SYMBOLDESCRIPTIONC54K37 High Beam RelayC51K163 PCM Power RelayC69K33 Horn RelayC50K4 Fuel Pump RelayC53K36 Low Beam RelayC61V8 Starter Relay DiodeC52K22 Starter RelayC465K32 A/C Wide Open Throttle (WOT) RelayC2000K107 A/C Clutch RelayC432K45 Engine Cooling Fan RelayC431K5 Daytime Running Lamps (DRL) RelayC430K46 High Speed Engine Cooling Fan Relay BMW E28 1993 Main Fuse Panel/Board – Fuse Symbol Map