Civic DX Coupe L4-1590cc 1.6L SOHC MFI (1999)
Air Door Actuator / Motor: Testing and Inspection
Recirculation Control Motor
1. Disconnect the 4P connector from the recirculation control motor.
2. Connect battery power to the No.1 terminal, and ground the No.2 and No.4 terminals; the recirculation control motor should run smoothly.
CAUTION: Never connect the battery in the opposite direction.
3. Disconnect the No.2 or No.4 terminals from ground; the recirculation control motor should stop at FRESH or RECIRCULATE.
NOTE: Don't cycle the recirculation control motor for a long time.
4. If the recirculation control motor does not run in step 2, remove it, then check the recirculation control linkage and door for smooth movement. If
they move smoothly, replace the recirculation control motor.
