I have to say, most excellent video. It explains so much. Thank you for sharing. I feel like I've been through hell and back but I did get it to work. I have a 2007 Nissan Titan, and after changing the positive battery terminal, something was clicking, dashboard was going haywire. I disconnected the bat.terminals, touched these disconnected terminals together for about 10 seconds, which drains any energy or static, I guess in the BCM or other places. Then, I reconnected the terminals to the battery and placed a battery charger on. I turned the key once to the first position, and waited a few seconds, then turned the key to the second position waited a few seconds, then tried to start and it worked. Good luck
I just found out about the BCM after buying and replacing a Tail light/ Brake light assembly just to have it do the same thing. My car had all those symptoms but I didn't understand how. Thank you for this video bro!
My GMC Sierra 2500 HD has door locks clicking intermittently, ignition start function isolation, the rpm undulates up and down while cruising, cruise control light shows on but won’t set a speed and there is a check engine light. Already changed the brake switch 8 months ago and it cleared up. Now it’s back
Very well explained 😊 I have a ford kuga diesel comes up with lossed communication with body control module cleared the codes came back and today the negative battery lead going to the car body was rusty so cleaned it and cleaned the paint off
Yep, having one ordered today. 2006 mazda 6 while lights is on if i use right or left turn signals the hazards come on! If i turn lights off the turn signals work like their supposed to. Also if i lock my doors with the key fob the hazards come on. My mechanic has one on the way. Just hopefully it won't need reprogrammed which will cost more. Fingers crossed.
My bcm on my 19 f350 is getting replaced as I type. Some of the tpm sensors have to be replaced as well. My horn , lights, hazards, tpm, ebrake chime, door locks, tranny module etc started going nuts. $2200 so far. The harness connection had corrosion but it seems to be all right. What a pain in the arse.
Could a bad BCM make my air conditioner and radio go super loud every time I turn the key? Also can it make a brand new battery turn into a dead cell? I've gone through 3 new ones
i have 2012 gmc terrain i have signal problem lights my turn right will not blick and my left rear is not working to and check all fuses and just find what causes that ...
With the key out, I can still turn on the wipers, roll down windows, the headlights stay on, etc… So the battery draws a ton of power and will be dead in an hour or so. The dealer says I can’t get a new bcm and my vehicle rejected the salvage one I brought in. Now what????
I replaced my bcm in 2019 ,now on 2024 same symptoms again,dim lights, all of my ground wires are tight,plus battery cables,when I put in park turn off engine,the speakers pop, sounds like bcm again,plus sluggish going up hill,at 55mpg plus,have new transportation 6 speed gmc 2500hd 6.0,
So if the immobilizer key light is on and the dash lights for gear isn’t lit, the headlights won’t work and I can’t start the vehicle because I can’t get the immobilizer light off or dash lights to come on. Would I need Bcm or ecm and would I need to have it programmed to vehicle first. Or can dealership flash and reprogram my original if I take it out and to them to save a few bucks on tow
Thanks for the informative video. I have an urgent request concerning a problem with my truck. This is an International truck. The DEF, check engine and the triangle lights came on. I was asked to change the Turbo Actuator. Two days later, same lights came back on. This time around, my mechanic said it's the Body Controller Module. He said there's no communication between the BCM and the Turbo Actuator. There is no loss of power from the truck. The truck runs good even when those lights came on both times. Is this really the problem? If this is the problem, can I use a used BCM or I should just go ahead and buy a brand new one? Thank you
Thanks - very helpful video! My 04 GMC Yukon has randomly exhibited the following crazy alarms, displays and behaviors: Seatbelts (when all are fastened), Tire Pressure Monitor, Service Stability Control. Once the key fob stopped unlocking and then was OK. Also the left turn signal was freezing without flashing and coming on (solid) with brake pedal. AutoZone read the following fail codes: C0196 Yaw Rate Circuit Malfunction and C0455 Steering Position Sensor Circuit Malfunction. Does all this sound like the BCM is the likely culprit? And if so, does a replacement have to be programmed by a dealer?
I have a 2019 ram 1500 limited i was driving the whole day and while driving al the lights came on the ac started to blow heat instead of cooling and the about 5 to 10 minutes the logo came back like if you turn the key on to start and then everything was back to normal it happens 5 times n 4 hour is the any body that could help me thanks
Great information! I am having a problem with an 06 300C 5.7l. My headlights turn on for a second, and relay cuts both off.is that a bad bcm? No blown fuses.
