APRILIA CAPONORD 1200 Service Station Manual page 136

Electrical system
Electrical specifications:
•
internal injectors (Marelli): 14.8 Ω ± 5% (at ambient temp.)
•
external injectors (Synerject): 12.0 Ω ± 5% (at ambient temp.)
Pin out:
1. Fuel system
2. Negative from control unit
DIAGNOSTICS INSTRUMENT:PARAMETERS
Front cylinder injection time
•
Example value with engine on: 1.9 ms
Rear 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 INSTRUMENT: ACTIVATION
Internal front cylinder injector
•
The auxiliary injection relay (No. 46 in the wiring diagram, placed in the front relay box, left
side; CHECK, however, the identification of the relay with the colour of the cables) is ener-
gised 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
ELE SYS - 136
CAPONORD 1200