MOTO GUZZI Norge 1200 Service Manual page 229

Norge 1200
Braking system
Checks: check the speed sensor signal (0.5 or 1 V) on the brown cable between pin 1 of the rear speed
sensor connector and pin 19 of the ABS module connector. If there is not enough voltage, check cable
continuity from the ABS module to the speed sensor connector and make sure that the cable is earthed
insulated. Solution: if the cable is interrupted or earthed, restore wiring.
If the cable harness is not damaged, it means that the speed sensor is defective or the circuit between
sensor and connector is interrupted: replace the speed sensor.
FRONT / REAR SPEED SENSOR COHERENCE AXONE ERROR
Description of the defect: the control unit detects an abnormal condition in the signals coming from the
speed sensors: for example, disturbances, signal intensity reduced, speed difference between the two
wheels for a certain period of time, etc. Checks: check the correct distance between speed sensor and
tone wheel. Solution: restore the correct distance between speed sensor and tone wheel.
If functioning is correct, proceed to the next check
Checks: check the tone wheel is not distorted (it should not be deformed or damaged). Solution: replace
tone wheel
If functioning is correct, proceed to the next check
Checks: check the speed sensor position and integrity. Solution: position the speed sensor correctly or
replace it.
If functioning is correct, proceed to the next check.
Checks: check tyres for wear (there should not be much difference between front and rear) and for
correct pressure. Solution: use tyres with the specified tyre wear condition and pressure.
If functioning is correct, proceed to the next check
Checks: make sure that "the failure" has not been caused by using the vehicle in sport competitions.
Solution: for example, avoid prolonged rearing up on the back wheel
AXON ERROR FRONT / REAR INLET / OUTLET VALVE
Description of the defect: the control unit detects a failure in the valve operation. Checks: make sure
that the voltage in pin 3 of the ABS control unit connector is 12 V (battery voltage) and that the connector
is not rusty. Solution: restore wiring or the connector
If functioning is correct, proceed to the next check
Checks: no control is possible. Solution: replace ABS control unit.
ABS MOTOR PUMP AXONE ERROR
Description of the defect: the control unit detects a failure in the ABS pump operation. Checks: make
sure that the voltage in pin 2 of the ABS control unit connector is 12 V (battery voltage), that there is
earth connection in pins 1 and 4 of the ABS control unit connector and that the connector is not rusty.
Solution: restore wiring or the connector.
If functioning is correct, proceed to the next check
Checks: no control is possible. Solution: replace ABS control unit.
ABS VALVE RELAY AXONE ERROR
in case of lack of power supply, the error is frequently not detected immediately.
BRAK SYS - 11