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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control System >> DTC P1122: Electric Throttle Control Function >> Diagnostic Procedure >> 3. Check Throttle Control Motor Relay Power Supply
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3. Check Throttle Control Motor Relay Power Supply

  1. Disconnect throttle control motor relay harness connector.
    Fig 1: Locating throttle control motor relay
    G00760536Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Check voltage between throttle control motor relay terminals 2, 3 and ground with CONSULT-II or tester.
    1. Voltage: Battery voltage 

OK or NG 

OK : GO TO 5.

NG : GO TO 4.

Fig 2: Checking voltage between throttle control motor relay terminals 2, 3 & ground
G00760537Courtesy of NISSAN MOTOR CO., U.S.A.