footwell area. The button provides the
GM V with a ground signal when
pressed.
The vehicle must be unlocked or single
locked from the central lock switch for
the remote unlock to work. The remote
trunk release is locked out when the
trunk is locked in the valet setting or
when the GM V detects a vehicle speed
over 4 mph via the K-bus.
Pressing the trunk release button on an
FZV key also opens the trunk.
The trunk lid position (open/closed) and
trunk lock key positions are input signals
to the General Module (GM V). The trunk
lid OPEN/CLOSED signals come from
the trunk lid switch contact located in the
trunk lock motor. When closed, the trunk
contact provides a ground signal to the
GM V signifying a CLOSED trunk. This
contact also serves as the trunk light
switch when the trunk is OPEN.
The actuator motor only operates in one
direction to release the latch mechanism.
The latch mechanism can also be
manually unlocked with the key.
Located on the trunk lock are two
additional microswitches for key position
status signalling to the GM V.
Valet position switch: With the key
lock in the valet position, this switch
provides a ground signal to the GM
V. The GM V locks out the interior
trunk release button preventing the
trunk from being opened.
DWA cancel switch: When the trunk
is opened with the key, this switch
provides a ground signal to the GM
preventing the DWA alarm system
from activating, if armed.