AC–47 AIR CONDITIONING SYSTEM – TROUBLESHOOTING INSPECTION PROCEDURE 1 Actuator check. P 1. Remove glove box to see and check the air inlet damper operation. 2. Set to the actuator mode (See page AC–22) 3. Turn the TSET dial and change it to the step operation C Turn the TSET dial and check the operation of the air inlet damper. OK Set Temp. Air Inlet Damper Below 20 REC 20 ~ 23 F/R Over 23 FRS NG OK Proceed to next circuit inspection shown on matrix chart (See page AC–26). AC2994 2 Check air inlet damper control servo motor. P 1. Remove instrument panel. 2. Remove the air inlet damper control servo motor assembly C Connect positive (+) lead to terminal 2 and negative (–) lead to terminal 5. OK The lever moves smoothly to REC position. C Connect positive (+) lead to terminal 2 and negative (–) lead to terminal 3. OK The lever moves smoothly to FRS position. 5 2 REC FRS 3 2 N08788 N08787 OK NG Replace air inlet damper control servo motor assembly. 3 Check harness and connector between A/C amplifier and air inlet damper control servo motor assembly (See page IN–30). OK NG Repair or replace harness or connector. Check and replace A/C amplifier.