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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 412 (Engine Control System) >> DTC P2127, P2128: App Sensor >> Diagnostic Procedure >> 4. Check App Sensor 1 Input Signal Circuit For Open And Short
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4. Check App Sensor 1 Input Signal Circuit For Open And Short

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check harness continuity between ECM terminal 117 and electric throttle control actuator terminal 11.

    Refer to WIRING DIAGRAM .

    Continuity should exist. 

  2. Also check harness for short to ground and short to power.

OK or NG 

  1. OK: GO TO 5.
  2. NG: Repair open circuit or short to ground or short to power in harness or connectors.