DTC 43

Diagnostic Trouble Code (DTC) Chart:

CONDITIONS FOR SETTING THE DTC
The signal was received by the BCM from a remote control door lock transmitter that is programmed to the BCM. The message did not pass the sumcheck security test.

ACTION TAKEN WHEN THE DTC SETS
All of the remote control door lock transmitter functions do not operate.

CONDITIONS FOR CLEARING THE DTC
DTC 43 is set when all of the following conditions occur:
^ The BCM is in the diagnostic mode
^ Any button on the remote control door lock transmitter is pressed
^ The transmitter signal does not pass the sumcheck security test

DTC 43 is automatically cleared after it is displayed. Any button on the remote control door lock transmitter must be pressed again to display DTC 43 again.

DIAGNOSTIC AIDS
If DTC 43 is set, the remote control door lock transmitter is out of synchronization with the BCM.
This can be caused by any of the following:
^ The transmitter buttons were pressed more than 256 times while out of range of the BCM.
^ The transmitter buttons were pressed more than 10 time while out of the range of the BCM immediately after the transmitter battery has been replaced.
^ The transmitter signal encountered noise from the surrounding environment.
^ The transmitter is defective.

TEST DESCRIPTION
The numbers below refer to the step numbers on the diagnostic table.
1. This step tests the BCM to see if DTC 43 is displayed by the BCM.
2. This step tests the remote control door lock transmitter