I agree. I’m trying to teach my sons that learning this stuff will help them troubleshoot so many things in life. People who do are far ahead of others. Thanks so much!
Terrific information. My 2003 Suburban is unlocking intermittently. I will try to switch the relays tomorrow and replace if necessary. I had no idea where to find them either so your video was very helpful. Thanks very much!
Great video, very informative, thanks!, my problem is, only one door ( driver's side ) will not lock or unlock with the remote, or the switch, all other doors work correctly, I replaced the actuator, but it still does not work, all fuses & relays check out, wiring/connectors look good and intact, the old actuator was bond up, could not use key or slide inside to operate locking mechanism, door would not lock, new actuator in place, I can use the key to lock/unlock door now but still does not work with remote or switch, any ideas? Thank you in advance.
Did you figure it out ? My 05 suburban has a FOB. For about 2 years now I noticed that my battery goes dead and I think the problem I was told is in the actual door switch. It's a very slow drain after about 25 hours my battery is low. I wish there was an easy disconnect fuse that I could just pull to disconnect the power to that switch.
Thanks for this helpful video. It didn't solve my problem but it did give great information to get the analyzing started. On to the relays next. One ticks so I think it may be the problem.
I'm having the same issue, I believe it might be the keyless entry wireless receiver. I'm actually looking for a troubleshooting video on that keyless receiver but no such luck.
Um did u program it to ur truck??? And also where did u get the fob at cuz if it's a cheap one from somewhere it's prolly just a bunk ass pos one I ended up buying a cheap new one for mine and lone and behold it didn't work even the guts looked different from my other one
I’m having similar issues. I changed my oil pressure sensor, so I had to disconnected my negative terminal on my battery but when I reconnected my battery terminal my doors won’t lock or unlock with my remote. My alarm still works but it seems like the door actuators are not synced with the remote.🤷🏻♂️
My locks sometimes work and tailgate sometimes work I did replace the button and lock module on the tailgate but do you have any idea what it also could be I’m look at the fuse soon and auto start doesn’t work do you have a video or something for that thank you
I have a 01 Silverado and it won't unlock with the keys or door buttons but it will lock when it drives and unlocks when I pull the keys out of the ignition any thoughts on how to fix it
I have a 99 Silverado 1500 and it's locking but I can't hear the unlock anymore when I unlock it from key fob 😞. thing is it doesn't lock really so when I open the door the security light comes on and truck won't start..it does it from time to time.sometimes it stsrt right away. I feel like it's related to the two relay to lock and unlock...idk
Thank you for all the information. This might be a longshot but I installed a new battery on my 2001 GMC sierra last night. After installing the battery, the three amp fuse inside the truck kept blowing. I can’t get the truck to lock or unlock with either door or the aftermarket remote start fob or the OEM key fob. From what I understand replacing the battery should not affect any of these fuses or relays. I can hear the door switch is operating and the relay is clicking, but no action at the door locks their selves. Any advice on where to begin?
all my door locks on my 1999 suburban are sluggish. they all move slightly but will not lock or unlock. Could that be a fuse or relay problem? maybe corrosion on a relay or fuse? or do the door latches need to be lubricated?
I have a 2004 Mitsubishi Endeavor all fuse and relay are good but my power door doesn't work and the remote lock. Also my headlights only go on with the key on position. Also the hazard light and dome light not working, any Idea?
Just bought a z71 2004 Tahoe and when I insert the key to unlock the door, the alarm goes off. I have to turn on the engine for it to turn off. Is there a fuse I can pull out to stop this from happening?
How do you test the rear door on the back there doors not lift a door the don't and rear door open and close but the back door does not open or close with switch or remote I have to lock it with the key yukon xl 2000
Thanks for the video. I have a 2005 Yukon slt that I’m not able to get the fobs programmed. I checked the vin and it DOES have it. I’m thinking maybe the keyless entry module is bad. I have searched and searched the internet trying to find the location of the module. Would you happen to know where it is located?
