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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P1121: Electric Throttle Control Actuator >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2002 Nissan Maxima and 2002 Infiniti I35. However, it is still accessible from the selected car via links, so may be relevant.

Malfunction is detected when:

  1. Electric throttle control actuator does not function properly due to the return spring malfunction.
  2. Throttle valve opening angle in fail-safe mode is not in specified range.
  3. ECM detects the throttle valve is stuck open.

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