8. Check Throttle Position Sensor Input Signal Circuit For Open And Short

1. Check harness continuity between ECM terminal 50 and electric throttle control actuator terminal 14, ECM terminal 69 and electric throttle control actuator terminal 3. Refer to Wiring Diagram.
   1. Continuity should exist. 
2. Also check harness for short to ground and short to power.

OK or NG 

OK >> GO TO 9. CHECK THROTTLE POSITION SENSOR 

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