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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0122, P0123: TP Sensor >> Diagnostic Procedure >> 2. Check Throttle Position Sensor 2 Power Supply Circuit
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2. Check Throttle Position Sensor 2 Power Supply Circuit

  1. Disconnect electric throttle control actuator harness connector.
  2. Turn ignition switch ON.
  3. Check voltage between electric throttle control actuator terminal 1 and ground with CONSULT-II or tester.
    1. Voltage: Approximately 5V 

OK or NG 

OK: GO TO 3.

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

Fig 1: Checking voltage between electric throttle control actuator terminal 1 & ground
G00760459Courtesy of NISSAN MOTOR CO., U.S.A.