@@nloya not yet. Still searching. Going to pick up a Haynes manual tomorrow maybe it’ll help. I’ll be sure and let you know something as soon as I find it.
@@nloya I have returned with great news. I bought the Haynes repair manual it says the receiver is in the passenger door window module. After seeing the schematic I wanted to be sure so I went outside and took my door panel off and then popped the module out. After taking the module apart I saw the antenna which confirmed what the manual said. Send me your email address and I can send you the schematic.
Okay so my 2000 gmc yukon denali has a way smaller/different fuse box at the dash on the driver side. I found that the relays are actually bolted to the floor board above the brake pedal. My (brand newly replaced) door swtich will only lock and not unlock my doors. I swtiched the two relays and it does the same thing!! Anything helps. It's almost impossible to find anything on this 2000 gmc yukon. It's either the 1999 model or the newer 2001 models why does the 2000 denali seem to be a unicorn??
02 silverado 1500hd crew cab my automatic locks work when i put it in drive and unlock when i put it in park. but my switches dont work. i have replaced both switches to no avail
Quick question for you. I had an issue, long story short i've gotten the truck to where i'll get all signals, except the lock function for the passenger door - unlock works fine. I tried swapping the relays (I have all 3), tested the solenoid (functions in lock, just not when hooked up to the harness), all fuses are good. Any idea what else this could be? Does the big L DOOR connector going into the fuse box there have a relay behind it, or does it just distribute to the panel there?
Thankx Why would GM do this I've been looking for a month now for this. I have a 05 Yukon and I have pulled all the door lock relays and fuses and they are not turning off the power to the door locks everything works normal including the key fob. Followup: 3 months later still can't find the fuse or relay that controls the power to the door locks. I pulled all of the door lock relays and fuses inside on the fuse block. They still work and everything works. I don't even know what they're for. The diagram isn't even correct. I have an 05 Yukon and the owners manual is incorrect.
I have a weird issue. I replaced the master switch module in the driver's door because one of the plastic switches broke off. It otherwise worked fine. Ever since, the door locks act strangely, but only when the temperature is above around 85 degrees outside. And here in Florida, that's most of the time. The master switch won't operate the locks, and sometimes the windows act wonky too. And then, when I park the vehicle & turn it off, it resets in about 17 seconds. I've replaced the master switch module again, and the problem remains unchanged. Any ideas?
Question on my chevy silverado the passenger door unlocks but the drivers door don't. I have went through this before but it started working again. Not it's stopped. Hit the remote unlock and only the passenger door unlocks. And ideas
How about when I'm not able to lock or unlock through the key fob and on the door panel. All four do not work, fuses look good, when I try to unlock i hear the relay click but nothing on the lock. I'm guessing a bad relay?
@@alexisrios9994 yes. I did everything I could on my end and threw in the towel into the dealership. It was my aftermarket alarm that had a failing computer or message to unlock the door the whole time..the place that installed the alarm did good and replaced the whole unit. The BCM was checked, the wiring was good, the door control module were good, just a defective aftermarket alarm. I got the aftermarket alarm after an attempted break in.
@@franciscomacias9603 I’m glad to hear that, I might need to keep looking or install a aftermarket alarm , since I have the factory one. Thanks for your help.
@@alexisrios9994 yes Silverados are number 2 on the most stolen list from what I've heard. I took it Mexico this past December, has 2 attempted break-ins but ran off because the alarm. One guy got caught in front of the police station. 6.0 Chevy 1500 HD - Love driving once in a while. Did okay on the 3000 mile drive - But could have done better. Clogged catalytic converter didn't became well known till like 800 miles into the trip(Mexico) - Sucked, all good now with new cats.
