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Home >> Mazda >> 2014 >> 3 SV, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Controls (6 Of 6) >> DTC P2251 00: Open Circuit Between A/F Sensor Terminal D And Pcm Terminal 1AB >> Repeatability Verification Procedure

Repeatability Verification Procedure

  1. Warm up the engine to allow the engine coolant temperature to reach 80 °C {176 °F} or more. 
  2. Start the engine and leave it idling for 1 min. 
    NOTE:
    • Match the engine coolant temperature in the recorded FREEZE FRAME DATA (Mode 2)/snapshot data, the vehicle speed, and engine speed values to the best extent possible while driving the vehicle.
  3. Try to reproduce the malfunction by driving the vehicle for 5 min based on the values in the FREEZE FRAME DATA (Mode 2)/snapshot data.
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