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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 135 (On-Board Diagnostic - Engine Control (4 Of 5)) >> DTC P2237-00; Open Circuit Between A/F Sensor Terminal B And Pcm Terminal 1Ag >> Repeatability Verification Procedure

Repeatability Verification Procedure

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  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.
  3. Shift to 2nd gear and drive the vehicle for 1 min at a speed of 50 km/h {31 mph} or more.
    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.
  4. 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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