Suzuki DL650 Service Manual page 203

Fl SYSTEM DI A GNOSI S 4-43
Step 2
1) Disconnect the injector couplers.
2) Turn the ignition switch ON.
3) Measure the injector voltage between Y/R wire (No.1 injector
coupler and No.2 injector coupler) and ground.
lnjector voltage: Battery voltage
NOTE:
lnjector voltage can
(@ YIR
-
detected
@
Ground)
only
2
seconds after ignition
switch is turned ON.
a
09900-25008: Multi circuit tester set
-
i m
Tester knob indication: Voltage (-)
Is the voltage OK?
YES
NO
GrNV or Gr/B wire open or shorted to ground, or
poor
@
or
@
connection.
If wire and connection are OK, intermittent trou-
ble or faulty ECM.
Recheck each terminal and wire harness for
open circuit and poor connection.
Inspect the fuel pump relay. (-5-10)
-