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EGR Monitor and Readiness Code: Procedure

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect the HDS to the DLC.
  2. Start the engine.
  3. Drive at a steady speed, with the transmission in D, at 50-62 mph (80-100 km/h) or above for more than 10 seconds.
  4. With the transmission in D, decelerate from 62 mph (100 km/h) 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 DTCs MENU with the HDS.
    • If it is passed, readiness is complete.
    • If it is not passed, go to step  3 and retest.
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