2013 ram 1500 sport. All of those issues you talked about in your video. The truck wouldn't shut off so we unhooked to battery and after hooking it back up, pretty much no power to anything but the cab light, the side mirrors have power, the push start says off, headlights, tail lights, but no dash lights or power. If this is replaced, does it have to be programmed by a shop or dealer?
Do controller radio cause my Bluetooth keep malfunctioning I reboot the computer system by remove the battery panel turn my light on Ronaldo electrical current into it and reconnected my radio started work and when I drive to work, it stopped no more Bluetooth just cut the hell off
Very good video, almost all the lights and gauges on my dash either came on or stopped working all together. Spent the day just chasing wires and checking fuses but this sounds like the answer to my problem. Thanks!
i did not as of yet.. i took out some fuses from the car that are associated with the radio and checked them and put them back and the radio started working intermittently and then just totally went out (the fuses was not damaged) i think when i Bring my car to mazda for an oil change ill have to them diagnose it.. @@DalScottGuitar
I have 2016 Chevy Silverado 2500 it shows all the signs you have described in your video of Bad BCM bought new one from Chevy dealership an asked them to program new one to truck they said had no communication to it my fuse box on passenger side has no power to it checked all fuses seem good need help is dealership just trying to get more money out of me
I suspect a bad BCM on my 2015 Q50 I see people on ebay selling the BCM and ECM as a pair with the matching Key Fob would I be able to replace both and not need to program anything ? I am assuming the car would not know the difference as long as they are both replaced with a matching set. Thoughts?
Replacing computer modules varies and depends on the vehicle and the module software. Sometimes it is a simple swap out other times it will need a software update/programed. It is best to research the information case by case.
Good stuff, My alarm keeps telling me my trunk is open but the dash doesn't indicate it is, So the alarm triggers every 30 mins. "New Alarm" Did same thing with old alarm and Also draining battery like it did with old alarm. Lights used to flicker a while back all dash lights, AC would stop working, just weird stuff but I think that was caused by a bad alternator, I have since replaced the Alternator, New battery, Cleaned battery ground cable, cleaned alternator ground cable. The only weird stuff happening is some doors won't close and sometime they will. The the trunk open is triggering my alarm and draining my batter. So I am wondering if it could also be a bad Actuator on a door or even the power trunk mechanism? I had a friend run a computer scan and check the BCM for errors he said it all came back clear. :o/ I will take a look at the ground in the BCM and also take out the bcm and smell it. I should not have to program the bcm if i remove it? all I would have to do is Remove the ground from the battery before unplugging it for inspection? Thanks for this video, very helpful insight.
Would this bcm possibly control the truck releasing? I can open it manually but not with the release on the truck, the left side of steering wheel, my remote or nothing! I've checked the wmswitch to in tge glove box! I know about that one! Any thing???
I have an 04 tahoe. Service 4x4 and brake system had popped up on display before with the check engine and service brake lights. After this I couldn't start with the key bit could remote start and it would run but feel sluggish. Eventually this went away and my key had been working for months. Had been getting a lot of squeaking and clicking under my passenger side dash, when feeling around i decided to turn on air blower on and all the dash stuff popped back up. Turned off and tried to start with key and it seems I'm back at square one. Does any of this sound familiar? Did you get a new BCM? Sorry this is long af. 😅
I am having all of those problem that you’re talking about. My headlight not bright even when I change the bulb, my headlight an My car key fob is not working my radio Bluetooth stop working and when I scan the car and it said BCM 3 fault
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I have to say, most excellent video. It explains so much. Thank you for sharing. I feel like I've been through hell and back but I did get it to work. I have a 2007 Nissan Titan, and after changing the positive battery terminal, something was clicking, dashboard was going haywire. I disconnected the bat.terminals, touched these disconnected terminals together for about 10 seconds, which drains any energy or static, I guess in the BCM or other places. Then, I reconnected the terminals to the battery and placed a battery charger on. I turned the key once to the first position, and waited a few seconds, then turned the key to the second position waited a few seconds, then tried to start and it worked. Good luck
I just found out about the BCM after buying and replacing a Tail light/ Brake light assembly just to have it do the same thing. My car had all those symptoms but I didn't understand how. Thank you for this video bro!
me right now
Ugh me at the moment
Me now
Me as well. Am I the only one with a 2013 Cruze
My GMC Sierra 2500 HD has door locks clicking intermittently, ignition start function isolation, the rpm undulates up and down while cruising, cruise control light shows on but won’t set a speed and there is a check engine light. Already changed the brake switch 8 months ago and it cleared up. Now it’s back
Very well explained 😊 I have a ford kuga diesel comes up with lossed communication with body control module cleared the codes came back and today the negative battery lead going to the car body was rusty so cleaned it and cleaned the paint off
Yep, having one ordered today. 2006 mazda 6 while lights is on if i use right or left turn signals the hazards come on! If i turn lights off the turn signals work like their supposed to. Also if i lock my doors with the key fob the hazards come on. My mechanic has one on the way. Just hopefully it won't need reprogrammed which will cost more. Fingers crossed.
