LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 2012 >> TL Base >> Repair and Diagnosis >> Engine Performance >> System >> Fuel And Emissions Systems >> How to Set Readiness Codes >> EGR Monitor and Readiness Code >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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, or M/T in 4th at 50- 62 mph (80- 100 km/h) or above for more than 10 seconds.
  4. With the A/T in D or M/T in 4th, 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.
scientia non olet · About LEMON Manuals