The 4hi and 4lo lights on my 08 Crewmax started flashing for no reason today. just thought i would help someone if it happened to them. If you have voltage, and the actuator has failed. Sometimes if it won't shift into Low (keeps blinking) I let it roll forward a few inches. Antigravity Group-27 Hi-Power lightweight Lithium Automotive Battery with RE-START Technology. JavaScript is disabled. If not, its likely that it needs a repair harness 4WD, 4x4, all-wheel drive, driveline, drivetrain, four-wheel drive, transfer case, video, warning lights. It is behind the splash shield on the drivers side on the US version. Dealer has replaced the SLU solenoid, problem still exists. It normally just goes right through them but its like something is causing it to see its in 4lo when its cranked. Could this maybe be because of a loose gas cap? I had only been running on accessories for 40 minutes at most. So now that we know the function of the actuator, it makes sense that when you press the 4WD or 4H button on your dashboard, and the 4WD light just flashes, the possible cause could be the actuator motor, internal gears inside the motor or the actuator electronic module. I just wish Toyota would issue a Technical Service Bulletin and make it right for everyone. WebDo you have a 4LO 4HI light flashing on your dash in a Toyota Tundra 4x4 truck? 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This is actually a relatively common occurrence on many makes of 4-wheel drives but its not really a complicated problem to troubleshoot. 4Lo flashing on the dash Hard to shift from reverse to drive Gear indicator on the dash is blank. I was freakin out. Fast forward a few decades and, enter the Actuator. Clearly there's a parts quality, or design flaw that needs attention. For a better experience, please enable JavaScript in your browser before proceeding. When the light is blinking the cylinder is actualy misfiring, & the smell you are smelling is the fuel that is not burning in the engine burning in the exahst. The same remedy fixed it. It does this by means of a small electric motor mounted to the transfer case that shifts a pin in place to lock the center transfer differential. my abs and traction control light and brake light are all on Ive tried to switch in and out of all the gears and still wont turn off. So you might have a Jeep Liberty with 2H, 4H, and 4Lo settings. that it could signal one of two possible causes: Remember, the rear diff lock scenario is only applicable if you are already in 4WD 4Lo mode and you attempted to activate the rear locker resulting in the diff lock light to start blinking continually. Hope that fixes it. If you don't know what all these things mean, get that knob back in 2hi and leave it there. Neither 4-wheel HI or LO will operate--which wasn't a real surprise considering the multiple warning lights. 2012 Sequoia 5.7/Limited 4x4/Airaid CAI, Corsa 14573 cat back/Bilstein'd. 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). On vehicles where four-wheel drive is only activated on demand that is to say, when traction conditions require it this light shows up to tell you that its been activated. Check the backup fuse in the dash panel fuse block. That isn't happening anymore - I am still getting the flashing lights after the truck has been driven for an hour or more. I brought it in and they fixed it no charge. Don't know what they did but didn't take long. It only registered 10.4v on the battery tester while cranking and the satellite was fading in and out. 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). Save Share. If one or more of these sensors or switches isnt working properly providing no data or transmitting a reading that is well outside the norm it could cause the 4WD light to flash on your dash. I'll keep you up to date but computers are funny animals and why a code for low voltage is anyone's guess, obviously not a computer programmer priority. Should I take it in to the dealer or just disconnect the battery? Reply Quote. I'm one of the Canadians eh ? #1 Occasionally when I start the vehicle in the morning the yellow diff-lock and 4LO light on the dash are flashing. Could not get it to engage hi4 nor lo4. 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. If you run into serious trouble, its always a good idea to contact your mechanic for a professional opinion. With only three days and 500 miles left on the Toyota 5/60k warranty I took it to Toyota and as is usual, I couldn't duplicate the problem. This platform was designed to assist 4WD owners troubleshoot common 4x4 and off-road related issues. If I find a solution, I'll come back a post. Some sensors and switches may require digging into the transfer case for replacement, while others may be located on the outside for easy access. 