Installation and adjustament manual
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DESCRIPTION
3.6 Wiring
LIS requires only one wiring harness.
The harness includes
- an automotive type, weatherproof, 55-pin connector for
the connection to the ECU (Fig 3.7)
- a connector for the connection to the PC
- a connector for the working pressure tester
- a connector for the connection to the switch
- two connectors for the connection to the step-motors of
the proportioner.
Harness Description Table in the Figure 3.6:
Fig.3.7
Pin Signal
Color
1.
Ground
Black
2.
Petrol injection disabling
Yellow
3.
Cut-off solenoid valve
Green/Black
4.
12V accessories
Red
5.
RPM counter
Brown
6.
Temperature
Orange
7.
N.C.
N.C.
8.
N.C.
N.C.
9.
Serial port +5V supply
Red/White
10.
Serial port ground
Black
11.
Serial port Data IN
Pink/Black
12.
Serial port Data OUT
Pink
13.
Pressure conn. supply
Red/White
14.
Pressure conn. signal
Orange/Black
15.
Pressure conn. ground
Nero
16.
N.C.
N.C.
17
N.C.
N.C.
18.
N.C.
N.C.
19.
N.C.
N.C.
20.
N.C.
N.C.
21.
N.C.
N.C.
22.
N.C.
N.C.
23.
N.C.
N.C.
24.
N.C.
N.C.
25.
N.C.
N.C.
26.
N.C.
N.C.
27.
Proportioner Ground
Black
28.
+12 Battery
Red/Black
29.
Petrol injection disabling
Yellow
30.
N.C.
N.C.
31.
Gas out
Blue
32.
Oxigen sensor emulation
Gris
33.
Oxigen sensor
Purple
34.
Alternative fuel level sensor
White
35.
Power supply sensor
Green
36.
N.C.
N.C.
37.
N.C.
N.C.
38.
TPS
Yellow/Blue
39.
TPS/2
Blue/Black
40.
Switch
Brown
41.
Switch shunter
Blue
42.
DC Switch supply
Red
43.
Switch Ground
Black
44.
Step motor signal
White
45.
Step motor signal
Orange
46.
Step motor signal
Light blue
47.
Step motor signal
Purple
48.
N.C.
N.C.
49.
N.C.
N.C.
50.
N.C.
N.C.
51.
N.C.
N.C.
52.
Step motor signal
White
53.
Step motor signal
Orange
54.
Step motor signal
Light blue
55.
Step motor signal
Violette
Fig.3.6
3.7 Switch
In the Figure 3.8 is reported the switch sketch.
3.7.1 Switch with fuel level indicator specifications
A) Gas-petrol switch, two positions
- switch in left, petrol position
- switch in right, gas position
B) Green L.E.D.s display bar readout interpretation:
- during the functioning of the vehicle in petrol, all LEDs
are OFF
- fast flashing, the system is waiting for automatic change-
over to gas after start-up. (please note that the start-up is
always on petrol);
- constantly on, the vehicle is operating on gas, the L.E.D.s
bar indicates the level of gas in the tank with a 1/4 tank
resolution;
- last L.E.D.(1/4) slow flashing, indicates reserve
condition.
C) Red L.E.D.
- the red L.E.D. slow flashing indicates gas system
malfunction.
D) Connector
- Connects the switch to the harness from the ECU.
Fig.3.8
