Recirculation Solenoid

Fig. 16 Recirculation solenoid test.:

1. Using a suitable ohmmeter, check for continuity between terminals as shown in Fig. 16. Ensure fuse is in good condition.
2. If meter does not indicate continuity, check fuse and replace as needed. If fuse is satisfactory, solenoid is defective.

Fig. 44 Functional test, with diaphragm.:

3. Connect diaphragm capsule and apply vacuum to solenoid as shown in Fig. 44 . Solenoid should not transmit vacuum to diaphragm capsule.
4. Connect battery positive terminal to solenoid terminal A and negative battery terminal to solenoid terminal B. Vacuum should be transmitted to diaphragm, and diaphragm plunger should retract and hold.