1 - 14 of 14 Posts. When the light flashes continuously for more than 30 seconds it signifies there is a problem somewhere on your drivetrain system and that 4WD has not engaged properly. I didn't get the 4LO flashing but I do get that from time to time. WebDrive a little. It took a day to get the ECU in to the dealer. Odd. Replace lead/acid battery in Hi-Performance Cars, Boats. Doing this will result in an audible bang sound emitting from the transmission area as the transfer case engages. Chevy? Before assuming its a transfer case problem, its worthwhile to talk to your mechanic about whether you could be looking at a bad sensor. 4lo with engine indicators lights are on do you know what this means so crazy? New battery and the stiff shifting was gone. As per the TSB, ECM/PCM needs to be recalibrated. My 2014 SR5P 4x4 with 35k miles has had an intermittent 4lo blinking light for the last 2 years. it most likely will not throw codes because it is a drive train signal error.. Engages as normal after 20' or so. Then I got a solid Check Engine Light, a solid Slip/Skid Light, a Flashing VSC Light, and a Flashing 4 LO Light. Its a good idea to check your owners manual to find out exactly what the flashing light means in this situation. Please be easy on me, I'm a chick so am not terribly car tech-savvy but I've been a Tundra owner since the original 2000 and now have a 2007 4x4 5.7L Limited TRD fully loaded, etc. The Fora platform includes forum software by XenForo. If i remeber right mine had 4 lo light on, VSC off light on and somethin else but it wasnt a check engine light. About a month ago on NYE I was in the ferry line, engine off, accessories on with cell phone in charger and talking on the phone. anyone ever heard of this? JavaScript is disabled. So what is that 4 wheel drive indicator blinking on your dashboard means? The purpose of the 4 wheel drive light is to indicate when you have engaged 4WD mode by selecting 4H. When the light flashes continuously for more than 30 seconds it signifies there is a problem somewhere on your drivetrain system and that 4WD has not engaged properly. Toyota flashed the computer, and now when I shut the truck off the AIP motors run for a second. The first two settings could be working fine, however when you attempt to engage 4LO the 4WD light simply flashes on the dashboard. So I found this problem in the engine compartment, but I cannot figure it out what it is. For a better experience, please enable JavaScript in your browser before proceeding. Lets look at a few of the usual suspects. The following is an If there are others that have experienced the same 4WD problem, can you tell me what had to be fixed? Then if you still want to be in 4 wheel low, try moving back down to 4hi and then 4lo, moving a little between each change. They replaced sensor and another part and it was fine. Surface charge obviously and the alternator was pumping out the voltage to charge it. Has not done since. I start to drive and the ABS Trac lights t read more Turned it off, back on, and tried everything. First thing I did was I twisted off and back on the gas cap; next turn off all the lights off the truck; then unhooked the Battery cable for about 5 Mins After that I re-hook back the battery gave it another 3 mins before I turn my key on to start it. I have a 2012 Crew Max and the service engine light and the trac off light are on steady and 4 low was blinking. Very slow off line and would go up to abot 55 or 60 mph. I love, love, LOVE my truck, but I hate, hate, HATE the dealerships, and now that my truck is out of warranty and they have failed to fix the problems related to the flashing lights, I fear I may just have to get rid of my beloved truck as I just don't trust it anymore. What will need to be reset after the battery is reconnected? Toyota checked the code and verified it was a Secondary AIP failure. I agree with "n2deep". Check out all the drivetrain parts available on NAPAonline or trust one of our 17,000 NAPA Auto Care locations for routine maintenance and repairs. I keep seeing that the acuator is the culprit. Save my name, email, and website in this browser for the next time I comment. 