Diesel Data: Automotive Repair

Air Door Actuator / Motor: Testing and Inspection








HEATING / AIR CONDITIONING: AIR INLET CONTROL SERVO MOTOR: INSPECTION

INSPECTION

1. INSPECT RECIRCULATION DAMPER SERVO MOTOR





(a) Disconnect the connector from the recirculation damper servo motor.
(b) Connect a positive (+) lead from the battery to terminal 5 and a negative (-) lead from the battery to terminal 2, then check that the arm turns to the "FRESH" side smoothly.
OK:
Lever turns to "FRESH" side smoothly.
(c) Connect a positive (+) lead from the battery to terminal 5 and a negative (-) lead from the battery to terminal 1, then check that the arm turns to the "RECIRCULATION" side smoothly.
OK:
Lever turns to "RECIRCULATION" side smoothly.
If the result is not as specified, replace the recirculation damper servo motor.