Diesel Data: Automotive Repair

Passenger's Air Mix Control Motor Test (With Climate Control)




Passenger's Air Mix Control Motor Test

Special Tools Required

- Backprobe Set 07SAZ-001000A (2)

NOTE: Before testing the motor, check for climate control DTCs. Initial Inspection and Diagnostic Overview

1. Disconnect the 7P connector from the passenger's air mix control motor.

NOTICE
Incorrectly applying power and ground to the passenger's air mix control motor will damage it. Follow the instructions carefully.


2. Connect battery power to terminal No. 1 of the passenger's air mix control motor, and ground terminal No. 2; the passenger's air mix control motor should run, and stop at Max Cool. If it does not, reverse the connections; the passenger's air mix control motor should run, and stop at Max Hot. When the passenger's air mix control motor stops running, disconnect battery power immediately.





3. If the passenger's air mix control motor did not run in step 2 Passenger's Air Mix Control Motor Test (With Climate Control), remove it, then check the passenger's air mix control linkage and the door for smooth movement.

- If the linkage and door move smoothly, replace the passenger's air mix control motor Passenger's Air Mix Control Motor Replacement (With Climate Control).
- If the linkage or door sticks or binds, repair them as needed.
- If the passenger's air mix control motor runs smoothly, go to step 4 Passenger's Air Mix Control Motor Test (With Climate Control).

4. Measure the resistance between terminals No. 5 and No. 7 of the passenger's air mix control motor. It should be between 4.2 and 7.8 kOhms.

5. Reconnect the passenger's air mix control motor 7P connector, then turn the ignition switch to ON (II).

6. Using the backprobe set (07SAZ-001000A), measure the voltage between the No. 3 and terminals No. 5.





7. If either the resistance or the voltage readings are not as specified, replace the passenger's air mix control motor Passenger's Air Mix Control Motor Replacement (With Climate Control).