Air Mix Control Motor Test
Special Tools Required
Image Description/Tool Number
310254.png Backprobe Set 07SAZ-001000A

NOTE:
The air mix control motor and the driver's air mix control motor are the same parts.
Before testing the motor, check for HVAC control DTCs.

2. Air Mix Control Motor - Test
1.
Disconnect the air mix control motor connector.

Incorrectly applying power and ground to the air mix control motor will damage it. Follow the instructions carefully.
2.
Connect 12 volt battery power to terminal No. 7 of the air mix control motor, and ground terminal No. 6; the air mix control motor should run, and stop at MAX HOT. If it does not, reverse the connections; the air mix control motor should run, and stop at MAX COOL. When the air mix control motor stops running, disconnect 12 volt battery power immediately.
3.
If the air mix control motor did 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, go to step 4.
If the linkage or door sticks or binds, repair them as needed.
4.
Measure the resistance between terminals No. 1 and No. 3. It should be between 4.2 to 7.8 k?.
5.
Reconnect the air mix control motor connector.
6.
Turn the vehicle to the ON mode.
7.
Using the backprobe set (07SAZ-001000A), measure the voltage between terminals No. 1 and No. 2.
MAX COOL:
About 0.5 V
MAX HOT:
About 4.0 V
8.
If either the resistance or the voltage readings are not as specified, replace the air mix control motor.

3. All Removed Parts - Install
1.
Install the parts in the reverse order of removal, and note these items: