27. 1A diode
28. 1A diode
35. Stop button on rear brake
36. Stop button on front brake
54. Electronic ignition device (Vehicle connector)
WARNING
ALL CONTINUITY TESTS MUST BE CARRIED OUT WITH THE CORRESPONDING CONNECTORS
DISCONNECTED.
If the starter motor does not work, proceed as follows:
1) Check the starter motor ground connection.
2) Check the continuity of the Red cable between the starter motor and the start-up remote control
switch. Also check continuity between the latter and the battery.
3) Check the start-up remote control switch.
4) Check that the Black cable of the start-up remote control switch is earthed.
5) Check the continuity of the Orange-Blue cable between the start-up remote control switch, start-up
remote control switch relay and the start-up maintenance relay.
6) Check the start-up remote control switch relay and the start-up maintenance relay.
7) Check 40A fuse, fuse No. 2, the continuity of the Red-Black cable connecting them and the continuity
of the Blue cable between the fuse box (fuse No. 2) and the start-up remote control switch relay.
8) Check the start-up maintenance relay ground connection (Black cable).
9) Check the continuity of the following cables, restore them if necessary:
- between the starter button Grey-Black cable (negative multimeter probe) and the start-up maintenance
relay Grey-White cable (positive probe). Also check continuity between the latter and pin 28 of the
control unit vehicle-side connector.
- between the stand button White-Green cable (negative multimeter probe) and pin 38 of the control
unit vehicle-side connector, (positive multimeter probe).
- between stop buttons, start-up remote control switch relay and pin 23 of the control unit vehicle-side
connector (Grey-Green cable).
- between pin 1 of the control unit vehicle-side connector, start-up remote control switch relay and start-
up maintenance relay (Orange-White cable).
10) Check the control unit power supply:
- Check there is voltage between pin 4 of the control unit vehicle-side connector and ground. If there is
no voltage, check the continuity of the cable harness and fuse No. 6.
- With the key switch set to «ON», check there is voltage between pin 17 of the control unit vehicle-side
connector and ground. If there is no voltage, check the continuity of the cable harness, fuses No. 1 and
9, the main relay and the key switch contacts.
11) Check the fuse No. 8 and the continuity of the Purple-White cable in the fuse box output with the
stop buttons.
GP 800 i.e. Electrical system
ELE SYS - 37
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