APRILIA Tuono V4 1100 Factory Service Station Manual page 209

Tuono V4 1100 Factory
DIAGNOSTIC TOOL: ACTIVATIONS
Coil 1:
The injection relay (no. 33 in the electrical circuit diagram, placed under the saddle next to the battery
positive, CHECK, however, the identification of the relay with the colour of the cables) is energised for
5 seconds and the Brown/Yellow cable of the coil is closed to ground for 2 ms per each second. Dis-
connect the 4-way connector of the fuel pump to be able to hear the relay and injector activation.
Electrical continuity is required in the wiring for the relay to activate correctly: no errors are generated
in case of no activation.
Coil 2:
The injection relay (no. 33 in the electrical circuit diagram, placed under the saddle next to the battery
positive, CHECK, however, the identification of the relay with the colour of the cables) is energised for
5 seconds and the Brown/Red cable of the coil is closed to ground for 2 ms per each second. Disconnect
the 4-way connector of the fuel pump to be able to hear the relay and injector activation. Electrical
continuity is required in the wiring for the relay to activate correctly: no errors are generated in case of
no activation.
Coil 3:
The injection relay (no. 33 in the electrical circuit diagram, placed under the saddle next to the battery
positive, CHECK, however, the identification of the relay with the colour of the cables) is energised for
5 seconds and the Brown/Green cable of the coil is closed to ground for 2 ms per each second. Dis-
connect the 4-way connector of the fuel pump to be able to hear the relay and injector activation.
Electrical continuity is required in the wiring for the relay to activate correctly: no errors are generated
in case of no activation.
Coil 4:
The injection relay (no. 33 in the electrical circuit diagram, placed under the saddle next to the battery
positive, CHECK, however, the identification of the relay with the colour of the cables) is energised for
5 seconds and the Brown/Violet cable of the coil is closed to ground for 2 ms per each second. Dis-
connect the 4-way connector of the fuel pump to be able to hear the relay and injector activation.
Electrical continuity is required in the wiring for the relay to activate correctly: no errors are generated
in case of no activation.
DIAGNOSTIC TOOL: ELECTRICAL ERRORS
P0351 Coil 1
Electrical diagnosis:
•
Short circuit to positive / short circuit to negative, open circuit.
Error cause:
•
Short-circuit to positive: an excessive voltage was detected at PIN 28 of the ENGINE con-
nector. If open circuit, short circuit to negative: a voltage equal to zero was detected at PIN
28 of the ENGINE connector.
Troubleshooting:
Electrical system
ELE SYS - 209