Air Mix Control Motor Test

Special Tools Required 

Backprobe Set 07SAZ-001000A (2)

1. Open the glove box. While holding the glove box, release the glove box stops on each side from the dashboard by pushing them in, then lower the glove box (see step 1 on GLOVE BOX STRIKER REPLACEMENT ).
2. 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.
3. Connect battery power to air mix control motor terminal No. 1, and ground terminal No. 2; 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. When the air mix control motor stops running, disconnect battery power immediately.
   Fig 1: Identifying Air Mix Control Motor Connector Terminal

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
4. If the air mix control motor did not run in step  3, remove it (see AIR MIX CONTROL MOTOR REPLACEMENT ), 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 (see AIR MIX CONTROL MOTOR REPLACEMENT ).
   • If the linkage or door sticks or binds, repair them as needed.
   • If the air mix control motor runs smoothly, go to step 5.
5. Measure the resistance between terminals No. 5 and No. 7. It should be between 4.2 to 7.8 kΩ.
6. Reconnect the air mix control motor 7P connector, then turn the ignition switch to ON (II).
7. Using the backprobe set, measure the voltage between No. 3 and No. 5 terminals.

   Max Cool: About 1.0 V 

   Max Hot: About 4.0 V 

8. If either the resistance or voltage readings are not as specified, replace the air mix control motor (see AIR MIX CONTROL MOTOR REPLACEMENT ).