@@franciscomacias9603 Yeah I know , some guy tried to stole my truck , he broke my window and the door wasn’t even locked , the good thing is that I took off the battery before, so he wasn’t going anywhere, that happened to me over there in Mexico too
2003 Chevy Tahoe, only the front drivers and passenger doors lock and unlock with the key fob and the inside drivers lock and unlock button. Both rear passenger doors and hatch glass and hatch itself don't lock with either the fobs or inside drivers door button. Any ideas?
Having an issue with my 06 Tahoe where my truck will only lock and unlock with the clicker if I either insert the key and unlock it in the door or I can press the unlock button on the door (with the window down while testing to see the issue ). What’s weirder is if I press the unlock button with the window down it doesn’t unlock the truck, it just allowed me to use the clicker to unlock it. Lmk if someone can help or has an idea of where to start. it’s driving me crazy lol
Question. If the fob is working fine, but lately I have to get really close to the car for it to work, is it a fuse / relay, or is it the receiver? Really a pain. It used to work from across a parking lot, but now I have to be right on the window.
@@LehewTech I suspect it's mostly a manufacturer known (but not paid for) issue, because when I search google, the results are mostly GM / Chevy /Caddi, all around the same year range.
@@dracozi1720 I ended up just buying a new switch panel off ebay. Paid $15 for it from autodayplus. I've had it in since September and it is still working great. The backlight for the buttons aren't quite as bright as OEM but for $15 I'm happy.
This was one of the best videos that I watched simple got to the point and showed exactly to the point of what it was
people like you are why civilization will survive. :-) thank you for taking the time to make this information available!
100%!
I agree. I’m trying to teach my sons that learning this stuff will help them troubleshoot so many things in life. People who do are far ahead of others. Thanks so much!
Terrific information. My 2003 Suburban is unlocking intermittently. I will try to switch the relays tomorrow and replace if necessary. I had no idea where to find them either so your video was very helpful. Thanks very much!
@Lehew Tech. Changed both the lock and unlock relays. All works again many thanks to you on the video.
Great video, very informative, thanks!, my problem is, only one door ( driver's side ) will not lock or unlock with the remote, or the switch, all other doors work correctly, I replaced the actuator, but it still does not work, all fuses & relays check out, wiring/connectors look good and intact, the old actuator was bond up, could not use key or slide inside to operate locking mechanism, door would not lock, new actuator in place, I can use the key to lock/unlock door now but still does not work with remote or switch, any ideas? Thank you in advance.
Did you figure it out ?
My 05 suburban has a FOB. For about 2 years now I noticed that my battery goes dead and I think the problem I was told is in the actual door switch.
It's a very slow drain after about 25 hours my battery is low. I wish there was an easy disconnect fuse that I could just pull to disconnect the power to that switch.
Good shit bro. I blew the 3 amp and swapped it out. Got my door locks back and now I can move my mirrors
You saved the day! I blew the 3 amp installing a new mirror switch. Thank you sooooo much
Thanks for this helpful video. It didn't solve my problem but it did give great information to get the analyzing started. On to the relays next. One ticks so I think it may be the problem.
i have the same problem, did you end up fixing it?
My passenger door unlocks and lock and the front and rear left door do anything but my rear right door makes the sound but doesn’t do anything
Thanks for the video. Do these same fuses & Relays apply to the back hatch also ? Thanks for your time
Bro explained it like a Pro! THX
What if all my doors lock and unlock but my key fob will not connect? Its a brand new key fob so battery is good.
I'm having the same issue, I believe it might be the keyless entry wireless receiver. I'm actually looking for a troubleshooting video on that keyless receiver but no such luck.
@@sergioterrones8724 having the same problem too
Um did u program it to ur truck??? And also where did u get the fob at cuz if it's a cheap one from somewhere it's prolly just a bunk ass pos one I ended up buying a cheap new one for mine and lone and behold it didn't work even the guts looked different from my other one
I’m having similar issues. I changed my oil pressure sensor, so I had to disconnected my negative terminal on my battery but when I reconnected my battery terminal my doors won’t lock or unlock with my remote. My alarm still works but it seems like the door actuators are not synced with the remote.🤷🏻♂️
Having the same issue in my 02 Silverado
Thank you so much for your great help!! I fixed my problem .with your tips..
