DTC 043

DTC 43 Last Message Received with Sumcheck Error:

CONDITIONS FOR RUNNING THE DTC
The message received from remote control door lock transmitter is programmed to the BCM, but did not pass the sumcheck security test.

CONDITIONS FOR SETTING THE DTC
The remote control door lock transmitter is out of synchronization with the BCM. This can be caused by the remote control door lock transmitter buttons being pressed more than 256 times out of range of the BCM. It can also be caused by changing the battery in the remote control door lock transmitter and pushing the buttons more than 10 times out of range of the BCM. This malfunction could also be caused if the message has an error due to noise from the surrounding environment or the remote control door lock transmitter is detective.

ACTION TAKEN WHEN THE DTC SETS
No remote function capability.

CONDITIONS FOR CLEARING THE MIL/DTC
Fault is corrected and DTC memory clearing procedure is completed.

DIAGNOSTIC AIDS
A possible cause is the remote control door lock transmitter was synchronized out of range of the BCM. To synchronize the transmitter to the BCM, press the lock and unlock buttons on the transmitter at the same time for 5 seconds, this will synchronize the BCM with the remote control door lock transmitter.