APRILIA RSV4 RR 2017 Service Station Manual page 193

RSV4 RR-RF
connector of the throttle body and the control unit connector and check cable continuity; if
there is no continuity, restore the cable harness. If there is continuity, with the throttle body
connector connected, check that the resistance, from the throttle control unit connector,
between PIN 3 and 15 is within 1 and 2.5 Ohm; if not ok replace the throttle body, if ok check
that the throttle body is not mechanically blocked: if blocked, remove the cause or replace
the body, if not blocked replace the control unit
DIAGNOSTIC TOOL: LOGIC ERRORS
Rear bank throttle valve position potentiometer sensor P0121
•
Signal not plausible
Error cause
•
Signal outside the specified value determined based on the values of the intake pressure
Troubleshooting
•
Check the parameter of the Potentiometer 1 front Throttle (voltage) to get which signal the
control unit receives and to compare it to the Potentiometer 1 rear Throttle (voltage). Check
the throttle body connector and the control unit connector. Check that cable resistance be-
tween the throttle body connector (PIN 1) and the control unit (PIN48) is a few tenths of an
Ohm. Otherwise, restore the wiring harness if ok replace the complete throttle body
Rear throttle valve potentiometer CF2 P2121
•
Signal not plausible
Error cause
•
Signal outside the specified value determined based on the values of the intake pressure
Troubleshooting
•
Check the parameter of the Potentiometer 2 front Throttle (voltage) to get which signal the
control unit receives and to compare it to the Potentiometer 2 rear Throttle (voltage). Check
the throttle body connector and the control unit connector. Check that the resistance of the
cable between the throttle body connector (PIN 4) and the control unit (PIN 50) is a few
tenths of ohm. Otherwise, restore the wiring harness if ok replace the complete throttle body
Throttle valve position potentiometers P2135
•
Signal not congruent
Error cause
•
Potentiometer 1 and potentiometer 2 do not provide a congruent value: the sum of the two
voltages must be constant. The cause could be the malfunction of one of the two sensors
or an abnormal resistance in one of the two circuits
Troubleshooting
Electrical system
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