APRILIA SHIVER 900 Service Station Manual page 177

SHIVER 900
•
on the vehicle: on the handlebar.
•
connector: on the sensor.
Electrical specifications:
•
Clutch engaged: closed circuit (con-
tinuity)
•
Clutch released: open circuit (infinite
resistance).
Pin out:
1. voltage 5V
2. ground lead
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING,
CAREFULLY READ THE GENERAL TROUBLESHOOTING
CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGIN-
NING OF THE CHECK AND CONTROL SECTION IN THE
ELECTRICAL SYSTEM CHAPTER.
DIAGNOSTIC TOOL: LOGIC ERRORS
P0704 Clutch switches plausibility error
Diagnosis:
•
signal not plausible.
Error cause:
•
If there is one contact: the plausibility diagnosis cannot occur only at key ON but during
operation. The control unit logic requires that the released/engaged and engaged/released
witching time does not exceed a certain threshold. If the operating time is too long, the error
is shown. To check the origin of the problem, it is enough to connect the diagnostic tool to
see if , despite the clutch lever operations, the status remains "ENGAGED". Check the wiring
harness or the sensor.
•
If there are two contacts: the plausibility diagnosis can occur at key ON. Since there are two
contacts that cannot be both "CLOSED" or both "OPEN" (excepting fraction of a second
while switching from "RELEASED" to "ENGAGED" and vice versa), if they are, the error is
shown.
The presence of this error is signalled by the fixed lighting of the general warning light.
Troubleshooting:
•
If the error is active only with the lever released: the problem is generated by the released
clutch contact of the which is interrupted or by the engaged clutch contact which is in short
circuit to ground.
Electrical system
ELE SYS - 177