Electronic Control Unit - MOTO GUZZI CALIFORNIA JACKAL Werkstatt-Handbuch

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F
UEL PUMP RELAY CIRCUIT
When on the Dashboard Monitor page the item Fuel
Pump Relay displays an error, this means that the power
supply circuit for the injection to the ECU is interrupted;
this means that:
• The fuel pump relay is defective: replace the relay as
described in chapter 12 in this section;
• There is an interruption in the injection supply circuit
(other errors in the injection supply system should
appear)
• On the rare occasion that the circuit inside the ECU is
interrupted, replace the ECU; replacement must be
carried out following the procedures described in
chapter 13 in this section.
If the fuel pump does not work, it is useful to test the fuel
pump relay circuit; if the test result is positive and the
pump does not start, it is faulty and must be replaced as
described in chapter 3 in this section. If the test result is
negative, go back to the previously illustrated cases.
E C U
LECTRONIC ONTROL
When, on the Dashboard Monitor page, an error is
displayed in the following items: ECU microP. ECU
EPROM, ECU ROM,ECU RAM , this means that there is
possibly a fault in the ECU. In this case, carry out another
ECU resetting procedure; if the error is still displayed the
ECU must be replaced because it is faulty: follow the
procedures described in chapter 12 of this section.
T . .
IMING AND ENGINE R P
When on the Dashboard Monitor page the Crank/Cam
item displays an error, this means that the electric circuit
going from the engine r.p.m/timing sensor to the ECU is
interrupted; this means that:
• The sensor is damaged or the wires are interrupted:
check the connections and the sensor's resistance. If
the sensor is damaged, replace it following the
instructions in chapter 16 of this section.
• On the rare occasion that the circuit inside the ECU is
interrupted, replace the ECU.
F
UEL SYSTEM
NIT
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M SENSOR CIRCUIT