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ELECTRICAL
113
ELECTRICAL
OPERATION:
Controller allows windows to move when the
following inputs are present.
Ignition is ON or
Simulated Ignition from BCM is high
If any of the input is present then window
winding controller will operate the motor as per
window winding Switch request.
The BCM Accessory Relay output is
connected to the Window winding controller.
Whenever the vehicle power state is IGNITION or
RUN the BCM accessory relay output should be
high.
When the vehicle engine is stopped by the
user, the accessories should remain powered for
10 Min. to allow powered functions to be
performed without turning the key to the ignition
position again. (
E.g. close electric windows and
fold ORVM
).
When the vehicle power state changes
from IGNITION to OFF or KEY IN SENSOR, the
BCM Accessory Relay output will remain high for
10 minutes.
NOTE:
If driver door is opened then Acc delay get
immediately cancelled.
There is an individual switch at each
window and a set of switches in the driver's door,
so the driver can operate all the windows.
Switches are used only to provide a mode signal to
controller for further operation. Motor current does
not pass through the Switches.
Each switch has four positions,
OFF
Manual Up (
MU
)
Manual Down (
MD
)
Auto Down (
AD)
When a particular mode is operated,
ground signal appears on particular terminal MU,
MD or AD. In case of Auto down ground signal
appears on both MD and AD terminals.
Child Lock Functionality
In switch circuit driver has an option to
disable the passenger switches by locking the
window lock switch (
Inside the driver door window
winding switch
). This disconnects ground line to
passenger switches. Rear LH and RH window
winding switches are disabled.
When parking is switched ON, back
illumination on the window winding switches of
driver as well as passenger switches will be ON.
Lock/unlock switch LED is also on when it is in
unlock mode.
Window winding controller functionality during
cranking:
During cranking the vehicle, the following
are the window winding operations,
In Manual Up and Manual Down mode, the
windows stop moving during cranking and only
start moving after cranking if the user is still
operating the switch.
If Auto Down is active and user cranked the
vehicle then window movement should stop
until vehicle get cranked and after that auto
down function get automatically activated
without user intervention.