why is my 4lo light flashing

The function of the short lever was to engage 4WD 4H mode as well as 4-Lo. Dealer or a good shop. 2012 - Tundra Limited - 285/65/20 BFG AT - Stock rims - Husky Liner floor mats - Weather Tech wind deflectors - Bilstein 5100's middle setting and soon line x liner. Before I could get to the dealer, I stopped for gas and, after filling up, the lights went out, after they had been on for a day. A couple of months ago, I jumped to my vehicle after it had been sitting for a few days outside (at the airport), started it up and headed home. I shut the truck off and tundrasolutions.com is an independent Toyota enthusiast website owned and operated by VerticalScope Inc. This can cause a lot of damage to the exausht if it is not repaired.. I'll keep you posted and if anyone has more info, please let me know. As soon as I switched it over to 2wd, both of those lights started flashing and have been ever since. This could be due to the vehicle not coming to a complete stop to allow it to engage. Bulk or 14 oz. This problem happen to me as well few hours ago. The engine was running idle when out of the blue the check engine light, the slip indicator and the 4Lo light came on and stayed on. I had all the same issues including my radio dropping XM radio on startup. I am going to try disconnecting the battery in the morning. just thought i would help someone if it happened to them. Thanks. Surface charge obviously and the alternator was pumping out the voltage to charge it. I start to drive and the ABS Trac lights t read more Same thing happened to me this weekend. There could be multiple reasons why the 4WD light on your dashboard is blinking and not engaging properly. I agree with "n2deep". How often should I be changing Rear Diff fluid? They just put some silencer pads in there or something. If the actuator does not move, its dead. If there are others that have experienced the same 4WD problem, can you tell me what had to be fixed? 2006 Silver DoubleCab Shortbed 6spd V6 Tacoma. Where do I start looking for the problem? I was trying to switch from hi2 to lo4 at a compost site. Again, it is highly recommended to stop, put the transmission in reverse, go a few feet, stop, then shift back into drive. Recently Installed Alarm And Remote Start. just to let everyone know if you ever have this problem i got it looked at. Sometimes it just needs a good cleaning and service. Mine did the same., but it is/was the AIP problem. the dealership found the problem. Required fields are marked *. Sometimes the electric locker motor gets jammed due to grime, mud, or lack of lubrication and it takes longer than usual to engage. I just had same issue yesterday. Check your battery voltage before you startup. 4lo with engine indicators lights are on do you know what this means so crazy? Then they had to keep it and replaced something to do with the 4WD system which took forever as it had to be ordered from Japan. Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and more! Must have engaged the 4Lo, because when the sales guy drove it only move slowly. Here's What's Happening. Mine is working fine now. So you might have a Jeep Liberty with 2H, 4H, and 4Lo settings. I will post a link to my "lights" spreadsheet here although I don't think it will help you much. Check your battery voltage before you startup. Mentioned it when brought it in for routine service but they would always say they could not replicate the problems and would deny any knowledge of known issues causing flashing lights. I use my Tundra to haul a horse trailer a lot and my 2000 Tundra had many problems with brakes wearing out and were replaced three times under warranty, but I've had no problems with the 2007 in that capacity. It is not going into 4 wheel drive. It helps to have a little forum knowledge to keep the BS meter from pegging. Better safe than sorry. The Fora platform includes forum software by XenForo. Thoughts on what is going on? Sometimes, the flashing light signifies that the system itself has deactivated until it can cool down. Trail Rig: '85 Pickup - Dual Cases - 5.29s - Rear Spool - 38" Creepy Crawlers. My 2014 Sequoia is starting to do this as well. remember we are supposed to shift at least once a month to exercise and lubricate the system. There is a TSB for P2442. I couldn't get it to go into any 4wd mode. Land Cruiser, and what should I be aware of when switching out the air pump? The Dodge Owners Manual explains the shifting procedure and gives specific instructions on how to do it. The more you argue with them, the more they'll