Thanks for the help, it ws a 3 amp fuse
3 fuse..dude...!!! Idk how I missed it.. I was looking for a 10.. thanks for that.. right under my nose unbelievable thank you
Perfect....To the point information..... Great job
My locks sometimes work and tailgate sometimes work I did replace the button and lock module on the tailgate but do you have any idea what it also could be I’m look at the fuse soon and auto start doesn’t work do you have a video or something for that thank you
I have a 01 Silverado and it won't unlock with the keys or door buttons but it will lock when it drives and unlocks when I pull the keys out of the ignition any thoughts on how to fix it
Great video and super clear! Make one for the horn not working on my 2000 Silverado. 🙂
2007 Yukon also my battery was dead one day just got it in January but warranty kicked in and new one works can it be something else wrong
Hi dear
My 2004 gmc yukon denali the rear door and cargo not locked and unlocked even by remote or door switch
So can you explain that please ♥️🙏
I have a 99 Silverado 1500 and it's locking but I can't hear the unlock anymore when I unlock it from key fob 😞. thing is it doesn't lock really so when I open the door the security light comes on and truck won't start..it does it from time to time.sometimes it stsrt right away. I feel like it's related to the two relay to lock and unlock...idk
Thank you for all the information. This might be a longshot but I installed a new battery on my 2001 GMC sierra last night. After installing the battery, the three amp fuse inside the truck kept blowing. I can’t get the truck to lock or unlock with either door or the aftermarket remote start fob or the OEM key fob. From what I understand replacing the battery should not affect any of these fuses or relays. I can hear the door switch is operating and the relay is clicking, but no action at the door locks their selves. Any advice on where to begin?
I have a similar problem. Have you figured it out yet? Mine is a 2001 Suburban.
all my door locks on my 1999 suburban are sluggish. they all move slightly but will not lock or unlock. Could that be a fuse or relay problem? maybe corrosion on a relay or fuse? or do the door latches need to be lubricated?
I have a 2004 Mitsubishi Endeavor all fuse and relay are good but my power door doesn't work and the remote lock. Also my headlights only go on with the key on position. Also the hazard light and dome light not working, any Idea?
Good information and good video where is this yonke say hi in chandler az.
Just bought a z71 2004 Tahoe and when I insert the key to unlock the door, the alarm goes off. I have to turn on the engine for it to turn off. Is there a fuse I can pull out to stop this from happening?
How do you test the rear door on the back there doors not lift a door the don't and rear door open and close but the back door does not open or close with switch or remote I have to lock it with the key yukon xl 2000
I have an 03 tahoe and the passenger side door stitch doesn't work. I bought a new switch and still nothing? What would be the next step
Question what all of sudden from day to next all my power widows and power locks stopped working thank you
So which one is the key fob fuse?
Thanks for the video. I have a 2005 Yukon slt that I’m not able to get the fobs programmed. I checked the vin and it DOES have it. I’m thinking maybe the keyless entry module is bad. I have searched and searched the internet trying to find the location of the module. Would you happen to know where it is located?
I have this same issue with my 2005 Sierra. Any luck finding where it is located?
@@nloya not yet. Still searching. Going to pick up a Haynes manual tomorrow maybe it’ll help. I’ll be sure and let you know something as soon as I find it.
@@nloya I have returned with great news. I bought the Haynes repair manual it says the receiver is in the passenger door window module. After seeing the schematic I wanted to be sure so I went outside and took my door panel off and then popped the module out. After taking the module apart I saw the antenna which confirmed what the manual said. Send me your email address and I can send you the schematic.
