Suzuki VZ800 Service Manual page 224

6) 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.
Replace the injector with a new one.
NO
(6-22)
7) After repairing the trouble, clear the DTC using SDS tool.
(5-25)
Step 2
1) Turn the ignition switch ON.
2) Measure the injector voltage between Y/R wire A 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?
• Gr/W wire open or shorted to ground, or poor a
connection
(Front cylinder side)
• Gr/B wire open or shorted to ground, or poor ^
connection
(Rear cylinder side)
YES
• 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.
(5-25)
(+ Y/R A – - Ground)
1
2
2
ECM coupler (Harness side)
FI SYSTEM 5-67
V