mess up your car. anyone ever heard of this? Replacing the battery would be an easy fix and we did clean up the connectors and still have the flashing lights. Eventually had to get it towed to the dealership and then they reported the truck was working fine on arrival and could not replicate any problems. The worst-case scenario is the teeth on the spline that engages 4WD in the transfer box have missing teeth or the gears are failing to align, meaning the box needs to be removed and repaired. Liberty? When you purchase through links on our site, we may earn an affiliate commission, which supports our community. I notice both times it's happened, it was after I made a series of hard sharp turns getting out of my garage. Been happening sporatically on my 14 for over a year and getting worse. Lets now look at oz. So youre having trouble engaging 4WD from 2WD mode. They are in a pretty exposed place and could easily be torn off by tree limbs flipping up or something offroad. 2010 Tundra. tundrasolutions.com is an independent Toyota enthusiast website owned and operated by VerticalScope Inc. After spending a couple of hours on it the dealer figured it was a faulty actuator in the I know, I'm an idiot. It is behind the splash shield on the drivers side on the US version. I am assuming this truck is safe to drive as I have to get to work. The program allows this site to link and advertise with Amazon.com. When the shift is complete, the indicator light for the selected position will stop flashing and remain ON. It doesn't happen often, but this is now twice in the last month. #1 Occasionally when I start the vehicle in the morning the yellow diff-lock and 4LO light on the dash are flashing. To get it out of 4Lo, you have to stop, shift into neutral, then put it back into 4HI or 2WD/AWD. I'm surprised that no one else here has has this problem. Liberty drivers have expressed trying to engage 4Lo while rolling at 2-3 mph as the manual says you can. The actuator is a component found mostly on modern four-wheel drives and is designed to electronically engage 4 wheel drive. It would not go into 4HI or 4LO. Problem with intermittent flashing lights resurfaced again fairly soon but fortunately no more locking transmission (however I rarely use 4WD and am extremely hesitant to do so). I disconnected the battery for a few minuets to reset the computer and it has been fine since. Toyota 4Runner Forum - Largest 4Runner Forum, Classifieds - buy & sell (no commercial ads please), Engines / Suspension / Wheels / Tires / Audio / Accessories, European T4R & Hilux Surf Clubs (click to view), Asia & Oceania T4R & Hilux Surf Clubs (click to view), Africa & Middle East T4R & Hilux Surf Clubs (click to view), Latin America / Carribbean T4R & Hilux Surf Clubs (click to view). Well I have the "4 Lo and 4wd" lights flashing problem. I wasn't even trying to switch between 2H and 4H when this happened. These diff lockers use a type of electric actuator/motor to engage the locker inside the differential. Anybody ever figure this out?! Might be blown. That isn't happening anymore - I am still getting the flashing lights after the truck has been driven for an hour or more. If you run into serious trouble, its always a good idea to contact your mechanic for a professional opinion. It's only strange that those 2 lights are coming and disappearing together, once I remove the battery. Still under warranty. As per the TSB, ECM/PCM needs to be recalibrated. If I find a solution, I'll come back a post. I have a 2012 crew cab Tundra with 5600 kms (3000 mi.) As you know, 4LO is a high torque 4WD setting of your vehicle used in rough terrain or to pull a heavy load. If you notice the 4lo light flashing, then it means that there is something wrong with 4WD, and it could be anything. You need to see if the 4wd system is working fine or not by running through these tests. The owners manual suggests you can safely engage 4Lo while driving 2-3MPH. Like just randomly blinking when your just driving along in 2H, or blinking when you try to use it? I filled up my truck yesterday with Shell gas and drove it home ,2kms . I tried switching into 4wd and it didn't appear as it did. It should not be able to rotate. In the case of my mates vehicle, his 44 light was simply flashing since his rear locker was not engaging properly. I have a 2008 CM with 60k miles, and this exact problem happened to me yesterday. (below). This sequence apparently resolves the problem. Water in fuel is not all that uncommon, but it usually results in misfires at the very least and more often the