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Catalyst Monitor Repair Verification Drive Cycle

  1. Refer to and complete the vehicle check and preparation before initiating the following repair verification steps. See VEHICLE CHECK/PREPARATION .
  2. Start the engine and drive the vehicle for 25 minutes:
    • Drive in stop-and-go traffic for 20 minutes, include 6 different constant speeds between 25 and 45 MPH (40 and 72 km/h).
    • Drive on expressway or highway for an additional 5 minutes.
  3. Repeat quick test. See QUICK TEST .
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