nsxb22060a.pdf

Vent Door Control Motor
Replacement
1. Remove the three screws and vent door control
motor.
VENT DOOR CONTROL
MOTOR
2. Install the vent door control motor in the reverse
order of removal. Then apply battery voltage, and
watch the door move.
• Make sure that the vent door moves smoothly
without binding.
• Make sure the motor doesn’t pull the vent door
too far.
Test
1. Connect battery power to the No. 1 terminal of the
vent door control motor, then connect ground to the
No. 2 terminal; the vent door control motor should
run, and stop at CLOSE.
If it doesn’t, reverse the connections; the vent door
control motor should run, and stop at OPEN.
NOTE: If the vent door control motor does not run,
remove it, and check the vent door control linkage
and door for smooth movement. If the vent door
control linkage and door move smoothly, replace
the vent door control motor.
2. Measure resistance between the No. 3 terminal and
No. 5 terminal, it should be approx. 10
3. Measure resistance between the No. 3 terminal and
No. 4 terminal, it should be approx. 0.6 at OPEN
and approx. 9.4 at CLOSE.