APRILIA SL 750 SHIVER, Service Station Manual, Page: 139 / 303

Specification Desc./Quantity
34 BLACK BODY: Aerial 1 PIN 34
35 BLACK BODY: Light relay activation PIN 35
36 BLACK BODY: * PIN 36
37 BLACK BODY: * PIN 37
38 BLACK BODY: General ground PIN 38
39 BLACK BODY: General ground PIN 39
40 BLACK BODY: General ground PIN 40
NOTE
THE CONNECTOR CAN BE VIEWED FROM
THE CABLE HARNESS SIDE, THAT IS LOOK-
ING AT THE CABLES WHEN GOING OUT OF
THE "MAIN" CABLE HARNESS AND INTO THE
CONNECTOR.
Can line
CAN line
Function
It allows communication between the Marelli injection control unit, the throttle control unit and the in-
strument panel.
Level in wiring diagram: CAN line
Pin-out: see wiring diagram
AXONE: ELECTRICAL ERRORS
U1602 CAN line without signals - Bus Off.
Error cause
•
No communication on CAN line (PIN 20 and/or PIN 51 VEHICLE): problem on the whole
network (for example, battery cut-off or short circuited or shorted to ground).
Troubleshooting
•
Check the Marelli control unit VEHICLE connector: if not OK, restore; if OK, check the earth
insulation of the two CAN lines from PIN 20 and PIN 51 of the VEHICLE connector: If not
OK, restore the cable harness; if OK, check continuity of the two CAN lines from the Marelli
control unit VEHICLE connector to the filter casing large connector and to the instrument
panel connector: if not OK, restore the cable harness; if OK, check that the two lines are not
short circuited to positive testing each of the 3 connectors (Marelli control unit connector,
filter casing large connector and instrument panel connector) with 1 connector disconnected
at a time and by setting the key to ON: If not OK, restore; if OK, replace the Marelli control
unit.
Mute Node CAN Line, U1601 - Mute Node
SL 750 SHIVER
Electrical system
ELE SYS - 81