APRILIA SL 750 SHIVER Service Station Manual page 139

SL 750 SHIVER
34 BLACK BODY: Aerial 1
35 BLACK BODY: Light relay activation
36
37
38 BLACK BODY: General ground
39 BLACK BODY: General ground
40 BLACK BODY: General ground
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
Specification
BLACK BODY: *
BLACK BODY: *
Electrical system
Desc./Quantity
PIN 34
PIN 35
PIN 36
PIN 37
PIN 38
PIN 39
PIN 40
ELE SYS - 81