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Home >> Infiniti >> 2004 >> G35 Base, 2D Coupe, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 2004 - Engine Control System - Coupe >> DTC P1122: Electric Throttle Control Function >> Diagnostic Procedure >> 3. Check Throttle Control Motor Relay Input Signal Circuit-II
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3. Check Throttle Control Motor Relay Input Signal Circuit-II

  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Disconnect IPDM E/R harness connector E8.
  4. Check continuity between ECM terminal 3 and IPDM E/R terminal 42.

    Refer to Wiring Diagram.

    1. Continuity should exist. 
  5. Also check harness for short to ground and short to power.

OK or NG 

OK: GO TO 5 .

NG: GO TO 4.