APRILIA SL 750 SHIVER Service Station Manual page 54

Troubleshooting
Engine
The engine does not start
THE ENGINE DOES NOT START
CAUTION
AXONE SHOULD BE WORKING PROPERLY AND UPGRADED TO THE 5.1.5 VERSION MINIMUM.
CAUTION
BEFORE ANY TROUBLESHOOTING, MAKE SURE THAT:
1) BATTERY VOLTAGE IS ABOVE 12V;
2) THE MAIN 30A FUSE IS NOT DAMAGED AND IS ADEQUATELY FITTED;
3) AUXILIARY FUSES ARE NOT DAMAGED AND ARE ADEQUATELY FITTED.
NOTE
THE RELAY NUMBER SPECIFIED REFERS TO THE WIRING DIAGRAM. THE POSITION OF THE
RELAY ON THE VEHICLE IS INDICATED IN THE "ELECTRICAL SYSTEM/COMPONENT LAYOUT/
RELAY LAYOUT" CHAPTER.
•
1 - WITH THE KEY TURNED TO "ON", THE INSTRUMENT PANEL LIGHTS UP BUT NO
FAILURE INDICATION IS SHOWN. IS THE FUEL PUMP ACTIVATED?
•
2 - DOES AXONE COMMUNICATE WITH THE CONTROL UNIT?
•
3 - ACTIVATE ONE INJECTOR BY MEANS OF AXONE ("DEVICES ACTIVATION"
SCREEN PAGE, INJECTOR ICON): IS THE INJECTOR ACTIVATED?
•
4 -WITH THE KEY TURNED TO "OFF" CHECK IF THERE IS VOLTAGE ON THE ORANGE/
RED CABLE OF THE MAIN INJECTION RELAY (POLARISED) 41.
•
5 - INSPECT IF THERE IS AN INTERRUPTION IN THE ORANGE/RED CABLE FROM THE
MAIN INJECTOR RELAY (POLARISED) TO THE BATTERY POSITIVE.
•
6 - WITH THE KEY TURNED TO "ON" CHECK IF THERE IS VOLTAGE ON THE GREEN/
BLACK CABLE OF THE MAIN INJECTION RELAY (POLARISED) 41.
•
7 - INSPECT THE GREEN/BLACK CABLE FROM THE MAIN INJECTION RELAY (PO-
LARISED) 41 TO THE KEY SWITCH - END
•
8 - IS THE BLUE CABLE GROUNDED?
•
9 - RESTORE THE CABLE HARNESS.
•
10 - CHECK IF THERE IS VOLTAGE ON THE RED/BLACK CABLE.
TROUBL - 4
YES, go to 27; NO, go to 2
YES, go to 3; NO, go to 4
YES, go to 17; NO, go to 12
YES, go to 6; NO, go to 5
OK, go to 8; NOT OK, go to 7
YES, go to 10; NO, go to 9
NOT OK, go to 11; OK, go to 12
SL 750 SHIVER