Otc 45 Receiver Processing In 20 Second Lockout - GMC Chevrolet Camaro 1998 Service Manual

8-462 Body Control System
Body and Accessories
DTC 45 Receiver Processing in 20 Second Lockout
Conditions for Setting the DTC
At least 50 consecutive signals were received by the
BCM from a remote control door lock transmitter
that is programmed to the. BCM. All of the signals did
not pass the encryption security test.
Action Taken When the OTC Sets
The BCM stops processing all transmitter signals for
20 seconds. All of the remote control door lock
transmitter functions do not operate.
Conditions for Clearing the DTC
DTC 45 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
DTC 45 is automatically cleared after it is displayed.
Any button on the remote control door lock transmitter
must be pressed again to display DTC 45 again.
Diagnostic Aids
If DTC 45 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 was in the synchronization or
program mode while out of the range of the BCM.
• 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 45 is
displayed by the BCM.
2. This step tests the remote control door lock
transmitter.
OTC 45 Receiver Processing in 20 Second Lockout
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 OTC 45? 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 OTC 45? Go to Step 3 System OK
1. Program a known good remote control door lock
transmitter to the BCM. Refer to Transmitter
Programming/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.
Does the BCM display OTC 45? Go to Step 4
Go to Step 5
Replace the BCM. Refer to Body Control Module
4
Replacement. - -
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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