APRILIA RSV4 RR Service Station Manual page 243

RSV4 RR/RF
•
no signal.
Error cause
•
No signal is received from the instrument panel.
Troubleshooting
•
Check the connector of the instrument panel: if not OK, restore; if OK, check the continuity
of the two lines from the instrument panel connector to the VEHICLE connector of the Marelli
control unit: if not OK, restore the cable harness; if OK, replace the instrument panel.
CAN line towards instrument panel U1702.
•
Intermittent signal or communication error.
Error cause
•
Probable bad contact in the CAN line.
Troubleshooting
•
Check the Vehicle connector pins 66 and 80 and the vehicle-engine cable harness pins B2
and B3. If not OK, restore. If OK, check pins 26 and 27 and the instrument panel connector.
If not OK, restore. If OK, check overall operation of the Marelli control unit and instrument
panel: replace the affected component if you find any fault
CAN line toward Sensor Box U1722
•
Intermittent signal or communication error
Error cause
•
Probable bad contact in the CAN line.
Troubleshooting
•
Check the Vehicle connector pins 66 and 80 and the vehicle-engine cable harness pins B2
and B3. If not OK, restore. If OK, check pins 2 and 3 and the inertia sensor platform (Sensor
box) connector. If not OK, restore. If OK, check overall operation of the Marelli control unit
and inertia sensor platform (Sensor box): replace the affected component if any fault is
detected.
Failed CAN reception from instrument panel C1301
Error cause
•
No signal is received from the instrument panel.
Troubleshooting
•
Check the pins 26 and 27 of the instrument panel connector, and ABS control unit connector
pins 2 and 11. If NOT OK, restore. If OK, with key OFF disconnect the following: a) ABS
control unit connector, b) instrument panel connector and check the continuity across in-
strument panel connector pin 26 and ABS control unit connector pin 2. If NOT OK, replace
Electrical system
ELE SYS - 243