Sienna LE V6-3.0L (1MZ-FE) (1998)
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Heater Control Valve: Testing and Inspection
1. WARM UP ENGINE
2. DISCONNECT WATER VALVE CONTROL CABLE
3. INSPECT WATER VALVE OPERATION
a. Check that warm air is blown out of the ventilator when the water valve lever is moved to "WARM" position.
b. Check that cool air is blown out of the ventilator 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
After connection, adjust the control cable.
