APRILIA MSS Mana GT ABS, Service Station Manual

Page: 124 / 394

potentiometer: track 2" parameters drops to zero: if it drops to zero, replace the sensor; if it
does not, restore the green/pink cable.
•
If below the minimum threshold: check the transmission ECU connector and the sensor
connector: if it they are not OK, restore; if they are OK, check continuity on green/pink cable:
if it is not OK, restore the cable; if it is OK, replace the sensor.
•
If signal is not valid: check the transmission ECU connector and the sensor connector: if
they are not OK, restore; if they are OK, replace the sensor.
Driving pulley potentiometer supply voltage: track 1 - Code 900B - signal not valid.
Error cause
•
Voltage value at PIN C6 is not within the expected limits.
Troubleshooting
•
With key set to KEY ON, read the value of the "Driving pulley potentiometer supply voltage:
track 1" parameter: if it is equal to the battery voltage, there is a short circuit on the battery
and it is necessary to restore the cable harness; if it is equal to zero, disconnect the sensor:
if voltage goes up to approximately 5 V, replace the sensor; if the voltage remains at zero,
check the transmission ECU connector: if it is not OK, restore; if it is OK, check if there is
continuity between PIN C6 and the ground connection: if there is continuity restore the cable
harness; if there is not continuity, replace the transmission ECU.
Driving pulley potentiometer supply voltage: track 2 - Code 900C - signal not valid.
Error cause
•
Voltage value at PIN A4 is not within the expected limits.
Troubleshooting
•
With key set to KEY ON, read the value of the "Driving pulley potentiometer supply voltage:
track 2" parameter: if it is equal to the battery voltage, there is a short circuit on the battery
and it is necessary to restore the cable harness; if it is equal to zero, disconnect the sensor:
if voltage goes up to approximately 5 V, replace the sensor; if the voltage remains at zero,
check the transmission ECU connector: if it is not OK, restore; if it is OK, check if there is
continuity between PIN A4 and the ground connection: if there is continuity, restore the cable
harness; if there is not continuity, replace the transmission ECU.
ADJUSTABLE PARAMETERS
CAUTION
DURING THIS PROCEDURE, THE REAR WHEEL SHOULD NOT TOUCH THE GROUND.
Potentiometer reset
Follow the procedure step by step as indicated in the various screen pages (black label module OBD,
2006).
Potentiometer reset, Phase 1
Follow the procedure step by step as indicated in the various screen pages (yellow or black label OBD
module without 2006 legend).
Electrical system
MSS Mana GT ABS
ELE SYS - 124