Performance Parameter; Fault Diagnosis - Segway VILLIAN SSV Series Service Manual

ELECTRICAL SYSTEM
B

Performance parameter

project
Static fl ow
Dynamic fl ow
Jet angle
Coil resistance
Hydraulic leak

Fault diagnosis

ECU only performs fault diagnosis for the fuel injector
drive stage. When the fuel injector drive stage is short-
circuited or overloaded to the battery voltage, short-
circuited to the ground, or disconnected, the fault fl ag is
set.When the injector fails, the engine cannot start without
C
the injector or the injector keeps injecting fuel, causing
the cylinder to flood, etc. The common fault codes are
shown in the fault summary table.
Fuel injector failure inspection:
A
◆ Check that the connectors are well connected.
◆ Check whether the wiring harness and injector pins
are bent or deformed.
◆ Check whether the fuel injector cap (at 【C】 in the
left picture) and the fuel pipe are reliably connected.
◆ Unplug the connector and check the coil resistance
between pins 【A】 and 【B】.
◆ Check the resistance between the pins (【A】 on
the left) and the main relay.
◆ Check the resistance between the pins (B in the left
picture) and the ECU pins (see ECU pin defi nition).
!
When removing the oil pipe, there is high-pressure oil in
the oil pipe, pay attention to fi re safety and be careful to
spray it into your eyes.
14 - 54
parameter
207.8g/min
6.65mg/stroke（冲程）
23°
12Ω
3
1.8mm /min