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Home >> Infiniti >> 2003 >> Q45 >> Repair and Diagnosis >> External Pages >> Different car >> Section 201 (Engine Control System) >> DTC P1122: Electric Throttle Control Function >> Diagnostic Procedure >> 5. Check Throttle Control Motor Relay Input Signal Circuit For Open And Short

5. Check Throttle Control Motor Relay Input Signal Circuit For Open And Short

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. Check continuity between ECM terminal 157 and throttle control motor relay terminal 5.

    Refer to Wiring Diagram.

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

OK or NG 

OK : GO TO 7.

NG : GO TO 6.

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