Design

Design

Driver's door control panels




The driver door module (DDM) uses LIN communication to communicate with the control panel for power windows and door mirror operation in the driver's door. The central locking control panel in the driver's door in directly connected to the driver door module (DDM). The driver door module (DDM) receives input signals from the control panels, at which time it performs the function or uses CAN or LIN communication to forward the signal to the control module that will perform the function.

The following functions can be controlled via the control panels:
- all power windows
- child safety locks
- operating the door mirrors
- central locking.

Passenger door control panels




The control panels in the passenger door are directly connected to the passenger door module (PDM). The passenger door module (PDM) receives input signals from the control panels, at which time it performs the function or uses CAN to forward the signal to the control module that will perform the function.

The following functions can be controlled via the control panels:
- power window mechanism in the passenger door
- central locking.

Rear door control panels




The control panels in the rear doors are directly connected to the relevant control module.
The control modules receive input signal from the control panels and then carry out the function.

The following functions can be controlled via the control panels:
- power window mechanism in the respective rear doors.

The door lock
See Design and Function, Central locking.
The passenger door module (PDM) and driver door module (DDM) have diagnostics for the front door lock units.
The lock units for the rear doors are diagnosed via the control module in the front door of the corresponding side of the vehicle.

The power window mechanism




The power window on the driver's side is operated via the control panel in the driver's door. The power window on the passenger side is operated either via the control panel in the passenger door or via the control panel in the driver's door.
The rear power windows can be operated via the control panel in the driver's door or via the left rear door module (LDM) or right rear door module (RDM), respectively. Power windows are operable when the ignition switch is in position I or II. They are also operable in the time period between the ignition being turned off and one of the front doors being opened.
The control panel in the driver's door has four spring-loaded switches that operate the individual windows.
The control panels in the passenger door, left rear door and right rear door each have a spring-loaded switch to operate the relevant power window.
The switches for the window lift mechanisms in all doors have five positions which control the position of the window:
0) Normal position where the function is passive.
1) step 1 upwards, raises the window for as long as the button is activated.
2) step 2 upwards, automatically fully closes the window (AUTO-UP).
-1) step 1 downwards, lowers the window for as long as the button is activated.
-2) step 2 downwards, fully opens the window automatically (AUTO-DOWN).

The window lift mechanisms have a hall sensor which measures the rotation speed of each lift mechanism, allowing the mechanisms to determine the position of the window. If a Hall sensor is not functioning in one of the window lift mechanisms, the AUTO-UP or AUTO-DOWN function for that window is not available.
In all the doors, the power window mechanism, power window motor and Hall sensor form one unit and cannot be replaced separately.
All power window lift mechanisms in the front doors have an integrated function to prevent pinching.
When AUTO UP is activated, the power window detects if it meets resistance, that is to say if too great a force must be used to close the window. The window then stops and goes down a bit. Pinch protection is active during AUTO UP if the window is open more than 3 mm (0.1 in).
A diagnostic trouble code is generated if for some reason the power window loses information on window position. The power window must then be reinitiated. This is done via a diagnostic function or manually by activating AUTO UP and keeping the switch actuated for at least 1 second after the window has reached its closed position.
The passenger door module (PDM) and driver door module (DDM) have diagnostics for the window lift mechanisms and Hall sensors in the front doors.
The window lift mechanisms and Hall sensors in the rear doors can be diagnosed via the control modules in the front doors on the relevant side of the vehicle.

Door mirror




Motors
The door mirror motors are operated via the control panel in the driver's door.
The mirrors can be adjusted along the X and Y axes via the two motors for each mirror. Two buttons on the control panel, marked L and R, are used to select either the right or left-hand mirror for adjustment. An LED lights in the button that is activated. Only one button can be activated at any one time (left or right). X and Y axis adjustment is done using a control that maneuvers the mirror in the selected direction for as long as the button is pressed (or until the mirror reaches a limit position). To deactivate the adjustment control, press the left or right button again so that the LEDs are off. The mirrors can be adjusted when the ignition switch is in position I or II.
The power seat with memory function for door mirrors is optional equipment.
This function is described in more detail in Design and Function, Power seat module (PSM). The function requires that mirror position be saved when the vehicle is locked. Two sensors in each mirror keep track of mirror position along the X and Y-axis.
Automatic angling of the door mirror when reverse gear is engaged in is possible in cars produced after structure week 200946. The setting is made in the infotainment control module (ICM) if the right and/or left-hand door mirror shall go to the end position in the Y-axis. Manual setting of the door mirrors is still possible via the control panel in the driver's door.
The door windows can be equipped as an option with a motor that allows the mirror housing to be folded in. The motor for folding in the door mirrors is diagnosed and powered by the driver door module (DDM) and passenger door module (PDM) respectively.
The motors and sensors used to set the position of the door mirrors form one unit and cannot be replaced separately.
Heating
The door mirrors contain a heating loop to defrost the glass. The heating loop is on the reverse of the mirror glass. In the event of a fault, the entire mirror glass must be replaced. The heating loops are supplied with power and ground by the driver door module (DDM) and passenger door module (PDM), which also have diagnostics for the loops. However the function is activated by the climate control module (CCM).
Lights in the door mirrors
The door mirrors can be equipped with lamps. The lamps are mounted on the bottom of the mirror housing. The outputs to the lamps are supplied power and diagnosed via the driver door module (DDM) and passenger door module (PDM). The function, however, is activated by the central electronic module (CEM) and the remote key.
Outside temperature
In the left mirror (applies to both left and right-hand drive cars) there is a temperature sensor which measures the outside temperature. The temperature information is used by the driver information module (DIM). The temperature sensor is directly connected to the Engine control module (ECM).
The temperature sensor can be replaced individually. The temperature sensor can be diagnosed via the engine control module (ECM).
Turn signals
Each door mirror housing has a turn signal mounted at the end of the mirror housing. The driver door module (DDM) and passenger door module (PDM) have diagnostics for the outputs for turn signal lamps.
However, the function is activated via the left control stalk. A signal is transmitted by the steering wheel module (SWM) to the driver door module (DDM) respectively passenger door module (PDM), via the central electronic module (CEM).

Blind spot information system (BLIS)




The blind spot information system (BLIS) is an auxiliary system designed to help the vehicle's driver when moving sideways. The blind spot information system (BLIS) consists of two cameras integrated in the external rear view mirrors and two LEDs located in the panel at the front of the inside of the respective windows.
The driver door module (DDM) and passenger door module (PDM) communicate with the left camera module (LCM) and right camera module (RCM) via LIN communication.
The blind spot information system (BLIS) is always activated automatically at speeds over 10 km/h (6 mph). The blind spot information system (BLIS) can be deactivated and reactivated using the switches on the comfort panel of the climate control module (CCM). A signal is then sent via the driver door module (DDM) and passenger door module (PDM) to the left camera module (LCM) and right camera module (RCM) with a request to deactivate or reactivate the blind spot information system (BLIS).
When reverse gear is engaged, the blind spot information system (BLIS) is deactivated.

The system reacts to vehicles in the blind spot if:
- the vehicle is traveling past another vehicle with a speed difference of up to 10 km/h
- another vehicle passes with a speed difference of up to 70 km/h.
The blind spot information system (BLIS) can be diagnosed.