Recirculation Control Motor Test

WARNING: This page is about a different car, the 2008 Acura TL and 2007 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before testing, check for HVAC DTCs (see HOW TO CHECK FOR DTCS WITH THE HDS ).

Disconnect the 5P connector from the recirculation control motor.
NOTE: Incorrectly applying power and ground to the recirculation control motor will damage it. Follow the instructions carefully.
Connect battery power to the No. 5 terminal of the recirculation control motor, and ground the No. 1 and No. 2 terminals; the recirculation control motor should run smoothly. To avoid damaging the recirculation control motor, do not reverse power and ground. Disconnect the No. 1 or No. 2 terminals from ground; the recirculation control motor should stop at Fresh (when the No. 1 terminal is disconnected) or Recirculate (when the No. 2 terminal is disconnected). Don't cycle the recirculation control motor for a long time.

Fig 1: Identifying Recirculation Control Motor Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If the recirculation control motor did not run in step 2, remove it, then check the recirculation control linkage and doors for smooth movement.
- If the linkage and doors move smoothly, replace the recirculation control motor (see RECIRCULATION CONTROL MOTOR REPLACEMENT ).
- If the linkage or doors stick or bind, repair them as needed.