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Mode Control Motor Testing

CAUTION: During this procedure, if polarity of test battery is reversed, the mode control motor may be damaged. Also, DO NOT run motor for more than a few seconds.
  1. Disconnect mode control motor connector. Connect battery positive lead to terminal No. 2 and ground terminal No. 1. See Fig 1 . Mode control motor should run smoothly and stop at vent position. If it does not, reverse connections. Mode control motor should run smoothly and stop at defrost position.
  2. With mode control motor running as outlined in step 1), individually check for continuity between terminals No. 3, 4, 5 and 6 and terminal No. 7. There should be continuity for a moment.
  3. If mode control motor did not run in step 1), remove it and check linkage for smooth operation. If linkage operates smoothly, replace mode control motor.
Fig 1: Air Mix, Mode & Recirculation Control Motor Terminals
G98F04294Courtesy of AMERICAN HONDA MOTOR CO., INC.
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