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Home >> Infiniti >> 2003 >> Q45 >> Repair and Diagnosis >> External Pages >> Different car >> Section 201 (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

WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
  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.