Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
RFA Message Since Wake-Up
1998 GMC Envoy 2WD V6-4.3L VIN WSECTION RFA Message Since Wake-Up
Input 1 (Part 1 Of 2):
Input 1 (Part 2 Of 2):
Range: NONE/ PANIC/ ACTIVE UNLOCK Fob (#)/ ACTV LOCK/ PROG MODE CANCEL/ REAR/PROG MODE REQ/ TRANSMITTER DIAG/ PROG SUCCESSFUL/ MODE ACK/ MANUAL RESYNC
The RFA message since wake-up refers to the last message sent to the BCM from the RFA module. The RFA module sends a request to the BCM based on the RFA transmitter (key fob) button presses. The scan tool will display the last RFA Module request to the BCM since the BCM has been awake.
NONE is displayed when the BCM wakes from the asleep status without receiving a message from the RFA Module. Messages result from a button press from a programmed RFA key fob.
ACTIVE UNLOCK FOB (#) is displayed when the respective programmed RFA key fob is pressed to UNLOCK the vehicle.
ACTIVE LOCK is displayed when a lock button is pressed on any programmed RFA key fob.
REAR or PANIC is displayed when the respective button is pressed on any programmed RFA key fob.
When reprogramming a key fob, the state of the RFA system will also manually re-synchronize any key fob that is out of synchronization. Synchronization can be viewed on the scan tool as Manual Resync. In order to view, press down on both the LOCK and the UNLOCK buttons at the same time for about 4.3-7.3 seconds. A lock cycle, an unlock cycle, and a horn chirp will confirm that the re-synchronization was successful.
The possible scan tool plays for the RFA button presses are as follows:
^ NONE
^ ACTV UNLCK Fob 1
^ ACTV UNLCK Fob 2
^ ACTV UNLCK Fob 3
^ ACTV UNLCK Fob 4
^ ACTV LOCK
^ REAR
^ PANIC
^ PROG MODE CANCEL
^ PROG MODE REQ
^ PROG SUCCESSFUL
^ PROG MODE ACK
^ TRANSMITTER DIAG
^ MANUAL RESYNC
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.