current circuit broken? yes Repair break;
renew cable/connection elements.
no
Check diode/diode carrier.
Is diode/diode carrier defective? yes
Replace diode/diode carrier.
no
Check cable D +/61.
Has cable short to ground? yes Repair short-circuit;
if necessary renew cable.