Airbags
● Driver and front passenger airbag
● Belt tensioners, with seat occupied sensor, front passenger seat
● Belt buckle control
● Curtain airbag
● Front side airbag
from
November 2007
Notes:
For information concerning
t
Position of relays and fuses
t
Multi-pin connections
t
Control units and relays
t
Earth points
→ Fitting Locations, see contents!
León
Current Flow Diagram
No.
158 /
2
ws
=
white
sw
=
black
ro
=
red
rt
=
red
br
=
brown
gn
=
green
bl
=
blue
gr
=
grey
li
=
purple
vi
=
purple
ge
=
yellow
or
=
orange
rs
=
pink
Battery, terminal 15 voltage supply relay 2, airbag control unit
A
-
Battery
C
-
Alternator
J234
-
Airbag control unit, behind the lower console
J519
-
Onboard supply control unit
J681
-
Terminal 15 voltage supply relay 2, on onboard supply control unit (460)
SA1
-
Fuse 1 on fuse holder/battery
SB28
-
Fuse 28 on fuse holder
SC3
-
Fuse 3 on fuse holder
T40
-
40-pin connector, under electronics box, in left engine compartment
T100
-
100-pin connector
1
-
Earth strap, battery - body
507
-
Screw connection (30), on fuse holder on battery
A38
-
Positive connection 2 (15a), in dash panel wiring harness
A200
-
Positive connection 5 (15a), in dash panel wiring harness
*
-
only models with alternator 90A/110A
**
-
only models with alternator 140A
León
Current Flow Diagram
No.
158 /
3
ws
=
white
sw
=
black
ro
=
red
rt
=
red
br
=
brown
gn
=
green
bl
=
blue
gr
=
grey
li
=
purple
vi
=
purple
ge
=
yellow
or
=
orange
rs
=
pink
Driver and front passenger side belt switch, airbag igniters for driver side, driver seat belt tensioner igniter
E24
-
Driver side belt switch
E25
-
Front passenger side belt switch
F138
-
Airbag coil connector
G128
-
Seat occupied sensor, front passenger side
J234
-
Airbag control unit, behind the lower console
J519
-
Onboard supply control unit
J527
-
Steering column electronics control unit
N95
-
Driver side airbag igniter
N153
-
Driver seat belt tensioner igniter
T2e
-
2-pin connector, behind B-pillar trim on lower left
T2l
-
2-pin connector, on driver seat
T2i
-
2-pin connector, on driver seat
T2q
-
2-pin connector, on front passenger seat
T2r
-
2-pin connector, on front passenger seat
T2v
-
2-pin connector, on front passenger seat
T4f
-
4-pin connector
T12f
-
12-pin connector
T100
-
100-pin connector
109
-
Earth connection, in airbag wiring harness
León
Current Flow Diagram
No.
158 /
4
ws
=
white
sw
=
black
ro
=
red
rt
=
red
br
=
brown
gn
=
green
bl
=
blue
gr
=
grey
li
=
purple
vi
=
purple
ge
=
yellow
or
=
orange
rs
=
pink
Key operated switch to deactivate front passenger side airbag, front passenger seat belt tensioner igniter, front passenger side airbag igniter 1
E224
-
Key operated switch to deactivate front passenger side airbag
J234
-
Airbag control unit, behind the lower console
J519
-
Onboard supply control unit
K145
-
Front passenger side airbag deactivated warning lamp
N131
-
Front passenger side airbag igniter 1
N154
-
Front passenger seat belt tensioner igniter
T2f
-
2-pin connector, behind B-pillar trim on lower right
T3j
-
3-pin connector, near front passenger airbag
T4c
-
4-pin connector
T6g
-
6-pin connector, in glove compartment
T100
-
100-pin connector
109
-
Earth connection, in airbag wiring harness
*
-
models with front passenger airbag deactivation only
León
Current Flow Diagram
No.
158 /
5
ws
=
white
sw
=
black
ro
=
red
rt
=
red
br
=
brown
gn
=
green
bl
=
blue
gr
=
grey
li
=
purple
vi
=
purple
ge
=
yellow
or
=
orange
rs
=
pink
Side airbag igniter on driver side and front passenger side, side airbag crash sensor on driver side and front passenger side, airbag control unit
G179
-
Side airbag crash sensor on driver side
G180
-
Side airbag crash sensor on front passenger side
J234
-
Airbag control unit, behind the lower console
J519
-
Onboard supply control unit
N199
-
Side airbag igniter on driver side
N200
-
Side airbag igniter on front passenger side
T3k
-
3-pin connector, under driver seat
T3l
-
3-pin connector, under front passenger seat
T20a
-
20-pin connector, driver side A-pillar
T20b
-
20-pin connector, front passenger side A-pillar
T100
-
100-pin connector
109
-
Earth connection, in airbag wiring harness
León
Current Flow Diagram
No.
158 /
6
ws
=
white
sw
=
black
ro
=
red
rt
=
red
br
=
brown
gn
=
green
bl
=
blue
gr
=
grey
li
=
purple
vi
=
purple
ge
=
yellow
or
=
orange
rs
=
pink
Driver side and front passenger side curtain airbag igniter, rear side airbag crash sensors on driver side and front passenger side, airbag control unit
G256
-
Rear side airbag crash sensor on driver side
G257
-
Rear side airbag crash sensor on front passenger side
J234
-
Airbag control unit, behind the lower console
J519
-
Onboard supply control unit
N251
-
Driver side curtain airbag igniter
N252
-
Front passenger side curtain airbag igniter
T2g
-
2-pin connector, near roof, front left
T2h
-
2-pin connector, near roof, front right
T100
-
100-pin connector
León
Current Flow Diagram
No.
158 /
7
ws
=
white
sw
=
black
ro
=
red
rt
=
red
br
=
brown
gn
=
green
bl
=
blue
gr
=
grey
li
=
purple
vi
=
purple
ge
=
yellow
or
=
orange
rs
=
pink
Dash panel insert, data bus diagnostic interface, airbag warning lamp, seat belt warning system warning lamp, airbag control unit
J234
-
Airbag control unit, behind the lower console
J285
-
Display control unit in dash panel insert
J519
-
Onboard supply control unit
J527
-
Steering column electronics control unit
J533
-
Data bus diagnostic interface, on left under dash panel
K19
-
Seat belt warning system warning lamp
K75
-
Airbag warning lamp
T20
-
20-pin connector
T20d
-
20-pin connector
T36
-
36-pin connector
T100
-
100-pin connector
B383
-
Connection 1 (drive train CAN bus, high), in main wiring harness
B390
-
Connection 1 (drive train CAN bus, low), in main wiring harness
B397
-
Connection 1 (convenience CAN bus, high), in main wiring harness
B406
-
Connection 1 (drive train CAN bus, low), in main wiring harness
