Door Switches

Door switches send a ground signal to Vehicle Dynamics Module (VDM) when the door is opened. VDM uses this signal to prevent venting air springs when door is open. If door switch circuit is damaged so module communication network issues a DOOR OPEN signal at all times, the VDM will interrupt that door is open and not vent unless vehicle speed is above 5 MPH. Above 5 MPH VDM disregards all lamp switch signals.