Mercedes-Benz S-class W220 (1998-2005) engine electronics/ chassis relay Wiring diagrams

AIR PUMP (TOP FRONT SIDE OF ENGINE) AIR PUMP RELAY BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE COOLING FANS SYSTEM ENGINE ELECTRONICS/ CHASSIS RELAY FUEL PUMP RELAY FUSE 29 FUSE 30 FUSE 31 FUSE 49 FUSE 52 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN OR START NCA WIRE PURGE CONTROL VALVE (LEFT REAR OF ENGINE COMPT) REAR FUSE/RELAY MODULE (UNDER RIGHT REAR SEAT) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT FUSE/ RELAY MODULE (RIGHT REAR OF ENGINE COMPT) RIGHT FRONT SAM CONTROL MODULE THROTTLE VALVE ACTUATOR (REAR TOP CENTER OF ENGINE) VIO WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/BLU WIRE

AIR PUMP (TOP FRONT SIDE OF ENGINE) AIR PUMP RELAY BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE COOLING FANS SYSTEM ENGINE ELECTRONICS/ CHASSIS RELAY FUEL PUMP RELAY FUSE 29 FUSE 30 FUSE 31 FUSE 49 FUSE 52 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN OR START NCA WIRE PURGE CONTROL VALVE (LEFT REAR OF ENGINE COMPT) REAR FUSE/RELAY MODULE (UNDER RIGHT REAR SEAT) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT FUSE/ RELAY MODULE (RIGHT REAR OF ENGINE COMPT) RIGHT FRONT SAM CONTROL MODULE THROTTLE VALVE ACTUATOR (REAR TOP CENTER OF ENGINE) VIO WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/BLU WIRE