5. Check Injector Output Signal Circuit For Open And Short

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between injector terminal 2 and ECM terminals 21, 22, 23, 40, 41, 42, 44, 63. Refer to Wiring Diagram.
   1. Continuity should exist. 
4. Also check harness for short to ground and short to power.

OK or NG 

OK >> GO TO 6. CHECK INJECTOR .

NG >> Repair open circuit or short to ground or short to power in harness or connectors.