Main Relay (Computer/Fuel System): Testing and Inspection

Fig. 206 ECCS Relay & Fuel Pump Relay Continuity Test:

1. With a 12 volt direct current supplied between terminals 1 and 2, continuity should exist between terminals 3 and 5, Fig. 206.
2. No continuity should exist between terminals 3 and 5 when no current is supplied.