Mode Control Motor Test

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2014 Honda Ridgeline, 2013 Honda Ridgeline, 2012 Honda Ridgeline, 2011 Honda Ridgeline, and 2010 Honda Ridgeline. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before testing, check for HVAC DTCs (see GENERAL TROUBLESHOOTING INFORMATION ).

Disconnect the 7P connector from the mode control motor.
NOTE: Incorrectly applying power and ground to the mode control motor will damage it. Follow the instructions carefully.
Connect battery power to terminal No. 1 of the mode control motor, and ground terminal No. 2; the mode control motor should run smoothly, and stop at Vent. If it doesn't, reverse the connections; the mode control motor should run smoothly, and stop at Defrost. When the mode control motor stops running, disconnect battery power immediately.

Fig 1: Mode Control Motor Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If the mode control motor did not run in step 2, remove it, then check the mode control linkage and doors for smooth movement.
- If the linkage and doors move smoothly, replace the mode control motor (see MODE CONTROL MOTOR TEST ).
- If the linkage or doors stick or bind, repair them as needed.
- If the mode control motor runs smoothly, Go to step 4.
Use a digital multimeter with an output of 1 mA or less at the 20 kΩ range. With the mode control motor running as in step 2, check for continuity between terminal No. 7 and terminals No. 3, 4, 5, and 6 individually. There should be continuity for a moment at each terminal as the motor moves through its travel.
If there is no continuity for a moment at each terminal, replace the mode control motor (see MODE CONTROL MOTOR TEST ).