Suzuki GSX-R1000 2007, Service Manual

Page: 231 / 549

4-76 FI SYSTEM DIAGNOSIS
5) If OK, then check the continuity between each terminal and
ground.
Primary injector continuity:
∞ Ω
(Infinity)
\
09900-25008: Multi-circuit tester set
V
Tester knob indication: Resistance (
Ω
)
Are the resistance and continuity OK?
6) After repairing the trouble, clear the DTC using SDS tool.
( 4-28)
Step 2
1) Turn the ignition switch ON.
2) Measure the primary injector voltage between Y/R wire and
ground.
Primary injector voltage: Battery voltage
( Y/R – Ground)
NOTE:
Injector voltage can be detected only for 3 seconds after ignition
switch is turned ON.
\
09900-25008: Multi-circuit tester set
W
Tester knob indication: Voltage ( )
Is the voltage OK?
3) After repairing the trouble, clear the DTC using SDS tool.
( 4-28)
YES Go to Step 2.
NO
Replace the primary injector with a new one.
(
5-24)
YES
• Gr/W wire open or shorted to ground, or poor
G
connection (#1 cylinder side)
• Gr/B wire open or shorted to ground, or poor
F
connection (#2 cylinder side)
• Gr/Y wire open or shorted to ground, or poor
E
connection (#3 cylinder side)
• Gr/R wire open or shorted to ground, or poor
D
connection (#4 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)