MOTO GUZZI NEVADA 750, Service Station Manual

Page: 56 / 128

black cable (between main injection relay and Marelli control unit) are in shorted to positive:
restore the cable harness. If cable harness is OK, replace the Marelli control unit
ECU
PIN:
1. Throttle position sensor supply - Power out-
put
2. Lambda probe signal (ground) - Analogue
input
3. Rpm indicator control - Frequency output
4. Cylinder head temperature sensor signal -
Analogue input
5. -
6. Right injector control - Power output
7. Engine revolution sensor - Frequency input
8. Lambda probe signal (positive) - Analogue
input
9. Diagnosis line (K) - Communication line
10.Diagnosis line (L) - Communication line
11.Throttle position signal - Analogue input
12.Engine revolution sensor - Frequency input
13.Right injector control - Power output
14.Right coil control - Power output
15.Injection telltale light control - Digital output
16.Fall sensor signal - Digital input
17.Control unit supply - Power input
18.Intake air temperature sensor signal - Ana-
logue input
19.Injection relay control - Digital output
20.Left coil control - Power output
21.-
22.Sensors supply (ground) - Power output
23.Control unit supply (ground) - Power input
24.Control unit supply (ground) - Power input
25.-
26.Control unit supply (+15) - Power input
Electrical system
NEVADA 750
ELE SYS - 56