key fob no longer works

Test the fob probably just a dead battery, most auto parts stores you can test the signal strength with a meter.

i dont have an answer, I have the same problem, did anyone have a solution, I changed the master switch too and now my key fob doesnt work

I have an answer for you. I just installed the master window switch and had the same issue. As you probably noticed, there’s not much infor on the web about it. So I did some trouble shooting. If you still have your OLD master switch, you’re going to be fine. If not, this will be no help. You’ll see in the picture the circled part of the back of the master switch. From what I gather, this is the key fob receiver or controller. There’s one screw in the circular hole. Take it out and that piece will pop out. Switch it out with the one on your new master switch. There’s a possibility you may need to program it...I so here’s those instructions: Note: Entering the programming mode cancels all learned keyless remotes, so none of the previously programmed remotes will work. You must reprogram all of the keyless remotes once you are in the programming mode. You must complete each step within 5 seconds of the previous step to keep the system from exiting the programming mode. 1. Turn ignition switch to ON (II) 2. Press the LOCK or UNOCK button on one of the remotes. (An unprogrammed remote can be used for this step.) 3. Turn ignition switch to LOCK (0) 4. Repeat steps 1, 2 and 3 two more times using the same keyless remote used in step 2 5. Turn the ignition switch to ON (II) 6. Press the LOCK or UNLOCK button the same remote. Make sure the power door locks cycle to confirm you are in programming mode. 7. Press the LOCK or UNLOCK button on each remote you want to program. Make sure door locks cycle after you push each remote button to confirm system has accepted the remote. 8. Turn the igniton switch to LOCK (0) to exit programming mode. 9. Test remote(s) I hope this helps!

I had same situation after replacing master switch the remote key was not working. Followed Mat’s instructions above and I’m back up and running. Thx!

MATT: You the MAN !!! THANKS, I did not change anything, BUT if your car sits a month or so without a battery in it, APPARENTLY you will need to reprogram the remotes... ** WORKED LIE A CHARM** Thanks Again

Mat Bishop, boy, i hope you see this. What do I do if I've already thrown away the old master switch?

@GuruX68F6 Unfortunately, I can’t help you there. You can try to reprogram the remote. I didn’t have any luck with this. But my fob battery was low so that may have affected it. Hopefully you can get it working!

Thanks for doing the trouble shooting and the posting Mat; was able to reset the fobs! I purchased the Import Direct part and did not have to switch out the circled part. The ID part runs about $150, and the guy at O'Reilly's said ID is at or exceeds original equipment.

You must do a re learn.

Does this work with a 2008 Honda accord ex l

Great advice Matt... worked for me. Except I found I had to repeat the step for a total of 5 cycles before both fob’s were locking in program mode and then when I went to lock (0) mode neither fob worked. So I repeated the whole thing 5 times until both keys were working in program mode and then turned key to start car (III) and then both keys were officially working for good

How do I do this to program the key fobs on my accord 2004 honda If my locks are not cycling to assure that I'm in programming mode?? Is this something wrong with my door?

Tried removing (switch) and trading) the FCC transponder as above: discovered plugs do not match replacement master switch.

Thank you so much Mat! This worked. Appreciate you taking the time to share this information.

Mat thank you so much you saved me! Fortunately I had the old switch and was able to swap out the controller/receiver, otherwise I couldn't get the key programmed (I tried several times). Works perfectly now. Appreciate your thoughts and posting!

Thank you, looked long and hard!!!! You answered my questions!!!! THANK YOU!!!!!!