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Home >> Suzuki >> 2006 >> Swift + >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls - 1.6L (L91) - DTC P0016 To DTC P0404 >> DTC P0125 or P0128 >> Circuit/System Verification
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Circuit/System Verification

  1. Verify that the engine coolant level is correct.
    • If the engine coolant is not at the correct level, refer to Loss of Coolant .
  2. Verify that the engine coolant temperature is at the normal operating temperature.
    • If the engine coolant temperature is below normal operating temperature, refer to Thermostat Diagnosis .
  3. Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records. DTC P0125 or P0128 should not set.
  4. If the vehicle passes the Circuit/System Verification Test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records List.
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