Revised September 13, 2013
Vehicle Speed Sensor Speedometer Signal
S
p
e
ed
o
m
e
te
r S
ign
a
l I
n
p
u
t [
P
ur
pl
e
]
T
ra
n
s
m
issi
o
n
G
ro
und
(s
am
e
p
lac
e
a
s
b
lac
k
w
ire)
1
2
3
4
5
6
7
8
9
+12V
D
C
s
w
itc
hed
[
9
]
G
ood
Chas
s
is
G
ro
u
n
d
[
8
]
F
ue
l Le
v
e
l Si
gn
al
[
7
]
O
il P
re
s
s
ur
e
Si
gn
al
[
6
]
W
a
te
r Te
m
p
er
at
ur
e S
ign
al
[
5
]
L
ef
t T
u
rn
I
nd
ic
at
or
[
4
]
Ri
gh
t Tu
rn
Ind
ic
at
or
[
3
]
H
ig
h
Be
am
I
nd
ic
at
or
[
2
]
D
as
h Li
gh
t Po
we
r
[
1
]
G
ood
Chas
s
is
G
ro
u
n
d
[
Bl
ac
k
]
F
un
c
tio
n
Bu
tton
I
np
ut
[
Br
ow
n
]
G
ood
C
h
as
s
is
G
ro
und
P
us
hb
utton
Tac
hom
et
er
S
ig
n
a
l [
W
hi
te
]
G
re
y
,
Bl
u
e
/
W
h
it
e
,
P
u
rp
le
/
W
h
it
e
and
G
re
e
n
/
Wh
it
e
w
ire
s
a
re
NO
T
us
ed.
P
u
ls
e
S
ign
a
l G
e
n
e
ra
to
r P
o
w
e
r [
Re
d
]
(
u
s
e
o
n
ly
w
ith
S
N
1
6
o
r S
N
1
6
F
)
Not
U
se
d
In
s
u
la
te
e
x
po
s
e
d
wire
