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EGR Monitor and Readiness Code: Procedure

  1. Connect the HDS to the DLC.
  2. Start the engine.
  3. Drive at a steady speed with the A/T in D position or MAT in 4th gear, at 80-100 km/h (50-62 mph) or above for more than 10 seconds.
  4. With the A/T in D position or M/T in 4th gear, decelerate from 100 km/h (62 mph) or above by completely releasing the throttle for at least 5 seconds. If the engine is stopped during this procedure, go to step  3 and do the procedure again.
  5. Check the OBD status screen for DTC P0401 in the DTC's MENU with the HDS.
    • If it is PASSED, readiness is complete.
    • If it is not PASSED, go to step  3 and retest.