What about the emergency lights going on and off while I’m driving?
My bcm on my 19 f350 is getting replaced as I type. Some of the tpm sensors have to be replaced as well. My horn , lights, hazards, tpm, ebrake chime, door locks, tranny module etc started going nuts. $2200 so far. The harness connection had corrosion but it seems to be all right. What a pain in the arse.
Could a bad BCM make my air conditioner and radio go super loud every time I turn the key? Also can it make a brand new battery turn into a dead cell? I've gone through 3 new ones
At moment it’s just a spanner light & no light when door opens, can I drive safely?
No you can not go to the police station and tell them you are breaking the law and you to be arrested and sodomized
I have a 79 corvette every thing works except my cruise control would that be my BCM online say the fuse is in the bcm what’s your thoughts
Great explanation. Thank you
i have 2012 gmc terrain i have signal problem lights my turn right will not blick and my left rear is not working to and check all fuses and just find what causes that ...
So could the BCM make it so the ignition would be messed up?
With the key out, I can still turn on the wipers, roll down windows, the headlights stay on, etc… So the battery draws a ton of power and will be dead in an hour or so. The dealer says I can’t get a new bcm and my vehicle rejected the salvage one I brought in. Now what????
The BCM has to be programmed
Does the BCM also sends singal to shifter interlock solenoid?
I replaced my bcm in 2019 ,now on 2024 same symptoms again,dim lights, all of my ground wires are tight,plus battery cables,when I put in park turn off engine,the speakers pop, sounds like bcm again,plus sluggish going up hill,at 55mpg plus,have new transportation 6 speed gmc 2500hd 6.0,
So if the immobilizer key light is on and the dash lights for gear isn’t lit, the headlights won’t work and I can’t start the vehicle because I can’t get the immobilizer light off or dash lights to come on. Would I need Bcm or ecm and would I need to have it programmed to vehicle first. Or can dealership flash and reprogram my original if I take it out and to them to save a few bucks on tow
Can a bad BCM cause your gauges not to work. Temperature, speedometer, RPM?
Thanks for the informative video. I have an urgent request concerning a problem with my truck. This is an International truck. The DEF, check engine and the triangle lights came on. I was asked to change the Turbo Actuator. Two days later, same lights came back on. This time around, my mechanic said it's the Body Controller Module. He said there's no communication between the BCM and the Turbo Actuator. There is no loss of power from the truck. The truck runs good even when those lights came on both times. Is this really the problem? If this is the problem, can I use a used BCM or I should just go ahead and buy a brand new one? Thank you
I have 97seville the dashboard lights go on for a couple minutes gos off and the fuses are good
Thanks - very helpful video! My 04 GMC Yukon has randomly exhibited the following crazy alarms, displays and behaviors: Seatbelts (when all are fastened), Tire Pressure Monitor, Service Stability Control. Once the key fob stopped unlocking and then was OK. Also the left turn signal was freezing without flashing and coming on (solid) with brake pedal. AutoZone read the following fail codes: C0196 Yaw Rate Circuit Malfunction and C0455 Steering Position Sensor Circuit Malfunction. Does all this sound like the BCM is the likely culprit? And if so, does a replacement have to be programmed by a dealer?
My wipers stopped working replaced motor and mechanism, to be told i now need bcm as it has 1 wiper setting working now(better than none)
I have a 2019 ram 1500 limited i was driving the whole day and while driving al the lights came on the ac started to blow heat instead of cooling and the about 5 to 10 minutes the logo came back like if you turn the key on to start and then everything was back to normal it happens 5 times n 4 hour is the any body that could help me thanks
Great information! I am having a problem with an 06 300C 5.7l. My headlights turn on for a second, and relay cuts both off.is that a bad bcm? No blown fuses.
2013 ram 1500 sport. All of those issues you talked about in your video. The truck wouldn't shut off so we unhooked to battery and after hooking it back up, pretty much no power to anything but the cab light, the side mirrors have power, the push start says off, headlights, tail lights, but no dash lights or power. If this is replaced, does it have to be programmed by a shop or dealer?
Did you find anything out?
