MOTO GUZZI B043157 Service Station Manual page 139

Moto Guzzi California 1400
•
on the vehicle: intake manifold on the cylinder
•
connector: on injectors
Electrical specifications:
14.8Ω ± 5% (at ambient temp)
Pin out left cylinder:
1. Power (orange/green cable)
2. Ground (grey/red cable)
Pin out right cylinder:
1. Power (orange/green cable)
2. Ground (white/black cable)
DIAGNOSTICS TOOL:PARAMETERS
Left cylinder injection time
•
Example value with engine on: 1.9 ms
Right cylinder injection time
•
Example value with engine on: 1.9 ms
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING, CAREFULLY READ THE GENERAL TROU-
BLESHOOTING CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGINNING OF THE CHECK
AND CONTROL SECTION IN THE ELECTRICAL SYSTEM CHAPTER.
DIAGNOSTICS TOOL: ACTIVATION
'Left cylinder injector
•
The auxiliary injection relay (No. 35 in the electrical circuit diagram, placed in the front relay
box, left side; CHECK, however, the identification of the relay with the colour of the cables)
is energised for 5 seconds and the injector cable connected to control unit is closed to ground
for 4 ms per second. Disconnect the 4-way connector of the fuel pump to be able to hear
the relay and injector activation. The continuity of the wiring is necessary for correct activa-
tion: no error indications are displayed in case of lack of activation
'Right cylinder injector
•
The auxiliary injection relay (No. 35 in the electrical circuit diagram, placed in the front relay
box, left side; CHECK, however, the identification of the relay with the colour of the cables)
is energised for 5 seconds and the injector cable connected to control unit is closed to ground
for 4 ms per second. Disconnect the 4-way connector of the fuel pump to be able to hear
the relay and injector activation. The continuity of the wiring is necessary for correct activa-
tion: no error indications are displayed in case of lack of activation
DIAGNOSTICS INSTRUMENT: ELECTRICAL ERRORS
'Left cylinder injector: P0205
•
short circuit to positive/ short circuit to negative / open circuit
Electrical system
ELE SYS - 139