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B10AF–RIGHT BLEND DOOR ACTUATOR PERFORMANCE (ATC) (CONTINUED) 3. RUN ACTUATOR CALIBRATION TEST With the scan tool, select System Tests and then select Actuator Calibration Test. When the test is complete, select Does the scan tool display any DTCs? Yes >> Diagnose and repair the DTC(s). Refer to the Table of Contents in this Section for a complete list of all HVAC related symptoms. No >> Go To 4 4. CHECK MODE, BLEND & RECIRCULATION DOOR OPERATION Start the engine. Set the blower to high speed. Operate each door in all positions in one direction and then in the opposite direction while monitoring the following: • For the Mode Doors, verify that air flows from each vent accordingly for the position selected on the A/C • For the Blend Door, verify that the airflow air temperature changes accordingly for the temperature range • For the Recirculation Door, verify that the sound of the air flow get louder as the recirculation door opens to Does each door operate properly? Yes >> The condition causing the fault has cleared at this time. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL No >> Remove the door actuator of the affected door from the A/C Heater Housing Assembly. By hand, attempt to rotate the actuator in both directions. Inspect the A/C Heater Housing for damage, for dis- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL 24 - 220 HVAC - ELECTRICAL DIAGNOSTICS WK |