Dtc 43 Last Message Received With Sumcheck Error - GMC Chevrolet Camaro 1998 Service Manual

8-460 Body Control System Body and Accessories
OTC 43 Last Message Received with Sumcheck Error
Conditions for Setting the DTC
Diagnostic Aids .
The signal was received by the BCM from a remote.
control door lock transmitt~r that is programmed to the
BCM. Th'e message did not pass the sumcheck
security test.
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:
Action Taken When the OTC Sets
• The transmitter buttons were pressed more
t.han 256 times while out of range· of the BCM.
All of the remote control door lock transmitter functions
do not operate. ·
• The transmitter buttons were pressed more
Conditions for Clearing the DTP
than 10 time while out of the range of the BCM
immediately after the transmitter battery has been
replaced.
DTC 43 is set when all of the following • The transmitter signal encountered noise from the
conditions occur: - · surrounding environment.
• The BCM is in the diagnostic mode • The .transmitter is defective.
• Any button oh the remote control door lock·
Test Description
transmitter is ~ressed The numbers below refer to the step numbers on the
• The transmitter signal does not pass the diagnostic table.
sumcheck security test 1 . This step tests the BCM to see if DTC 43 is
DTC 43 is automatically cleared after it is displayed. displayed by tt"le BCM.
Any button on the remote control door lock transmitter 2. This step tests the remote control door lock
must be pressed again to display DTC 43 a!:Jain. transmitter.
DTC 43 Last ,Message Received with Sumcheck. Error
Step Action Value(s) Yes No
1. Enter the BCM diagnostic mode. Refer to Diagnostic
Trouble Code (OTC) Displaying Displaying DTCs.
1
2. Press any button on the remote control door lock
-
· transmitter.
..
Does the BCM display DTC 43?
...
Go to Step 2 System OK
1. Reprogram the remote control door lock transmitter to
the BCM. Refer to Transmitter
Programming/Synchronization.
2
2. Enter the BCM diagnostic mode. Refer to Diagnostic
Trouble Code (OTC) Displaying Displaying DTCs .
-
..
3. Press any button on the remote control door lock
transmitter., . .
Does the BCM display DTC 43?
Go to Step 3
System OK
1. Program a known good remote control door lock
transmitter to the BCM. Refer to Transmitter
Progmmming/Synchronization.
3
2. Enter the BCM diagnostic mode. Refer to Diagnostic
Trouble Code (OTC) Displaying Displaying DTCs ..
-
3. Press any button on the remote control door lock
transmitter.
boes the ;BCM display DTC 43? Go to Step 4 Go to Step 5
Replace the BCM. Refer to Body Control Module
4
Replace"7ent.
- -
Is the ·repair complete? System OK
1. Check the battery of the original transmitter.
5
2. If the battery is. OK, replace the transmitter.
-
-
Is the repair complete? System OK
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