Heater Control Valve: Testing and Inspection

WATER VALVE

ON-VEHICLE INSPECTION

1. WARM UP ENGINE
2. DISCONNECT WATER VALVE CONTROL CABLE




3. INSPECT WATER VALVE OPERATION
a. Check that warm air comes out the vent when the water valve lever is moved to the "WARM" position.
b. Check that cool air comes out when the water valve is moved to the "COOL" position.
If operation is not as specified, replace the water valve.

4. CONNECT WATER VALVE CONTROL CABLE