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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P2138: App Sensor >> Diagnostic Procedure >> 2. Check APP Sensor Power Supply Circuit
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2. Check APP Sensor Power Supply Circuit

  1. Disconnect electric throttle control actuator harness connector.
  2. Turn ignition switch ON.
    Fig 1: Locating Electric Throttle Control Actuator
    G00761312Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Check voltage between electric throttle control actuator terminals 7, 10 and ground with CONSULT-II or tester.
Fig 2: Checking Voltage Between Electric Throttle Control Actuator Terminals 7, 10 & Ground (1 Of 2)
G00761313Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Checking Voltage Between Electric Throttle Control Actuator Terminals 7, 10 & Ground (2 Of 2)
G00761314Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: GO TO 3.

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