DTC C1783/83: Door Courtesy Switch Circuit: Description
WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
The door courtesy switch comes on when the door is opened and goes off when the door is closed. Therefore, battery positive voltage is applied to the terminal DOOR of the ECU when all the doors are closed and 0 V is applied when even one door is opened.
DTC DETECTION CONDITION TABLE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| C1783/83 | Door courtesy switch signal does not change |
|