APRILIA RSV4 Factory Service Station Manual page 154

Electrical system
1. negative signal
2. positive signal
3. shielding with ground connection
DIAGNOSIS INSTRUMENT: PARAMETERS
Engine rpm: rpm
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.
DIAGNOSIS INSTRUMENT: STATUSES
Synchronised panel
•
No_under analysis_standby_Yes
DIAGNOSIS 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.
CARRY OUT THE TESTS FROM THE SENSOR CONNECTOR TO THE SENSOR. IF NOT OK, RE-
STORE THE CABLE HARNESS/REPLACE THE SENSOR. IF OK, PERFORM THE TEST FROM PIN
9 AND 23 OF THE MARELLI CONTROL UNIT ENGINE CONNECTOR.
DIAGNOSIS INSTRUMENT: LOGIC ERRORS
Engine speed sensor P0336
•
signal not valid
Error cause
•
Probable bad contact in the electric circuit detected at PIN 20 - 35 of the ENGINE connector
Troubleshooting
•
Check the electric circuit is in good conditions and the flywheel teeth cleaning and correct
positioning of the sensor in its own housing: if it is not, replace it. If it is OK, replace the
sensor
ELE SYS - 154
RSV4 Factory