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Symptom: DRIVER BLEND DOOR TRAVEL TOO SMALL (ACTIVE) - ATC When Monitored and Set Condition: DRIVER BLEND DOOR TRAVEL TOO SMALL (ACTIVE) - ATC When Monitored: With the ignition on and the IOD fuse installed. Set Condition: The Automatic Temperature Control (ATC) monitors the door’s range of travel during system initialization. If the measured range is less than expected, the DTC POSSIBLE CAUSES DRIVER BLEND DOOR NOT RESPONDING DTC SET AUTOMATIC TEMPERATURE CONTROL (ATC) OBSTRUCTED BLEND DOOR DRIVER BLEND DOOR ACTUATOR TEST ACTION APPLICABILITY 1 Turn the ignition on. t, read the active ATC DTCs. Does the DRBIII t display: DRIVER BLEND DOOR NOT RESPONDING? All Yes → Return to the Heating & A/C symptom list and choose the symptom. No → Go To 2 2 Turn the ignition off. All Yes → Go To 3 No → Replace the Automatic Temperature Control (ATC) in accordance with the Service Information. 577 HEATING & A/C |