APRILIA SHIVER 900, Service Station Manual

Page: 184 / 444

cable: if it is missing, restore the wiring harness; if there is, check the ground insulation of
the Yellow/Red cable: if there is continuity with the ground, restore the wiring harness; if ok,
turn the key to OFF and perform the VEHICLE connector and engine-vehicle wiring harness
connector check: if not ok, restore; if ok, check the continuity of the Yellow/Pink cable be-
tween the switch connector and the VEHICLE connector PIN C7 and PIN 78: if not ok, restore
the wiring harness; if ok, replace the Marelli control unit.
•
Indication on the diagnostic tool always RUN: disconnect the connector and check with the
switch in STOP of there is continuity between the two cables of the switch: if there is, replace
the switch, if there is no continuity it means that, with the key ON, the Yellow/Pink cable
(between the switch and PIN C7 of the engine-vehicle wiring harness connector or between
the latter and PIN 78 of the control unit connector) is in short circuit to positive: restore the
wiring harness.
Throttle control unit
THROTTLE CONTROL UNIT
Function
It receives the throttles target position from the Marelli control unit and it moves them so that they reach
that target by reading their position through the potentiometers (2 per throttle body).
Level in wiring diagram: throttle control unit
Location:
•
on the vehicle: inside the filter casing
•
connector: on the control unit
Pin-out: see the CONNECTORS section
See also
Throttle control unit
Connectors
Electrical system
SHIVER 900
ELE SYS - 184