
49
Electrical System Interface
Electrical System
Interface
OEM J1939 Based Shift Devices
•
OEM shift device shall connect to the vehicle’s J-1939 communications bus.
•
OEM shift device shall provide separate indication of a requested neutral state via TCM pins J1-16 and J1-17.
•
The OEM shall indicate neutral request to the TCM by bringing a 5 ± 10% volt signal through a 1000 ohm resistor to
less than 1.2 VDC at TCM pin J1-16 with respect to J1-17.
•
The OEM shall indicate a non-neutral state request by providing an impedance of 10,000 ohms ± 1% across TCM J1-16
and J1-17.
Typical System Wiring with OEM SAE J1939 Shift Input Device
23
17
31
24
25
29
30
15
16
26
20
34
27
28
32
33
18
19
7
8
9
2
10
6
11
12
4
5
22
21
38
36
37
13
14
35
1
3
TCM Co
nn
ecto
r
(Vehicle I
n
te
r
face)
F
r
o
n
t View
J1
OEM J1939
S
hift Device
B
u
lkhead co
nn
ecto
r
located at fi
r
ewall
J1939
TCM Co
nn
ecto
r
(Vehicle I
n
te
r
face)
16
17
S
witched Powe
r
G
r
o
un
d
Batte
r
y Powe
r
(No
n
-
s
witched powe
r
run
to Batte
r
y)
Содержание UltraShift PLUS EO-11E406B-PV
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