My 2005 Chevy Impala just started having this problem: While driving, the automatic door lock mechanism keeps trying to lock the doors, even when they are all locked already. This results in anoying door lock clicks every 20 seconds or soo. Car runs OK and this action stops when the engine is turned off. How to get rid of this " new feature"? In longer runs this constant clicking becomes unbearable! Thanks Tom
It's probably a bad input to the BCM - body control module ! Have it checked for DTC'S - diagnostic trouble codes .
The automatic door lock function can only be enabled by the body control module (BCM) if the driver door open switch and door ajar switches are in the Closed state. For information on programming the automatic door locks, refer to Vehicle Personalization in Personalization.
DTC B3064 or B3069
DTC B3127
DTC B3128, B3133, or B3138
DTC B3132
DTC B3137
DTC B3272
Your best bet , take it to the chevy dealer . Unless you own a GM factory Tech 2 scan tool an have access to factory sevice repair info.
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The outputs to the door lock actuators are controlled by the body control module (BCM). When the BCM receives a lock input from a door lock switch, or a keyless entry transmitter, it applies battery positive voltage to the door lock actuator lock control circuit, a ground to the door lock actuator unlock control, and the driver door lock actuator unlock control circuits. When the BCM receives an unlock input from a door lock switch, it applies battery positive voltage to the door lock actuator unlock control, the driver door lock actuator unlock control circuits, and a ground to the door lock actuator lock control circuit . When the BCM receives an single Unlock input from a keyless entry transmitter, it applies battery positive voltage to the driver door lock actuator unlock control circuit and a ground to the door lock actuator lock control circuit to unlock the driver door. A second Unlock input from the transmitter applies battery positive voltage to the door lock actuator unlock control circuit, and a ground to the door lock actuator lock control circuit to unlock the passenger doors.
This diagnostic procedure supports the following DTCs:
• DTC B3128 Left Front/Driver Door Unlock Circuit High
• DTC B3133 All Door Unlock Circuit High
• DTC B3138 All Door Lock Circuit High
SOURCE: My 2004 Ford Escape doors locks keep locking on their own.
check all the door lock switches make sure none of them are sticking. make sure they spring back in both up and down position
SOURCE: door constantly locking
replace the door ajar switches,they get worn after awhile and barly make contact and that makes the body contol module think the door was opened and closed so i will lock them again,hope this helps
it sounds like you may have a door switch going bad or in need to adjustment, the car thinks the door is ajar and then cycles the locks. the hard part may be to figure out which switch is making it act up.
SOURCE: door locks in 2005 ford focus keep clicking like someone keeps pushing the lock switch
did you ever get an answer that works? My daughter's '04 does the same thing.
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