Okay so my 2000 gmc yukon denali has a way smaller/different fuse box at the dash on the driver side. I found that the relays are actually bolted to the floor board above the brake pedal. My (brand newly replaced) door swtich will only lock and not unlock my doors. I swtiched the two relays and it does the same thing!! Anything helps. It's almost impossible to find anything on this 2000 gmc yukon. It's either the 1999 model or the newer 2001 models why does the 2000 denali seem to be a unicorn??
What about if the remote just wont program? Everything else works.
You are the beezkneez thanks man
Awesome explanation. Thank you.
Am having trouble with my 2006 Chevy silverado.
Is the fuse components the same as the one on the video from that 2000 Tahoe to my 2006 Chevy?
Thanks for sharing 👍 😊
02 silverado 1500hd crew cab
my automatic locks work when i put it in drive and unlock when i put it
in park. but my switches dont work. i have replaced both switches to no avail
What about if my doors unlock and lock except for the back door?
Thanks very much, great job
Quick question for you. I had an issue, long story short i've gotten the truck to where i'll get all signals, except the lock function for the passenger door - unlock works fine. I tried swapping the relays (I have all 3), tested the solenoid (functions in lock, just not when hooked up to the harness), all fuses are good. Any idea what else this could be? Does the big L DOOR connector going into the fuse box there have a relay behind it, or does it just distribute to the panel there?
Probably a bad actuator
Thankx Why would GM do this
I've been looking for a month now for this.
I have a 05 Yukon and I have pulled all the door lock relays and fuses and they are not turning off the power to the door locks everything works normal including the key fob.
Followup: 3 months later still can't find the fuse or relay that controls the power to the door locks. I pulled all of the door lock relays and fuses inside on the fuse block. They still work and everything works. I don't even know what they're for. The diagram isn't even correct. I have an 05 Yukon and the owners manual is incorrect.
I have a weird issue. I replaced the master switch module in the driver's door because one of the plastic switches broke off. It otherwise worked fine. Ever since, the door locks act strangely, but only when the temperature is above around 85 degrees outside. And here in Florida, that's most of the time. The master switch won't operate the locks, and sometimes the windows act wonky too. And then, when I park the vehicle & turn it off, it resets in about 17 seconds. I've replaced the master switch module again, and the problem remains unchanged. Any ideas?
What if the power locks work on the driver’s but not on the passenger side? Would this be indicative of a relay and or fuse or the door’s actuator?
Bcm could be culprit
I have the opposite problem pass work but not drivers what is BCM
@@neilhopkins623 Body Control Module
Thank you! 3A fuse!
Question on my chevy silverado the passenger door unlocks but the drivers door don't. I have went through this before but it started working again. Not it's stopped. Hit the remote unlock and only the passenger door unlocks. And ideas
I’m having the same problem
@Gerardo Esparza I still have figured out my problem. I can go a couple months not a problem then one day it might do it once or all day.
I don't have power at the 3 or the 15 and I can't find any info on it my keyless sets the alarm but doesn't lock or unlock
My lock and unlock just tick but doesn’t do anything. if it does it moves slow
How about when I'm not able to lock or unlock through the key fob and on the door panel. All four do not work, fuses look good, when I try to unlock i hear the relay click but nothing on the lock. I'm guessing a bad relay?
Have you found any solution yet? I’m having the same problem on my 02 Silverado
@@alexisrios9994 yes. I did everything I could on my end and threw in the towel into the dealership. It was my aftermarket alarm that had a failing computer or message to unlock the door the whole time..the place that installed the alarm did good and replaced the whole unit. The BCM was checked, the wiring was good, the door control module were good, just a defective aftermarket alarm. I got the aftermarket alarm after an attempted break in.
@@franciscomacias9603 I’m glad to hear that, I might need to keep looking or install a aftermarket alarm , since I have the factory one. Thanks for your help.
