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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 414 (Engine Control System - DTC) >> DTC P1274, P1284: A/F Sensor >> Diagnostic Procedure >> 4. Check Harness Connector

4. Check Harness Connector

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch OFF.
  2. Disconnect A/F sensor 1 harness connector.
    Fig 1: Disconnect A/F Sensor 1 Harness Connector
    G00877525Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Check harness connector for water.

    Water should not exit. 

OK or NG 

  1. OK: GO TO 5.
  2. NG: Repair or replace harness connector.