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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> 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: Identifying Throttle Control Motor Relay
    G00796235Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Check voltage between throttle control motor relay terminals 2, 5 and ground with CONSULT-II or tester.
    Fig 2: Checking Voltage Between Throttle Control Motor Relay Terminals 2, 5 & Ground
    G00796236Courtesy of NISSAN MOTOR CO., U.S.A.

    Voltage: Battery voltage 

OK or NG 

  1. OK: GO TO 5. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT .
  2. NG: GO TO 4.