MDX V6-3471cc 3.5L (2002)
Air Door Actuator / Motor: Testing and Inspection
Rear Air Mix Control Motor Test
Rear Air Mix Control Motor Test
1. Disconnect the 7P connector from the rear air mix control motor.
2. Connect battery power to the No.1 terminal of the rear air mix control motor, and ground the No.2 terminal; the rear air mix control motor should
run, and stop at Max Hot. If it doesn't, reverse the connections; the rear air mix control motor should run, and stop at Max Cool. If the rear air mix
control motor does not run, remove it, then check the rear air mix control linkage and door for smooth movement.
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If the linkage and door move smoothly, replace the rear air mix control motor.
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If the linkage or door is sticks or binds, repair them as needed.
3. Measure the resistance between the No.5 and No.7 terminals. It should be between 4.2 k to 7.8 kOhm.
4. Measure the resistance between the No.3 and No.5 terminals.
Max Cool - 3.52 k to 6.55 kOhm
Max Hot - 0.58 k to 1.09 kOhm
