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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1128: Throttle Control Motor >> Diagnostic Procedure >> 2. Check Throttle Control Motor Output Signal Circuit For Open Or Short
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2. Check Throttle Control Motor Output Signal Circuit For Open Or Short

  1. Disconnect electric throttle control actuator harness connector.
    Fig 1: Identifying Electric Throttle Control Actuator
    G00796261Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Disconnect ECM harness connector.
  3. Check harness continuity between the following terminals.
    Fig 2: Inspecting Conditions Chart
    G00796260Courtesy of NISSAN MOTOR CO., U.S.A.

    Refer to WIRING DIAGRAM .

  4. Also check harness for short to ground and short to power.

OK or NG 

  1. OK: GO TO 3.
  2. NG: Repair or replace.