Dual THERMACTOR Air Control Solenoid Valve
The function of each valve can be determined by externally energizing valve with vacuum lines attached. See THERMACTOR AIR VALVE OPERATION . Check resistance of each solenoid. Resistance should be between 51-108 ohms when checked at coil terminals. If the resistance is not within these values, replace solenoid.
THERMACTOR AIR VALVE OPERATION
| Airflow | (1) TAB Solenoid | (2) TAD Solenoid | ||||
|---|---|---|---|---|---|---|
| Upstream | On | On | ||||
| Downstream | On | Off | ||||
| By-Pass | Off | Off | ||||
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