honda Workshop Repair Guides

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Heat/Def & Vent/Def Solenoids|Page 1509 > < Heat/Def & Vent/Def Solenoids|Page 1507
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Vacuum Controller: Testing and Inspection
Flow Solenoid

Fig. 7 Flow solenoid test.

1.

Using a suitable ohmmeter, check for continuity between A and B terminals, Fig. 7. If no continuity, replace solenoid.

Fig. 8 Using vacuum pump to test flow solenoid.

2.

Connect a suitable vacuum pump to solenoid as shown in Fig. 8, then draw vacuum. Solenoid should retain vacuum. If not, replace solenoid.

Heat/Def & Vent/Def Solenoids|Page 1509 > < Heat/Def & Vent/Def Solenoids|Page 1507