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HOMESERVICE MANUALSACURA2008CSX BASE, K20A3REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 17 (CLIMATE CONTROL SYSTEM)CLIMATE CONTROLRECIRCULATION CONTROL MOTOR TEST
2008 Acura CSX Base, K20A3

Recirculation Control Motor Test

2008 Acura CSX Base, K20A3SECTION Recirculation Control Motor Test
WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Before testing the motor, check for HVAC DTCs (see GENERAL TROUBLESHOOTING INFORMATIONΒ )
  1. Disconnect the 7P connector from the recirculation control motor
    NOTE: Incorrectly applying power and ground to the recirculation control motor will damage it Follow the instructions carefully
  2. Connect battery power to terminal No 1 of the recirculation control motor, and ground terminal No 2, the recirculation control motor should run smoothly, and stop at Recirculate If it doesn't, reverse the connections, the recirculation control motor should run smoothly, and stop at Fresh When the recirculation control motor stops running, disconnect battery power immediately.
    Fig 1: Identifying Recirculation Control Motor Connector Terminals
    G05988705Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. If the recirculation control motor did not run in step 2, remove it, then check the recirculation control linkage and door for smooth movement.
    • If the linkage and door move smoothly, replace the recirculation control motor (see RECIRCULATION CONTROL MOTOR REPLACEMENTΒ ).
    • If the linkage or door stick or bind, repair them as needed
    • If the recirculation control motor runs smoothly, go to step 4
  4. Use a digital multimeter with an output of 1 mA or less at the 20 kΞ© range Operate the recirculation control motor running as in step 2, and check for continuity between terminals No 3,4, and 5 and terminal No 7 individually There should be continuity for a moment at each terminal as the motor through its travel
  5. If there is no continuity for a moment at each terminal, replace the recirculation control motor (see RECIRCULATION CONTROL MOTOR REPLACEMENTΒ )
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