@@alexisrios9994 yes Silverados are number 2 on the most stolen list from what I've heard. I took it Mexico this past December, has 2 attempted break-ins but ran off because the alarm. One guy got caught in front of the police station. 6.0 Chevy 1500 HD - Love driving once in a while. Did okay on the 3000 mile drive - But could have done better. Clogged catalytic converter didn't became well known till like 800 miles into the trip(Mexico) - Sucked, all good now with new cats.
@@franciscomacias9603 Yeah I know , some guy tried to stole my truck , he broke my window and the door wasn’t even locked , the good thing is that I took off the battery before, so he wasn’t going anywhere, that happened to me over there in Mexico too
2003 Chevy Tahoe, only the front drivers and passenger doors lock and unlock with the key fob and the inside drivers lock and unlock button. Both rear passenger doors and hatch glass and hatch itself don't lock with either the fobs or inside drivers door button. Any ideas?
U ever figured out the problem
I have a door adjourn dinging and no doors are adjorn how can I unplug it
My doors do not respond to the clicker after programing. How do I reset the keyless brain thing in the pass window control
2005 silverado rear doors wont lock or unlock with remote. can you help?
Very helpful! Thanks
Thank you
is there anyway to disable the auto lock when the truck reaches 20 mph
Unfortunately, this is not 2003 Silverado 2500HD LT fuse box. Mine has only "LT doors" 25 AMP CB LT DOORS in low left of the box.
Having an issue with my 06 Tahoe where my truck will only lock and unlock with the clicker if I either insert the key and unlock it in the door or I can press the unlock button on the door (with the window down while testing to see the issue ). What’s weirder is if I press the unlock button with the window down it doesn’t unlock the truck, it just allowed me to use the clicker to unlock it. Lmk if someone can help or has an idea of where to start. it’s driving me crazy lol
The driver side door doesn't work I have to use my passenger door to lock other doors and the dome light won't work on either door when open
Hi
My 2000 chevy tahoe will not unlock the driver side lock with the keyless remote Can you help me ?
I have the same problem I replaced the door lock actuator and it didn't fix it 🙃 i have a short somewhere in the driver door wiring
Ok so check all the fuses even if you can use the keyless entry because it’s only the buttons on the inside that’s not working
Would this work for a 1999 Chevy Tahoe
My 05 Yukon doesnt have a BCM fuse.
It's called
PCM 1
PCM B.
Thanks fixed it was the 10 under the hood and 😊
Question. If the fob is working fine, but lately I have to get really close to the car for it to work, is it a fuse / relay, or is it the receiver? Really a pain. It used to work from across a parking lot, but now I have to be right on the window.
It's probably a weak battery in the fob
@@LehewTech No, I've tried new batteries in both fobs. I'm getting a new fob and praying it's that, and not the receiver.
@@LehewTech I suspect it's mostly a manufacturer known (but not paid for) issue, because when I search google, the results are mostly GM / Chevy /Caddi, all around the same year range.
Ahh sheit I didn't know that the recievers failed in that way
@@LehewTech Well they both work. It's just that I have to be next to the window. When I first got the car, I could be a half block away. Lol.
What if it locks and unlocks by itself?
i have a 2000 silverado and it doesn’t have a key fob that would program, anyone experienced?
What if my locks work intermittently? A lot of the time it seems like it’s weak but then it will work just fine at other times
I’m having the same problem have you found any solution yet?
@@KIQUE-jc7kc I wish. I've replaced relays, pulled the lock panel out and thoroughly cleaned it but nothing has worked so far.
@@Wopadas has anything worked ?
@@dracozi1720 I ended up just buying a new switch panel off ebay. Paid $15 for it from autodayplus. I've had it in since September and it is still working great. The backlight for the buttons aren't quite as bright as OEM but for $15 I'm happy.
I can't replicate the issue since its internment, they seem weak or only one will work.
What about Silverados extended cab
So just pull the fuse if u don't want the doors to lock
sir doing lock but not unlock