Would this make it so the transmission won't shift
Out of first or second gear
Do controller radio cause my Bluetooth keep malfunctioning I reboot the computer system by remove the battery panel turn my light on Ronaldo electrical current into it and reconnected my radio started work and when I drive to work, it stopped no more Bluetooth just cut the hell off
My 03 ford f150 won't start after a rain or humidity and the dash cluster lights go crazy
I have a 2006 pontiac grand prix..and my headlights keep coming back on by themselves when car is off and today I was locked out
Very good video, almost all the lights and gauges on my dash either came on or stopped working all together. Spent the day just chasing wires and checking fuses but this sounds like the answer to my problem. Thanks!
could BCM cause the radio/stereo not to work as well?
Did you figure out your problem??
i did not as of yet.. i took out some fuses from the car that are associated with the radio and checked them and put them back and the radio started working intermittently and then just totally went out (the fuses was not damaged) i think when i Bring my car to mazda for an oil change ill have to them diagnose it.. @@DalScottGuitar
I have 2016 Chevy Silverado 2500 it shows all the signs you have described in your video of Bad BCM bought new one from Chevy dealership an asked them to program new one to truck they said had no communication to it my fuse box on passenger side has no power to it checked all fuses seem good need help is dealership just trying to get more money out of me
Did you solve your issue I’m in same boat
Would the BCM possibly cause the radio to shut off after an hour on a 2018 peterbilt 579?
Very possible but there is a lot to check and diagnose before you go replacing your bcm
I have a 2015 Camaro that the radio cuts out the dash board light go on and off my blinkers have issues. So should I check the BCM or maybe the fuse?
Maybe, Check your blinker fluid?
I suspect a bad BCM on my 2015 Q50 I see people on ebay selling the BCM and ECM as a pair with the matching Key Fob would I be able to replace both and not need to program anything ? I am assuming the car would not know the difference as long as they are both replaced with a matching set. Thoughts?
Replacing computer modules varies and depends on the vehicle and the module software. Sometimes it is a simple swap out other times it will need a software update/programed. It is best to research the information case by case.
Good stuff, My alarm keeps telling me my trunk is open but the dash doesn't indicate it is, So the alarm triggers every 30 mins. "New Alarm" Did same thing with old alarm and Also draining battery like it did with old alarm. Lights used to flicker a while back all dash lights, AC would stop working, just weird stuff but I think that was caused by a bad alternator, I have since replaced the Alternator, New battery, Cleaned battery ground cable, cleaned alternator ground cable. The only weird stuff happening is some doors won't close and sometime they will. The the trunk open is triggering my alarm and draining my batter. So I am wondering if it could also be a bad Actuator on a door or even the power trunk mechanism?
I had a friend run a computer scan and check the BCM for errors he said it all came back clear. :o/
I will take a look at the ground in the BCM and also take out the bcm and smell it. I should not have to program the bcm if i remove it? all I would have to do is Remove the ground from the battery before unplugging it for inspection?
Thanks for this video, very helpful insight.
Would this bcm possibly control the truck releasing? I can open it manually but not with the release on the truck, the left side of steering wheel, my remote or nothing! I've checked the wmswitch to in tge glove box! I know about that one! Any thing???
O yes I hv a 2009-2014 maxima
It's possible, but usually, when the BCM is bad, there are multiple issues.
I ha e ford focus 2016 they bcm is bad. If bad can it stop turning on?
Would it cause the vehicle (04 tahoe) to loose power for a split second and or lock and unlock doors while driving
I have an 04 tahoe. Service 4x4 and brake system had popped up on display before with the check engine and service brake lights. After this I couldn't start with the key bit could remote start and it would run but feel sluggish. Eventually this went away and my key had been working for months. Had been getting a lot of squeaking and clicking under my passenger side dash, when feeling around i decided to turn on air blower on and all the dash stuff popped back up. Turned off and tried to start with key and it seems I'm back at square one. Does any of this sound familiar? Did you get a new BCM? Sorry this is long af. 😅
Any idea if a used BCM replacement will change the mileage on the car?
well thats a good one
Good video.. Informative
Incredible, thanks
My radio doesn’t go on, my screen is off and the air won’t go off. 😢😢😢
I'm having the same issue
but were is it located ????????/
The location will vary and depend on the vehicle year and make. A vehicle layout can often be found using Google images.
Thank you!!
great video
I'm trying to fix the BCM in my BT-50 20074x4ute as no lights are working and the gauges don't work either
I am having all of those problem that you’re talking about. My headlight not bright even when I change the bulb, my headlight an My car key fob is not working my radio Bluetooth stop working and when I scan the car and it said BCM 3 fault