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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0132, P0152: Ho2S1 >> Diagnostic Procedure >> 5. Check Ho2S1 Connector For Water
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5. Check Ho2S1 Connector For Water

  1. Turn ignition switch OFF.
  2. Disconnect heated oxygen sensor 1 harness connector.
  3. Check connectors for water.

    Water should not exist. 

OK or NG 

  1. OK: GO TO 6.
  2. NG: Repair or replace harness or connectors.
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