Power Servo Unit Operation ON-VEHICLE INSPECTION 1. REMOVE COMPONENTS FROM VEHICLE (a) Undercover (b) Center cluster CHECK CONNECTOR (BL/BR) NORMAL OPERATION 2. RECONNECT TO CHECK CONNECTOR 3. RUN ENGINE AT IDLING 4. PLACE BLOWER CONTROL LEVER AT AUTO AIR FLOW CONTROL LEVER AT VENT TEMPERATURE CONTROL LEVER AT 77 Temperature Control Lever Air Flow Control Lever Blower Control Lever Air Intake Control Lever 5. CHECK BLOWER SPEED CONTROL BY SLIDING TEMPERATURE CONTROL LEVER (a) When sliding the lever to 70, the blower speed will change in five steps. (b) When sliding the lever to 85, the blower speed will change in four steps. WATER VALVE 6. CHECK WATER VALVE OPERATION BY SLIDING TEMPERATURE CONTROL LEVER (a) When placing the lever at the left side fully, the water valve will close. (b) When placing the lever at 75 or more, the water valve will open. POWER SERVO STEM 7. CHECK POWER SERVO STEM FOR A SMOOTH OPERATION BY SLIDING TEMPERATURE CONTROL LEVER 8. REINSTALL UNDERCOVER AND CENTER CLUSTER