Circuit/System Verification
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. 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 (w/o AN3) or Door Ajar Indicator Malfunction (w/AN3) .
- 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 transmitter LOCK button twice. Verify the scan tool CTD Status parameter displays Armed.
- If the parameter does not equal the specified value, refer to Keyless Entry System Inoperative .
- Without disarming the system, reach in through the open driver window, unlock and open the driver door. Verify the scan tool CTD Status parameter displays Alarm Active.
- If the parameter does not equal the specified value, replace the BCM.
- 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 .