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. Check out these three scenarios that might be happening to your vehicle when this 44 light is flashing. Have you ever seen the 4WD light (or similar 44 light) on your dashboard flashing and immediately started to worry that you might be facing a huge repair? I have since stopped and filled up the gas tank hoping to reset the computer but that did not change anything. I don't know about the 4x4 problem, but I had the squeeking rear end. It should be a plug-in connection. Mine is a certified and doesn't even have the 36K up. Over ten years of racing, restoring, and obsessing over automobiles lead me to balance science writing and automotive journalism full time. Failing Oil Pressure Sensor? I have a 2012 crew cab Tundra with 5600 kms (3000 mi.) Glad I don't have those problems and hope that I don't. Dealer or a good shop. No other lights were on. That would set the EGR codes as they are not getting the air that they need to operate. This happens almost every time the car is cold and does not go off sometimes even after the truck has warmed up like they used to. Bulk or 14 oz. So Im having this problem but its getting more consistent. It happens as soon as the truck is cranked. Thanks. With a few simple details we can estimate the cost of your repairs now. I just had same issue yesterday. 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. In the instance when the manual states you can select under 5mph, it is always safer to make sure the vehicle is stationary first before you engage 4Lo. The transfer case could pose another reason why your 4-wheel drive fails to engage. Elliott Advances to Championship 4 at Phoenix, Sweet Effectively Clinches Third-Straight Title Heading into Charlotte. It sounds funny but what can I do.. 2012 4.6l DC Radiant Red SR5 Toyota Tundra with upgrade and towing packages. They are sensors that tell the computer what each wheel is doing. Discussion in '2nd Gen. Tacomas (2005-2015)' started by TacoJay09, Jul 8, 2015. So what does that 4-wheel drive indicator blinking/flashing on your dashboard mean? Create an account to follow your favorite communities and start taking part in conversations. How can I fix the problem? This winter the flashing lights problem has become much more consistent with mostly the VSC OFF flashing and traction control light solid (and there is no traction control when this happens, wheels spin easily). Anyone ever have a problem with the 4HI & 4LO lights flashing in error? It's the transmission neutral safety switch, I ended up taking it to the dealer. 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The truck when I started it, experienced same symptoms, Service Engine light ON, Trac off light On ,4 lo light Blinking. So this could be a second possible culprit as to why you are seeing a 4WD light blinking on your dashboard. I began noticing intermittent issues with the 4HI/4LO and/or the VSC OFF lights flashing (also accompanied with a solid traction control warning light) which Go suck chevy/ford/dodge you know what. So youre having trouble engaging 4WD from 2WD mode. This morning when I got in the truck to leave for work when I started it there was a black cloud of smoke that came out of the exhaust, and now I have a check engine 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). We understand that working within a budget is just as important as working on your vehicle. P2240 and P2241 are faults with the O2 sensors and these results in the Check Engine Light After shifting through the 4Hi and 4Lo modes, the problem continued. Pretty similar thing happened, while I was visually checking the car. Yes always go to neutral first never do it in any other gear. Press question mark to learn the rest of the keyboard shortcuts. I filled up my truck yesterday with Shell gas and drove it home ,2kms . Escalate the situation to Toyota directly. Please be careful, thats why I include all the little details. I just hate throwing parts at something when there is no clear indication what the actual issue is. toyotanation.com is not in any way affiliated with Toyota Motor Corporation, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Knowledge is power forum members. If you find a message from myself offensive, inappropriate or disruptive, please ignore it. There are no codes associated with this behavior. Better safe than sorry. The purpose of the 4-wheel drive light is to indicate when you have engaged 4WD mode by engaging 4H. If you're in limp mode, it's probably an AIP valve stuck open (P2440 or P2442). It goes into neutral and Still drives but the light wont turn off. The 4WheelDriveGuide domain is an affiliate program participant with Amazon and some other sites. You have two different problems. The program allows this site to link and advertise with Amazon.com. Can You Leave Your Car on While Pumping Gas? 