Tail Door Open Switch

Tail Door Open Switch

The CCU (C0428) monitors the condition of the tail door exterior handle by providing a feed to the tail door open switch (C0615) on an N wire. When the tail door handle is operated, current flows across the switch (C0615) to earth on a B wire. When the CCU registers this earth, it delays opening the tail door and lowers the tail door window approximately 17 mm.

The CCU (C0428) also monitors the condition of the tail door barrel switch (C0615) on a US wire. When the key is turned inside the barrel, current flows across the switch (C0615) to earth on a B wire. If the CCU registers a continuous earth path for approximately 2 seconds, it will lower the tail door glass.