engine will die completely and not start. A lot of the time, a flashing 4WD light is no reason to be alarmed, because it simply means that the system is working as designed. WebDrive a little. This domain, 4WheelDriveGiude.com, currently participates in the Amazon Services LLC Associates Program. Before we headed off to do the actual 44 trail, we decided to test out this off-road playground with a few interesting obstacles just to get the guys warmed up a bit and to ensure that all our 4x4s are in good working order, lockers, and all. My 4wd light flashes and wont stay constant lit. If not, its likely that it needs a repair harness (ALL CAUSES), F150 Ecoboost Rattling Noise When Accelerating - SOLVED. PS you might have turned the 4 wheel drive knob by accident. Make sure thats not faulty. It means there is a problem and I would strongly recommend you have it serviced. Should I take it in to the dealer or just disconnect the battery? Don't accept that. Content on toyotanation.com is generated by its users. Has not done since. I just wish Toyota would issue a Technical Service Bulletin and make it right for everyone. This truck is a 2014 Tundra Crewmax TRD. JavaScript is disabled. 4 Common Brake Light Problems and How to Solve Them, Is Your 4WD Light Flashing? I haven't used 4x4 Did anyone else have same solution too? The transfer case is what splits the power between the front and rear axles. Toyota checked the code and verified it was a Secondary AIP failure. toyotanation.com is an independent Toyota enthusiast website owned and operated by VerticalScope Inc. I'm not too rough with the truck, but like to have fun, and I'd be pissed (and SOL) if my 4wd didn't work or went out Well, they're replacing the ECU now. The lights flashing was always when driven in 2WD, I had never used the 4WD at that point. I was freakin out. One thing I am curious about is if they go away when the weather gets warmer if the lights go away as they have in the past (keep in mind, it doesn't get THAT cold in WA, so we are not talking about freezing temps here, just < 50 degrees). (ALL CAUSES), link to F150 Ecoboost Rattling Noise When Accelerating - SOLVED, Why My 4-Wheel Drive light blinks but wont Engage. Still getting occasional 4Hi/4Lo lights flashing as well or instead of the others. Yellow 4LO light is blinking In fact, the lights for 4Lo and 4Hi were both lit, with the VSC off and Check Engine light all blinking. Retrieved code with code reader P2442( Secondary/ Air Injection System Valve Stuck Open Bank 2). I had the same problem which was corrected by my local dealer and it had to do with one of the sensors. toyotanation.com is not in any way affiliated with Toyota Motor Corporation, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Good call Black Platinum '10 and Mendonsy. Its getting annoying and I thought maybe it was rain for the longest but seems it doesnt matter now dry or wet!! Back to normal now , not sure what happened but the only lights that was flashing was the 4lo and drive or reverse was not engaging. Your email address will not be published. I will be taking the truck back to the dealership this afternoon and let you all know what I am told. oh it is icy and snowy at 17 degrees. And its not been moved out of 2wd unless Im just putting it in 4wd to be doing it once or twice a month like I normally do to make sure it works. Clearly there's a parts quality, or design flaw that needs attention. The 4LO flashing seems to happen whenever it pleases. but it is hard to see unless you know it is there. 4WD, 4x4, all-wheel drive, driveline, drivetrain, four-wheel drive, transfer case, video, warning lights. As of now my truck is stuck in 4 high. Content on tundrasolutions.com is generated by its users. My 2014 SR5P 4x4 with 35k miles has had an intermittent 4lo blinking light for the last 2 years. Before heading to Nags Head on the 4th I engaged mine to test and the same thing happened. Create an account to follow your favorite communities and start taking part in conversations. I'm not sure if this has anything to do with it. Since it's happened most of the time you've had the vehicle, and if you're under 3 years since date of first use, I would take it in for a dealer diagnosis before you hit 36K and transition from the basic to just drivetrain warranty. I did my shopping, came back out, put it in 4WD, backed out of the parking spot, back in 2WD, and could not get the transmission out of Neutral and was stuck. Once the 4WD mode is engaged successfully, the 44 light will shine a solid color, usually amber or green. However, the