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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P2127, P2128: App Sensor >> Diagnostic Procedure >> 2. Check App Sensor 2 Power Supply Circuit
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2. Check App Sensor 2 Power Supply Circuit

  1. Disconnect electric throttle control actuator harness connector.
  2. Turn ignition switch ON.
    Fig 1: Identifying Electric Throttle Control Actuator Harness Connector
    G00796595Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Check voltage between electric throttle control actuator terminal 10 and ground with CONSULT-II or tester.
    Fig 2: Checking Voltage Between Electric Throttle Control Actuator Terminal 10 & Ground
    G00796596Courtesy of NISSAN MOTOR CO., U.S.A.

    Voltage: Approximately 2.5V 

OK or NG 

  1. OK: GO TO 3.
  2. NG: Repair open circuit or short to ground or short to power in harness or connectors.