Lexus NX: System Description
SYSTEM DESCRIPTION
BACK DOOR CLOSER SYSTEM DESCRIPTION
(a) Operating any back door opener switch assembly when the back door is fully closed inputs a request signal to the multiplex network door ECU. The multiplex network door ECU outputs a "latch release" command to the back door lock assembly in response to the input.
(b) The latch can be released only when the back door is unlocked.
(c) 3 switches are built into the back door lock assembly, and the multiplex network door ECU monitors each switch status. The multiplex network door ECU controls latch "release/close" operations in response to the inputs from each switch.
| Switch | Function |
|---|---|
| Back door courtesy light switch | Detects whether back door is open or closed. This switch turns on when back door is open or ajar and turns off when it is fully closed. |
| Latch switch | Detects fully closed position of latch. This switch turns on when latch is in open-latch position. |
| Initial switch | Detects ajar position of latch. This switch turns on when latch is in half-latch position. |
FUNCTION OF MAIN COMPONENTS
| Component | Function |
|---|---|
| Multiplex network door ECU | The multiplex network door ECU controls the back door closer system in accordance with the signals received from the back door lock assembly. |
| Back door lock assembly | Receives an operation signal from the multiplex network door ECU to open/close the back door. |
CONSTRUCTION AND OPERATION
(a) Closing Operation
(b) Opening Operation
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