APRILIA MSS Mana GT ABS Service Station Manual page 136

Electrical system
Function
By means of a transmission gear, it allows the rotation of the driving pulley control bushing which in
turn moves the driving half-pulley axially.
Operation / Operating principle
DC motor with pulse activation (duty cycle). The rotation in both directions is controlled by the control
unit by inverting the power supply polarity.
Level in wiring diagram:Transmission management
Location:
•
on the vehicle: up and to the left of the transmission cover
•
connector: Under helmet compartment
Electrical specifications:
•
Winding resistance < 1 Ohm
•
Input: nominal 10A
•
Maximum input: 22 A
Pin-out:
1. Red
2. Black
AXONE / AUTOMATIC TRANSMISSION system
PARAMETERS
Driving pulley control electrical motor duty cycle
Example value: %
It is a speed indicator of the driving half-pulley movement in axial direction.
NOTE: When troubleshooting, use the interface, code 020481Y, with the adaptor, code 020481Y004.
The correspondence between the control unit PIN and the interface PIN is the following: control unit
PIN A1....A8 and interface PIN interface 11....18, control unit PIN B1....B8 and interface PIN interface
21....28, control unit PIN C1....C8 and interface PIN interface 31....38.
ERRORS
Driving pulley electrical motor - Code 900A - excessive actuation time/ excessive current input/ signal
not valid.
Error cause
•
If activation time is excessive: the position is not reached within a standard time although
the driving pulley motion control is activated. If input current is excessive: the transmission
ECU detects excessive ampere input for the driving pulley electric motor. If the signal is not
valid: a short-circuit to ground has been detected at battery PIN A8 or PIN B8.
Troubleshooting
•
If activation time is excessive: check circuit continuity between PIN A8 and B8: if it is not
OK, continue with Phase 1; if it is OK, check the gears which receive the movement from
ELE SYS - 136
MSS Mana GT ABS