Your best bet , take it to a qualified repair shop that has a diagnostic scanner that can check for DTC'S - diagnostic trouble code's an input's from the fob's an messaging from the passenger door module to the BCM. Does the power window & power locks work for the passenger door ? If so , it's not a fuse .
The keyless entry system has the following main components:
• The transmitters
• The passenger door module (PDM)
The PDM communicates with the body control module (BCM) through the keyless entry serial data circuit. When you press a button on a transmitter, the transmitter sends a signal to the PDM. The PDM sends a request to the BCM and the BCM performs the appropriate function.
Diagnostic System Check - Remote Keyless Entry
The numbers below refer to the step numbers on the diagnostic table.
Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
The presence of DTCs which begin with "U" indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed. Any other body control module DTCs displayed by the scan tool do not apply to Remote Keyless Entry and should be diagnosed in the applicable section.
Install a scan tool.
Does the scan tool power up?
YES - Go to Step 2
NO - Go to Scan Tool Does Not Power Up in Data Link Communications
2
Turn ON the ignition, with the engine OFF.
Attempt to establish communication with the following control modules.
• body control module
• passenger door module
Does the scan tool communicate with all of the listed control modules?
SOURCE: location of fuse box/panel for 2004 yukon denali xl
There are 2 fuse panels in the Denali.
One is a panel on the drivers side, its on the dash but facing the door.
The ohter is under the dash and above the pedals, this one is much tougher to access.
Your Owner's Manual should tell you where the fuses are that you need to access.
SOURCE: keyless entry remote
Check inside the remote case...there's instructions printed that tell you to hold the lock and unlock buttons for 7 seconds to reset the remote. I'm in the middle of replacing batteries myself. Let me know if it works.
SOURCE: I PURCHASED THIS 2004 AVIATOR USED WITH NO KEYLESS ENTRY CODE.
the keyless code is by the right rear door panel. open the door, remove the panel that's over the the seatbelt. after doing that open but you don't have just kind of stretch out and their you will find a black box or reciever with a sticker and a 5 digit code stamped on it. if you want to change the passcode refer to your manual, but you'll need the original code to be able to change it.
SOURCE: Keyless entry not working
the keyless entry system is tied into the computer system and needs to reprogramed by the dealership
SOURCE: 2004 Chevy Impala Keyless Entry System Stopped Working
HOPE THIS HELPS YOU MIGHT WANT TO REPROGRAM THAT KEYLESS ENTRY FOB.. JERRY
. Turn the ignition to ACC or ON and the radio to off. Do not crank the engine.
2. Press and hold the DISP button on the radio for at least five seconds until settings is displayed.
3. Press the SEEK up or down arrows until FOB PROG appears on the display.
4. Press the PREV or NEXT button to enter the submenu. The current selection will have an
asterisk next to it. BEGIN will be displayed.
5. Press the DISP button to start programming. When the message PUSH FOB flashes, press and
hold the LOCK and UNLOCK buttons on the first transmitter at the same time for 15 seconds. A
chime will be heard to verify the transmitter is learned.
6. Repeat Step 5 for each additional transmitter up to four remotes total. You do not need to press
the DISP button again, just press down the LOCK and UNLOCK buttons on the next transmitter
to be learned to a maximum of four transmitters per vehicle.
The mode you selected is now set. You can either exit the programming mode by following the instructions later in this section or program the next feature available on your vehicle.
EXIT (Exit Feature Customization Mode): This feature allows you to exit the vehicle customization programming.
To Exit:
1. Scroll until EXIT appears on the display.
2. Press the DISP button to exit programming. A chime will he heard to verify the exit.
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