Be sure to join the connectors between the clamps (arrowed in the picture above).
8. Lead the heater connector and fix it with the clamps [A] as shown.
9. Connect the end of the relay harness to the main machine’s harness.
10. Replace the screws [A] with screws that have a lock washer.
11. Install the harness of the heater and connect it to the PSU. (
p.2-61 "Installing the Harness
of the Heater")