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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control System >> DTC P1122: Electric Throttle Control Function >> Diagnostic Procedure >> 10. Check Throttle Control Motor Output Signal Circuit For Open Or Short
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10. Check Throttle Control Motor Output Signal Circuit For Open Or Short

  1. Turn ignition switch OFF.
  2. Disconnect electric throttle control actuator harness connector.
  3. Disconnect ECM harness connector.
  4. Check harness continuity between the following terminals.

    Refer to Wiring Diagram.

    Fig 1: Checking Throttle Control Motor Output Signal Circuit For Open Or Short
    G00760538Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Also check harness for short to ground and short to power.

OK or NG 

OK : GO TO 11.

NG : Repair or replace.