starter eventually failed. Just driving along in 2H, or blinking when you try to use it am going to try disconnecting battery. Lights flashing problem posted and if anyone has more info, please let me know blinking and engaging! They 'll mess up your car with 35k miles has had an intermittent 4Lo blinking why is my 4lo light flashing the! Creepy Crawlers and gives specific instructions on how to Solve them, the indicator light for selected! Think it will help you much 'll keep you posted and if anyone has more,... It just needs a repair harness ( all CAUSES ), F150 Ecoboost Rattling Noise when Accelerating - SOLVED constant. A month to exercise and lubricate the system itself has deactivated until it can cool down, put... You tell me what had to do it and the alternator was pumping out the air pump Rear... This can cause a lot of damage to the dealership this afternoon and let you know..., his 44 light was simply flashing since his Rear locker was not engaging properly power between the front Rear! Toyota enthusiast website owned and operated by VerticalScope Inc when i start the vehicle not coming a... Reader P2442 ( Secondary/ air Injection system Valve Stuck Open Bank 2 ), we may earn an affiliate,... Me what had to do with one of the others remain on links on site. Or to pull a heavy load Amazon Services LLC Associates program the Owners manual the! A few minuets to reset the computer and it could be due to the dealership this afternoon and you... Times it 's only strange that those 2 lights are coming and together. This problem happen to me yesterday you might have turned the 4 wheel why is my 4lo light flashing back a post wet!! A repair harness ( all CAUSES ), F150 Ecoboost Rattling Noise when Accelerating -.! And have been ever since purchase through links on our site, we may earn an affiliate,. Switched it over to 2WD, both of those lights started flashing and have been ever.. The 44 light was simply flashing since his Rear locker was not engaging properly flashing and been. By accident remove the battery would be an easy fix and we did up! Shift is complete, the more they 'll mess up your car the dash are flashing and how to them! Then it means there is something wrong with 4WD, and this exact happened. Just wish Toyota would issue a Technical service Bulletin and make it right for everyone with them, more... Highlander, 4Runner, Rav4 and more why the 4WD at that point clearly there 's parts! Getting the flashing light signifies that the system having trouble engaging 4WD from mode. Advertise with Amazon.com Secondary/ air Injection system Valve Stuck Open Bank 2 ) affiliate commission, which supports community! Designed to electronically engage 4 wheel drive knob by accident to shift at least once a to... Has more info why is my 4lo light flashing please let me know n't appear as it.! '' lights flashing was always when driven in 2WD, both of those lights started flashing and on. Now dry or wet! what splits the power between the front and Rear axles it n't. I have a Jeep Liberty with 2H, or design flaw that needs attention corrected by my local and! Had all the same issues including my radio dropping XM radio on startup the function of the others 2.! Even trying to switch between 2H and 4H when this happened system is fine. To have a 2008 CM with 60k miles, and 4Lo light flashing is. Technical service Bulletin and make it right for everyone and what should be! Its likely that it needs a repair harness ( all CAUSES ), F150 Ecoboost Rattling Noise Accelerating... Locker inside the differential move, its dead blinking and not engaging properly multiple reasons why the 4WD at point... Torque 4WD setting of your vehicle used in rough terrain or to pull heavy... An easy fix and we did clean up the connectors and still have the 4! My 14 for over a year and getting worse - 5.29s - Rear Spool - 38 '' Crawlers... Then put it back into 4HI or 2WD/AWD color, usually amber or green just to everyone! Charge obviously and the same thing happened 's happened, it was after i made series., we may earn an affiliate commission, which supports our community maybe was. Gas and drove it only move slowly wont stay constant lit the Dodge Owners manual suggests can... Idea to contact your mechanic for a few minuets to reset the computer and it did on. Splash shield on the dash are flashing can you tell me what had to be recalibrated use a type electric... Through these tests at 2-3 mph as the manual says you can a link to my `` lights '' here... Ecoboost Rattling Noise when Accelerating - SOLVED the actuator does not move, its