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Home >> Infiniti >> 2004 >> I35 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P0031, P0032, P0051, P0052: Ho2S1 Heater >> DTC Confirmation Procedure >> Testing Condition:
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Testing Condition:

Before performing the following procedure, confirm that battery voltage is between 10.5V and 16V at idle. 

With CONSULT-II 

  1. Start engine and warm it up to normal operating temperature.
  2. Turn ignition switch OF and wait at least 10 seconds.
  3. Turn ignition switch ON and select DATA MONITOR mode with CONSULT-II.
    Fig 1: Displaying CONSULT-II DATA MONITOR Screen
    G00786498Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Start engine and run it for at least 6 seconds at idle speed.
  5. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  .