Mercedes-Benz S-class W221 (2005-2009) right backrest lateral support cushion piezo valve (w/ dynamic seat) Wiring diagrams

1 2 3 FLAT WIRE FLAT WIRE FLAT WIRE UB 31 DATA 1 2 CAN B L CAN B H 12 11 16 15 CAN-F L CAN-F H CAN-B L CAN-B H 16 15 CAN-B L CAN-B H 26 25 CAN-B L CAN-B H BLK WIRE BLK/GRN WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CENTRAL GATEWAY CONTROL MODULE CENTRAL LUMBAR CUSHION PIEZO VALVE CENTRAL LUMBAR CUSHION PRESSURE SENSOR COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE LEFT BACKREST LATERAL SUPPORT CUSHION PIEZO VALVE LEFT BACKREST LATERAL SUPPORT CUSHION PRESSURE SENSOR LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LEFT FRONT SEAT BACKREST CUSHION VALVE GROUP LEFT FRONT SEAT OPERATION SWITCH GROUP LOWER LUMBAR CUSHION PIEZO VALVE LOWER LUMBAR CUSHION PRESSURE SENSOR MEMORY 1, 2, 3 SWITCH MEMORY STORE BUTTON SWITCH NCA WIRE ORG/GRN WIRE ORG/WHT WIRE RED/WHT WIRE RIGHT BACKREST LATERAL SUPPORT CUSHION PIEZO VALVE (W/ DYNAMIC SEAT) RIGHT BACKREST LATERAL SUPPORT CUSHION PRESSURE SENSOR (W/ DYNAMIC SEAT) SHOULDER SHOULDER CUSHION CUSHION PRESSURE PIEZO SENSOR VALVE UPPER LUMBAR CUSHION PIEZO VALVE UPPER LUMBAR CUSHION PRESSURE SENSOR WHT WIRE WHT/GRN WIRE YEL WIRE YEL/WHT WIRE

4 2 3 1 CAN-B H CAN-B L BLK WIRE BLK/GRN WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CENTRAL LUMBAR CUSHION PIEZO VALVE CENTRAL LUMBAR CUSHION PRESSURE SENSOR COMPUTER DATA LINES SYSTEM GRN/BLU WIRE LEFT BACKREST LATERAL SUPPORT CUSHION PIEZO VALVE LEFT BACKREST LATERAL SUPPORT CUSHION PRESSURE SENSOR LOWER LUMBAR CUSHION PRESSURE SENSOR LOWER SHOULDER LUMBAR CUSHION CUSHION PRESSURE PIEZO SENSOR VALVE LUMBAR PUMP (W/ LUMBAR SUPPORT) NCA WIRE ORG/GRN WIRE ORG/WHT WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT BACKREST LATERAL SUPPORT CUSHION PIEZO VALVE (W/ DYNAMIC SEAT) RIGHT BACKREST LATERAL SUPPORT CUSHION PRESSURE SENSOR (W/ DYNAMIC SEAT) RIGHT FRONT SEAT BACKREST CUSHION VALVE GROUP SHOULDER CUSHION PIEZO VALVE UPPER LUMBAR CUSHION PIEZO VALVE UPPER LUMBAR CUSHION PRESSURE SENSOR W/ LUMBAR SUPPORT W/ MULTICONTOUR SEAT, DYNAMIC SEAT WHT WIRE WHT/GRN WIRE YEL WIRE