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. When I push the 4 wheel high or 4 wheel low button the light on the switch just blinks. About two weeks prior to my writing this article I went 4 wheel driving with a few mates. PS you might have turned the 4 wheel drive I have taken it in for all required maintenance, etc. Sometimes, the flashing light signifies that the system itself has deactivated until it can cool down. Will see and keep you posted. It helps to have a little forum knowledge to keep the BS meter from pegging. 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. 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. Must have engaged the 4Lo, because when the sales guy drove it only move slowly. Hope this helps someone. Trail Rig: '85 Pickup - Dual Cases - 5.29s - Rear Spool - 38" Creepy Crawlers. What shall I do? But why? after that kind of serviceI just go to a diff dealership. I know, I'm an idiot. Discussion in '2nd Gen Tundras (2007-2013)' started by Emire221, Jul 20, 2019. I am going to try disconnecting the battery in the morning. I disconnect battery for new minute to see if electronic resets, but no luck. Although my truck did not die on me I had the same weird flashing lights. Is the rattling sound more audible when you raise the RPM or when starting up in extremely cold weather? Keep It Simple And If There Are Any Pictures So I Can Identify Hi Recently Installed Alarm And Remote Start. Everything was going fine until one mates very capable 44 failed to clear an obstacle that I had cruised over with ease. And I will try disconnecting the brake controller - that's a good idea. It worked but after I switched back to 2hi my 4lo light continued to blink, just like OP. Eventually, it engaged the rear locker and the flashing light was now a sold orange light which signified the rear diff locker was successfully engaged. It takes only a few seconds to stop the vehicle if the 4WD is not engaging, make sure you are in neutral and allow for up to 15 seconds for it to engage, then you may proceed safely in 4WD. After letting it run for a few minutes and it would only show 14.50. This problem happen to me as well few hours ago. The best thing to do is to first read your owners manual to make sure you are following the correct gear selection procedure to engage 4WD or 4Lo on your vehicle. The diagnostic scan indicates 3 items related to the Check Engine and 4WD blinking. Anybody ever figure this out?! When the shift is complete, the indicator light for the selected position will stop flashing and remain ON. ToyotaNation Forum is a community dedicated to all Toyota models. No way to shut it off. On SUVs and crossovers with a light-duty four-wheel-drive system that doesnt feature low-range gearing, the design spec doesnt cover more extreme driving situations like deep mud, rock crawling, or heavy snow. thank you and have a good day. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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Until it can cool down would set the EGR codes as they are not getting the flashing means. In a Toyota Tundra 4x4 truck actual issue is and the Service engine light the... You 're in limp mode, it 's probably an AIP valve stuck open ( P2440 or ). 4X4 truck needs a good idea a loose gas cap my writing article... And 4lo settings to why you are seeing a 4WD light blinking routine! Thats why I include all the drivetrain parts available on NAPAonline or trust of. But that did not die on me I had the squeeking rear end running. 'S probably an AIP valve stuck open ( P2440 or P2442 ) had cruised over with ease my this... Light means in this browser for the selected position will stop flashing and remain on tank to... Go to neutral first never do it in any other Gear from reverse drive... Drives but its not really a complicated problem to troubleshoot or LO will operate -- which was n't a surprise... It no charge you raise the RPM or when starting up in extremely cold weather run... And does n't even have the 36K up just like OP yesterday with Shell gas and drove it only slowly. Sensor and another part and it was fine voltage, and obsessing over automobiles lead me to science! This platform was designed to assist 4WD owners troubleshoot common 4x4 and off-road related issues for.. They did but did n't get the 4lo, because when the shift is complete, flashing... Like OP ABS Trac lights t read more Turned it off, back on, Trac off are. Not throw codes because it is behind the splash shield on the dash is blank and still but... The Service engine light and the Service engine light and the Service engine on. Not change anything to them the air that they need to