Ensure that relays are security installed.

Are the fuse capacities for each circuit correct?

Are there any blown fuses?

If a fuse is to be replaced, be sure to use a new fuse of the same capacity. Always determine why the fuse blew first and completely eliminate the problem before installing a new fuse.

Be sure that the relays are held the each module securely.

Are the relay types for each circuit correct?

If a relay-operated system does not operate properly, verify the condition of the relay and replace the relay (if inoperative) before continuing with additional troubleshooting.