Suzuki GSX-R1000K5 Service Manual page 238

4-78 FI SYSTEM DIAGNOSIS
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?
YES Go to Step 2.
NO Replace the injector with a new one. (5-23)
6) After repairing the trouble, clear the DTC using SDS tool.
(4-27)
Step 2
1) Turn the ignition switch ON.
2) Measure the injector voltage between Y/R wire and ground.
 Injector voltage: Battery voltage
NOTE:
Injector voltage can be detected only 3 seconds after ignition
switch is turned ON.
 09900-25008: Multi-circuit tester set
 Tester knob indication: Voltage ()
Is the voltage OK?
• Lg wire open or shorted to ground, or poor x
connection (#1 cylinder side)
• Lg/W wire open or shorted to ground, or poor w
connection (#2 cylinder side)
• Lg/G wire open or shorted to ground, or poor v
connection (#3 cylinder side)
• Lg/BI wire open or shorted to ground, or poor u
YES
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.
3) After repairing the trouble, clear the DTC using SDS tool.
(4-27)
(+ Y/R – - Ground)
1
2
2
ECM coupler (Harness side)
(Black)
V
(Gray)