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B1056–REAR BLEND DOOR TRAVEL RANGE TOO SMALL (ATC & MTC) (CONTINUED) 3. INSPECT ACTUATOR & HOUSING ASSEMBLY FOR A CONDITION CAUSING THE DOOR TO SEIZE OR Turn the ignition off. Inspect the actuator and the housing assembly for a condition causing the door to seize or bind. Are there any physical or mechanical problems with the door, housing, or actuator? Yes >> Repair as necessary in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1. No >> Go To 4 4. CHECK REAR BLEND DOOR TRAVEL Remove the Rear Blend Door Actuator from the Rear A/C Heater Housing Assembly. By hand, attempt to rotate the door in both directions. The door should operate smoothly in both directions over Does the door operate smoothly in both directions over approximately 70 degrees of travel? Yes >> Replace the Rear Blend Door Actuator in accordance with the Service Information. Then, Go To 5. No >> Repair as necessary in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1. 5. RUN ACTUATOR CALIBRATION TEST Turn the ignition on. With the scan tool, select System Tests and then select Actuator Calibration Test. When the test is complete, select Does the scan tool display: B1056–REAR BLEND DOOR TRAVEL RANGE TOO SMALL? Yes >> Replace the A/C Heater Control in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1. No >> Perform BODY VERIFICATION TEST - VER 1. HB HVAC - ELECTRICAL DIAGNOSTICS 24 - 249 |