Diesel Data: Automotive Repair

Fresh Air/Recirculation Control









Inspect Servo Motor Operation

1. With the positive (+) lead from the battery to terminal 1 and negative (-) lead to terminal 2, check that the lever moves smoothly from FRESH to RECIRC.
2. With the positive (+) lead from the battery to terminal 1 and negative (-) lead to terminal 3, check that the lever moves smoothly from RECIRC to FRESH.

If operation is not as specified, replace the servo motor.