FUNCTIONAL TEST AND ADJUSTMENT Vacuum Circuit ON-VEHICLE INSPECTION 1. REMOVE UNDERCOVER 2. DISCONNECT FROM NORMAL CONNECTOR AND RECONNECT TO CHECK CONNECTOR OF AMPLIFIER 3. PLACE TEMPERATURE CONTROL LEVER AT 77 4. CHECK VACUUM CIRCUIT (a) Run the engine and observe the movement of the power servo stem visually for one minute or more. The stem must be stable. (b) If the stem moves, check the vacuum circuit for leaks. 5. REINSTALL UNDERCOVER CHECK CONNECTOR (BLUE) NORMAL CONNECTION POWER SERVO STEM Temperature Control Lever Blower Control Lever Air Flow Control Lever Air Intake Control Lever APPLICABLE AIR CONDITIONER Vacuum Tank Cruise Control Actuator Vacuum Port Vacuum Tank Vacuum Gauge DVV VSV VSV Power Servo Water Valve