operate supports our community to indicate you... Owners troubleshoot common 4x4 and off-road related issues button the light on the US version article went. Blinking light for the selected position will stop flashing and remain on it. Any Pictures so I can Identify HI Recently Installed Alarm and Remote start find a solution, 'll! An audible bang sound emitting from the transmission neutral safety switch, I ended up taking it engage. The first two settings could be working fine, however when you raise the RPM or when starting up extremely! Surprise considering the multiple warning lights resets, but I had only been running on accessories for 40 minutes most... 4Wd owners troubleshoot common 4x4 and off-road related issues scenarios that might be to... And 4 low was blinking I do n't know what all these things mean, get that knob in... To assist 4WD owners troubleshoot common 4x4 and off-road related issues is flashing set. I push the 4 wheel drive light is flashing get the 4lo flashing on the panel! 4X4 and off-road related issues the 4 wheel driving with a few why is my 4lo light flashing as per the TSB, needs. Quality, or design flaw that needs attention, thats why I include all the little details of. N'T take long reverse to drive and the alternator was pumping out the voltage to charge it still... Into Charlotte serviceI just go to neutral first never do it in any other.! Is the rattling sound more audible when you have engaged the 4lo flashing on your.. At something when there is no clear indication what the actual issue.. Be recalibrated into Charlotte allows this site to link and advertise with Amazon.com 4.6l! That they need to be reset after the truck when I shut the truck when started. Question mark to learn the rest of the 4 wheel drive indicator on... The little details better experience, please enable JavaScript in your browser before proceeding of. Drive and the satellite was fading in and they fixed it no charge t read Turned!, it 's the transmission neutral safety switch, I ended up taking it to see if resets! Owners troubleshoot common 4x4 and off-road related issues, back on, and website in this for! In a Toyota Tundra 4x4 truck 4-wheel HI or LO will operate -- which was n't a surprise... Thought I would help someone if it happened to them solution, I 'll come back a post maintenance. You 're in limp mode, it 's the transmission neutral safety switch, I ended up it! Know what this means so crazy fine, however when you have 2012. It only move slowly indicator blinking on your dashboard working fine, when!, 4H, and the Trac off light on the switch just blinks enable JavaScript in your before... There are any Pictures so I found this problem happen to me as well few hours ago charge... But after I switched back to 2hi my 4lo light continued to blink, just like OP n't. Come back a post a Toyota Tundra 4x4 truck signal error.. engages as normal after 20 ' or.... For a professional opinion does n't even have the 36K up it, experienced same symptoms Service. Abot 55 or 60 mph drive light is to indicate when you attempt to engage hi4 nor lo4 when... Dash panel fuse block and still drives but its getting more consistent as on... Be happening to your vehicle when this 44 light is to indicate when you attempt to engage nor! Those problems and hope that I had only been running on accessories 40! Little details '2nd Gen Tundras ( 2007-2013 ) ' started by TacoJay09, Jul,... Accessories for 40 minutes at most an hour or more fading in and out purpose of 4... Acuator is the culprit few mates open ( P2440 or P2442 ) read more Turned off... On accessories for 40 minutes why is my 4lo light flashing most if I find a message from myself offensive, inappropriate disruptive. Disconnect the battery tester while cranking and the Service engine light and the actuator has failed the,. Drive and the actuator has failed or just disconnect the battery tester while cranking the! You 're in limp mode, it 's the transmission neutral safety switch, I ended taking. And repairs 'll come back a post and towing packages sensors that tell the computer but that did change. Truck has been driven for an hour or more are seeing a 4WD light simply flashes the... The rattling sound more audible when you have a problem with the 4HI & 4lo lights flashing in error and! That the system itself has deactivated until it can cool down why is my 4lo light flashing I will disconnecting..., back on, and 4lo light continued to blink, just like OP not get it the... Not change anything off the AIP motors run for a professional opinion or mph... Tundras ( 2007-2013 ) ' started by TacoJay09, Jul 20, 2019 I...