Circuit/System Verification

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Individually open and close each vehicle door while observing the door ajar indicator/message. The indicator/message should accurately transition between the door ajar and door closed state when each door is opened and closed.
- If the door ajar indicator/message does not properly transition when each door is opened and closed, refer to Door Ajar Indicator Malfunction .
Open and close the trunk while observing the trunk ajar indicator/message. The indicator/message should accurately transition between the trunk ajar and trunk closed state when the trunk is opened and closed.
- If the trunk ajar indicator/message does not properly transition when the trunk is opened and closed, refer to Trunk Ajar Indicator Malfunction .
Insert the vehicle key into the driver door key cylinder and rotate the cylinder between the idle and unlock positions. Verify the scan tool LF Key Cylinder Lock Switch parameter cycles between Idle and Unlock.
- If the scan tool parameter does not cycle between the specified parameters, refer to Content Theft Deterrent (CTD) Does Not Disarm with Key Lock .
Completely lower the driver door window and close all vehicle doors.
Ignition OFF, arm the CTD system using the keyless entry system by pressing the keyless entry transmitter LOCK button twice.
With the door open, verify the vehicle horn is pulsing and the exterior lamps are flashing.
- If the horn is not pulsing, refer to Horns Malfunction .
- If the exterior lights are not flashing, refer to Turn Signal Lamps and/or Indicators Malfunction .