Suzuki VZR1800 2007, Service Manual

Page: 270 / 609

FI SYSTEM DIAGNOSIS 5-69
5) If OK, then check the continuity between each terminal and
ground.
$
STP sensor continuity:
∞ Ω
(Infinity)
!
09900-25008: Multi-circuit tester set
%
Tester knob indication: Resistance (
Ω
)
Are the resistance and continuity OK?
6) After repairing the trouble, clear the DTC using SDS tool.
(
#
5-26)
Step 2
1) Turn the ignition switch ON.
2) Measure the injector voltage between Y/R wire and ground.
$
Injector voltage: Battery voltage
(
+
Y/R –
-
Ground)
NOTE:
Injector voltage can be detected only 3 for seconds after ignition
switch is turned ON.
!
09900-25008: Multi-circuit tester set
&
Tester knob indication: Voltage (
'
)
Is the voltage OK?
3) After repairing the trouble, clear the DTC using SDS tool.
(
#
5-26)
YES Go to Step 2.
NO Replace the injector with a new one. (
#
6-22)
YES
• Gr/B wire open or shorted to ground, or poor
g
connection.
(Front cylinder side)
• Gr/W wire open or shorted to ground, or poor
h
connection.
(Rear cylinder side)
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO Open circuit in the Y/R wire
1
2
V
ECM coupler (Harness side)
2
(Black) (Gray)