Twistgrip Position Sensor - APRILIA SL 750 SHIVER Service Station Manual

Electrical system
AXONE: ELECTRICAL ERRORS
-
CAUTION
IF THE ELECTRIC CIRCUIT IS INTERRUPTED OR SHORT-CIRCUITED OR NO ERROR IS DIS-
PLAYED, CHECK THE REVOLUTION SENSOR CONNECTOR AND THE MARELLI CONTROL UNIT
CONNECTOR: IF NOT OK, RESTORE; IF OK, CHECK THE SENSOR ELECTRIC CHARACTERIS-
TIC IS THE CORRECT ONE: IF IT IS NOT, REPLACE THE SENSOR. IF IT IS THE CORRECT ONE,
CHECK THAT THERE IS CONTINUITY ON BOTH CABLES, SUPPLY INSULATION AND GROUND
CONNECTION INSULATION. CARRY OUT THE TESTS FROM THE SENSOR CONNECTOR TO
THE SENSOR. IF NOT OK, RESTORE THE CABLE HARNESS/REPLACE THE SENSOR. IF OK,
PERFORM THE TEST FROM PINS 9 AND 23 OF THE MARELLI CONTROL UNIT ENGINE CON-
NECTOR.
AXONE: LOGIC ERRORS
Engine revolution sensor P0336 - Synchronism lost
Error cause
•
Displayed if the signal is not as the control unit expects, for example due to voltage fluctu-
ations not correctly repeated.
Troubleshooting
•
Check that the flywheel teeth are clean and the sensor is adequately placed in its fitting: if
not OK, restore; if OK, replace the sensor.

Twistgrip position sensor

THROTTLE GRIP POSITION SENSOR
Function
The throttle grip is the part to which the throttle control cables arrive; its task is to translate the rider's
power request (Demand) into an electrical signal to be sent to the electronic control unit.
Operation / Operating principle
The two throttle cables (opening and closing) actuate on a scroll mounted on a shaft which is sent back
to its home position by a return spring. On the shaft covers there are 2 double track potentiometers (4
control tracks) by means of which the torque demand is read (and checked). The 4 potentiometers are
tinned and magnetically controlled (contactless); they cannot be overhauled nor replaced
Level in wiring diagram:Throttle grip position sensor.
Location:
•
on the vehicle: under the fuel tank
•
connector: direct to the Marelli control unit
Electrical characteristics:
•
Not detected by a multimeter as they are contactless: read voltage on the 4 tracks through
Axone.
CAUTION
ELE SYS - 34
SL 750 SHIVER