POWER SEATS – BMW 428i 2014 – SYSTEM WIRING DIAGRAMS

POWER SEATS

Front Heated Seats Wiring Diagram, with Memory for BMW 428i 2014

List of elements for Front Heated Seats Wiring Diagram, with Memory for BMW 428i 2014:

16

• Computer data lines system
• Driver's seat backrest heating element
• Driver's seat cushion heating element
• Driver's seat module (under front of driver seat)
• Front passenger's seat module (under front passenger seat)
• Front power distribution box (right rear of engine compt)
• Fuse 30a
• Heating/air conditioning system (upper center of hvac unit)
• Hot w/ terminal 30b relay energized
• K-can bus sig
• Passenger's seat backrest heating element
• Passenger's seat cushion heating element
• X12 1b
• X14 1b
• Z10 3b (left footwell)
• Z10 7b (behind right rear passenger seat)

Front Heated Seats Wiring Diagram, without Memory for BMW 428i 2014

List of elements for Front Heated Seats Wiring Diagram, without Memory for BMW 428i 2014:

16

• Computer data lines system
• Driver's seat backrest heating element
• Driver's seat cushion heating element
• Driver's seat heating module
• Front passenger's seat heating module
• Front power distribution box (right rear of engine compt)
• Fuse 20a
• Heating/air conditioning system (upper center of hvac unit)
• Hot w/ terminal 30b relay energized
• K-can bus sig
• Passenger's seat backrest heating element
• Passenger's seat cushion heating element
• X12 1b
• X14 1b
• Z10 3b (left footwell)
• Z10 7b (behind right rear passenger seat)

Heated Steering Wheel Wiring Diagram for BMW 428i 2014

List of elements for Heated Steering Wheel Wiring Diagram for BMW 428i 2014:

22

• (or red)
• Computer data lines system
• Electronic steering wheel module (in steering wheel)
• Fanfare horn button
• Front power distribution box (right rear of engine compt)
• Fuse 10a
• Gnd
• Hot w/ terminal 15n relay energized
• Left shift paddle
• Left steering wheel multi-function switch block
• Lhz+
• Lhz-
• Nca
• Pwm bfi
• Right shift paddle
• Right steering wheel multi-function switch block
• Steering column switch cluster
• Steering wheel heater
• Steering wheel heating switch
• T lhz+
• T lhz-
• Vibration actuator (in steering wheel)

Lumbar Wiring Diagram, Convertible for BMW 428i 2014

List of elements for Lumbar Wiring Diagram, Convertible for BMW 428i 2014:

14

• Driver's lumbar support valve block
• Driver's seat pneumatic pump
• Driver's side seat adjustment switch block
• Front passenger side seat adjustment switch block
• Front passenger's seat pneumatic pump
• Front power distribution box (right rear of engine compt)
• Fuse 10a
• Hot w/ terminal 30b relay energized
• Passenger's lumbar support valve block
• Red
• X12 1b
• X14 1b
• Z10 3b (left footwell)
• Z10 5b (right footwell)

Lumbar Wiring Diagram, Coupe for BMW 428i 2014

List of elements for Lumbar Wiring Diagram, Coupe for BMW 428i 2014:

20

• Driver's lumbar support valve block
• Driver's seat backrest width adjustment valve block
• Driver's seat lumbar support switch
• Driver's seat pneumatic pump
• Driver's side seat adjustment switch block
• Front passenger's lumbar support valve block
• Front passenger's seat backrest width adjustment valve block
• Front passenger's seat pneumatic pump
• Front power distribution box (right rear of engine compt)
• Fuse 10a
• Hot w/ terminal 30b relay energized
• Passenger's lumbar support switch
• Passenger's side seat adjustment switch block
• Red
• W/ electric seat adjustment
• W/o electric seat adjustment
• X719 1b
• X720 1b
• Z10 3b (left footwell)
• Z10 5b (right footwell)

Neck Warmer Wiring Diagram for BMW 428i 2014

List of elements for Neck Warmer Wiring Diagram for BMW 428i 2014:

25

• (behind right rear passenger seat) z10 7b
• 11b
• Driver seat module (under front of driver seat)
• Fan
• Front power distribution box (right rear of engine compt)
• Fuse 20a
• Fuse 30a
• Fuse 5a
• Hardtop operating unit
• Heating
• Hot w/ terminal 30b relay energized
• Left neck warmer
• Left neck warmer button
• Nca
• Neck warmer control electronics (under center rear seat)
• Rear fuse holder
• Right neck warmer
• Right neck warmer button
• X12 1b
• X12 2b
• X14 1b
• X14 2b
• Z10 3b (left footwell)
• Z10 6b (right footwell)
• Z10 7b (behind right rear passenger seat)

Rear Heated Seats Wiring Diagram for BMW 428i 2014

List of elements for Rear Heated Seats Wiring Diagram for BMW 428i 2014:

21

• 11b
• Computer data lines system
• Early production
• Front power distribution box (right rear of engine compt)
• Fuse 20a
• Fuse 20a 30a
• Fuse 5a
• Hot w/ terminal 30b relay energized
• Late production
• Left rear seat heating switch
• Rear driver's side seat backrest heating element
• Rear driver's side seat cushion heating element
• Rear driver's side seat heating module
• Rear fuse holder
• Rear passenger's side seat backrest heating element
• Rear passenger's side seat cushion heating element
• Rear passenger's side seat heating module
• Right rear seat heating switch
• Z10 4b (left footwell)
• Z10 6b (right footwell)
• Z10 7b (behind right rear passenger seat)

Sport Seats Wiring Diagram for BMW 428i 2014

List of elements for Sport Seats Wiring Diagram for BMW 428i 2014:

25

• Computer data lines system
• Driver lumbar support valve block
• Driver's seat backrest width adjustment switch
• Driver's seat backrest width adjustment valve block
• Driver's seat module (under front of driver seat)
• Driver's seat pneumatic pump
• Driver's side seat adjustment switch block
• Front passenger's lumbar support valve block
• Front passenger's seat backrest width adjustment switch
• Front passenger's seat backrest width adjustment valve block
• Front passenger's seat module (under front of front passenger seat)
• Front passenger's seat pneumatic pump
• Front passenger's side seat adjustment switch block
• Front power distribution box (right rear of engine compt)
• Fuse 10a
• Hot w/ terminal 30b relay energized
• Red
• W/ electric seat adjustment
• W/ lumbar support
• W/o electric seat adjustment
• W/o lumbar support
• X719 1b
• X720 1b
• Z10 3b (left footwell)
• Z10 5b (right footwell)