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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Automatic Transmission - 5ET50 (MKE)) >> Diagnostic Information and Procedures >> DTC P0721: Output Speed Sensor Performance >> Circuit/System Testing

Circuit/System Testing

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  1. Vehicle ON.
  2. 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 data.
  3. Verify DTC P7021 is not set.
    • If the DTC is not set 
  4. All OK
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