Front Air Mix Control Motor Test
WARNING: This page is about a different car, the 2008 Honda Pilot, 2007 Honda Pilot, and 2006 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the 7P connector from the air mix control motor.NOTE: Incorrectly applying power and ground to the air mix control motor will damage it. Follow the instructions carefully.
- Connect battery power to the No. 1 terminal of the air mix control motor, and ground the No. 2 terminal; the air mix control motor should run, and stop at Max Cool. If it doesn't, reverse the connections; the air mix control motor should run, and stop at Max Hot.
- If the air mix control motor does not run in step 2, remove it, then check the air mix control linkage and door for smooth movement.
- If the linkage and door move smoothly, replace the air mix control motor.
- If the linkage or door sticks or binds, repair them as needed.
- If the air mix control motor runs smoothly, go to step 4.
- Measure the resistance between the No. 5 and No. 7 terminals. It should be between 4.2 to 7.8 k Ω.
- Reconnect the air mix control motor 7P connector, then turn the ignition switch ON (II).
- Using the backprobe set, measure the voltage between the No. 3 and No. 5 terminals.
Max Cool - about 0.7 V
Max Hot - about 4.2 V
- If either the resistance or voltage readings are not as specified, replace the air mix control motor.