APRILIA CAPONORD 1200 Service Station Manual page 115

CAPONORD 1200
OK, check that the tyre pressure is the correct one. If it is not OK, restore it; if it is OK, replace the speed
sensor.
Engine rpm sensor
ENGINE SPEED SENSOR
Function
It informs crankshaft position and speed to the
Marelli control unit.
Operation / Operating principle
Inductive sensor: sinusoidal-type generated volt-
age; two teeth are missing on the flywheel for the
reference position.
Level in electrical circuit diagram: engine spe-
ed sensor
Location:
•
on the vehicle: inside the flywheel cov-
er
•
connector (if available): near the Mar-
elli control unit
Electrical specifications:
•
Resistance at ambient temperature:
130 +/- 20 Ohm
Pin-out:
1. Negative signal
2. Positive signal
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING, CAREFULLY READ THE GENERAL TROU-
BLESHOOTING CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGINNING OF THE CHECK
AND CONTROL SECTION IN THE ELECTRICAL SYSTEM CHAPTER.
DIAGNOSTICS INSTRUMENT: STATUSES
Synchronised panel
•
No_under analysis_standby_Yes
DIAGNOSTICS INSTRUMENT: ELECTRICAL ERRORS
CAUTION
IF THE ELECTRIC CIRCUIT IS INTERRUPTED OR SHORT-CIRCUITED, NO ERROR IS DIS-
PLAYED. CHECK THE ENGINE SPEED SENSOR CONNECTOR AND THE MARELLI CONTROL
UNIT CONNECTOR: IF NOT OK, RESTORE; IF OK, CHECK THE CORRECT ELECTRIC CHAR-
ACTERISTICS OF THE SENSOR: IF NOT OK, REPLACE THE SENSOR. IF OK, CHECK THAT
THERE IS CONTINUITY ON BOTH CABLES, SUPPLY INSULATION AND GROUND INSULATION.
Electrical system
ELE SYS - 115