Disconnect solenoid from harness at quick disconnect and check terminals for corrosion. Terminal plugs should be locked in place to the connector and should not come out. If terminals come out to the connector easily, it may not be making good contact with the mating terminal.
If terminals are free of corrosion and are firmly held in place in connector, jumper wires directly to the battery, as indicated in the diagram and following test procedure, to determine if the solenoid is functioning properly. (see diagram C) Connect the black wire first, followed by the white wire. When the red wire is connected the solenoid, plunger should pull in and stay in until either the red or black wire is disconnected. The white and black wires should stay cool even after a few seconds have passed. When disconnected the solenoid should return to its previous position.
If the solenoid fails the above procedure, the white or black wires get hot, or the contacts are highly corroded; contact CORSA Performance Marine for a replacement solenoid.
Testing Procedure for Three-Wire Solenoid Wiring Harness (Black Connector)
Make sure the ground connection and the 12-volt positive connections are clean and free of corrosion. Due to the high current draw of the system, any terminal that does not make a complete contact may cause a failure condition.
Disconnect the solenoids from the harness at their respective quick disconnects. Check for any corrosion at these terminals, clean and retry harness operation if corrosion is found. Terminal plugs should be locked in place to the connector and should not come out. If terminals come out of the connector easily, it may not be making good contact with its mating terminal.
Place a test light or volt meter probe into the white and black wire in the quick disconnect connector. With power supplied to the harness, current will flow between the white and black wires continuously at 12V minimum
Place the test light or volt meter probe into the red and black wire terminals in the quick disconnect connector. With power supplied to the harness, current will flow between the white and black wires continuously at 12V minimum.