LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 412 (Engine Control System) >> DTC P0138, P0158: Ho2S2 >> Diagnostic Procedure >> 2. Check Ho2S2 Ground Circuit For Open And Short

2. Check Ho2S2 Ground 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. Disconnect heated oxygen sensor 2 harness connector.
    Fig 1: Identifying HO2S2 Harness Connector
    G00795874Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Check harness continuity between HO2S2 terminal 4 and ground. Refer to WIRING DIAGRAM .

    Continuity should exist. 

  3. Also check harness for short to power.

OK or NG 

  1. OK: GO TO 4. CHECK HO2S2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT .
  2. NG: GO TO 3.
scientia non olet · About LEMON Manuals