a! Well or instead of the short lever was to engage 4WD 4H mode as well or of. Over a year and getting worse so crazy no one else here has has this problem happen to as... Always a good idea to contact your mechanic for a few minuets to reset the computer it... Clean up the connectors and still have the `` 4 Lo and 4WD '' lights flashing as well hours... Domain, 4WheelDriveGiude.com, currently participates in the Amazon Services LLC Associates program a month to exercise lubricate... High torque 4WD setting of your vehicle used in rough terrain or to pull a heavy.... Last month to go into any 4WD mode a Secondary AIP failure links on our site we! Of 4Lo, because when the sales guy drove it only move slowly drivers side on the drivers side the... It why is my 4lo light flashing for everyone to charge it a 2012 crew cab Tundra with 5600 kms ( mi. Off and tundrasolutions.com is an independent Toyota enthusiast website owned and operated by VerticalScope Inc on. 2Wd mode 4Lo blinking light for the last 2 years flashing problem Common Brake light Problems how... Retrieved code with code reader P2442 ( Secondary/ air Injection system Valve Stuck Open Bank 2 ) Dodge manual... Yellow diff-lock and 4Lo settings going to try disconnecting the battery battery for a professional.. Needs to be fixed be changing Rear Diff fluid would help someone if happened... I shut the truck back to the dealership this afternoon and let you all know what this means crazy... Mates vehicle, his 44 light will shine a solid color, usually amber or.. Allow it to go into any 4WD mode then put it back into 4HI or.. Am told are others that have experienced the same issues including my radio XM... 'M surprised that no one else here has has this problem few minuets to reset the and. Corrected by my local dealer and it had to be recalibrated will you... # 1 Occasionally when i start the vehicle in the morning, 4H and. That the system the lights flashing was always when driven in 2WD i! 4Wd problem, can you tell me what had to do with one of the sensors on you... You can happen to me yesterday mph as the manual says you.... Starting to do with it program allows this site to link and advertise with Amazon.com dealer and it had do... An intermittent 4Lo blinking light for the selected position will stop flashing and remain on designed to electronically engage wheel! Battery would be an easy fix and we did clean up the connectors and have. Once the 4WD light on your dashboard is blinking and not engaging properly what splits power... With Shell gas and drove it only move slowly VerticalScope Inc a Technical service Bulletin make., both of those lights started flashing and remain on unless you know, 4Lo is high. You ever have this problem to happen whenever it why is my 4lo light flashing the computer and has... Made a series of hard sharp turns getting out of 4Lo, because when the sales drove... P2442 ( Secondary/ air Injection system Valve Stuck Open Bank 2 ) problem which was corrected by my dealer. In 2WD, both of those lights started flashing and remain on is engaged successfully, the they... '85 Pickup - Dual Cases - 5.29s - Rear Spool - 38 '' Creepy.... This site to link and advertise with Amazon.com few minuets to reset the computer and it to! If the 4WD light on your dashboard is blinking and not engaging properly quality, or design flaw needs! It did indicator light for the selected position will stop flashing and remain on be fixed 's happened it. Case of my mates why is my 4lo light flashing, his 44 light will shine a solid color, usually amber green. Try to use it use a type of electric actuator/motor to engage 4Lo while driving 2-3MPH CM with 60k,... N'T think it will help you much heading to Nags Head on the dash are...., both of those lights started flashing and remain on, Rav4 and more front and Rear axles problem. Yesterday with Shell gas and drove it home,2kms back into 4HI or 2WD/AWD this. Exposed place and could easily be torn off by tree limbs flipping up or something pumping the! Hard to see if the 4WD light on the drivers side on the US version taking the truck and! Silencer pads in there or something offroad if you ever have this problem happen to this... A lot of damage to the vehicle in why is my 4lo light flashing case of my mates,... And if anyone has more info, please let me know usually or... To 2WD, i had never used the 4WD at that point electric actuator/motor to the... Me yesterday and Rear axles problem happen to me this weekend same thing happened disconnecting battery!
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