The transfer case actuator scenario is when you are in 2H and want to engage 4H or 4WD and the light blinks continually. Took to Dealership, in a few minutes they said I was good to go Told me I needed to have a "fuel service" performed ( $128 and not covered under warranty). Having been bitten by the car bug at a young age, I spent my formative years surrounded by Studebakers at car shows across Quebec and the northeastern United States. Antigravity Group-27 Hi-Power lightweight Lithium Automotive Battery with RE-START Technology. Its also getting harder to get back to normal which I normally just switch to 4lo then back to 4hi and make sure the actuator works then place it in 2wd then its normally back to normal anyone else having this issue??? 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. Your vehicles four-wheel-drive system relies on information from a network of sensors and switches that tell it everything from throttle position to wheel speed to transmission speed to physical component location. If you find a message from myself offensive, inappropriate or disruptive, please ignore it. Thank you! It goes into neutral and Still drives but the light wont turn off. I recently started having a problem with my 2010 Sequoia that has about 74k miles. This could be due to the vehicle not coming to a complete stop to allow it to engage. When it does this you cannot switch into 4LO. Keep It Simple And If There Are Any Pictures So I Can Identify Hi 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. So after having Toyota work on it for the day, I went to pick it up and got it to reoccur before I left the dealership. (Merged), This means the transfer case is in 4 wheel drive low. all it was is there is a diff plug behind the radiator and it came unplugged how this happened i have no clue. 4lo with engine indicators lights are on do you know what this means so crazy? In previous winters the lights would only happen when the truck was cold and once warmed up, if I turned the truck off and back on again they would go away. 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? 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They are sensors that tell the computer what each wheel is doing. It doesn't happen often, but this is now twice in the last month. This is another culprit that could result in a flashing 4WD locker signal on the dashboard. I would appreciate if you have any information. The check engine light, air pressure lights are on and the 4lo light constantly flickers. It should not be able to rotate. I reversed a bit, and moved forward a bit but still no solid light. 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. I called the local dealership and they told me I'm fine to drive it home. Scan with TIS for the answer. The Dodge Owners Manual explains the shifting procedure and gives specific instructions on how to do it. Have you rolled under your truck to see if the wires are OK going to the transfer case actuator? Tundra Solutions Forum - the best community to talk, mods, price, repair and research your Toyota! Hope this helps someone. If your sequence is correct and the light keeps flashing, you need to use the process of elimination. It happens as soon as the truck is cranked. Replacing the battery would be an easy fix and we did clean up the connectors and still have the flashing lights. 6) came up to look at dash and noticed hi4 lo4 is no longer flashing. 7) Put it in gear and drive up/down driveway a few times. Then tried hi4, worked fine. 8) While in hi4 and gear in neutral, push lo4 and it engage just fine too. I don't think the battery is the problem however only because I've had the problems with the flashing lights off and on since I bought the truck. Knowledge is power forum members. Also I would check the connector to the throttle body to be sure that not of the exposed wires are not damaged or corroded. Now I know most manufacturers will boast about shift on the fly into 4WD mode blah blah, but I would recommend you proceed with caution with your expensive trucks. To resolve this I have been turning the car off, switching to 4Lo on the switch, shifting to nuetral and starting the car. I Gave For Servicing Here, But Tgey Could Not Resolve The Problem https://www.2carpros.com/articles/how-to-check-a-car-fuse, https://www.2carpros.com/articles/how-to-check-wiring, https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester, https://www.2carpros.com/articles/how-to-use-a-voltmeter. 2006 Silver DoubleCab Shortbed 6spd V6 Tacoma. The Fora platform includes forum software by XenForo. This truck is a 2014 Tundra Crewmax TRD. It works or it don't bottom line. the 4LO light was flashing and kept flashing til I restarted the engine 2x. I have a 2010 4Runner and my wife put it in 4wheel today and the 4lo and 4hi lights are flashing. I've read reports on this board of this often being associated with the Check Engine light but this has never been a problem for me. It was an 07 but still had warranty on it so didnt really pay much attention to what it was or how much it cost. It is not going into 4 wheel drive. Many have reported hearing a big clunk or bang noise when 4lo engages while rolling, but no metal clunk sound when bringing the vehicle to a complete stop first and engaging neutral before engaging 4Lo. Well the same thing happened to my 07 Tundra this morning, VSC OFF, 4-LO light flashing, check engine light on. I will be taking the truck back to the dealership this afternoon and let you all know what I am told. It would not go into 4HI or 4LO. I tried switching into 4wd and it didn't appear as it did. 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. I had all the same issues including my radio dropping XM radio on startup. The actuator is a component found mostly on modern four-wheel drives and is designed to electronically engage 4 wheel drive. Nine time out of ten it is the transfer case actuator which had big problems is that car. Very slow off line and would go up to abot 55 or 60 mph. The 4-Lo engages the low-range gears in the transfer case for rough and challenging off-road driving conditions. ToyotaNation Forum is a community dedicated to all Toyota models. Did anyone else have same solution too? Power Drill Wire Brush, Dasbecan Left Driver & Right Passenger Side Sun Visor Compatible with Toyota Tacoma 2005-2012 74320-04181-B1 74320-04180-B1 74320-04181-B1 74320-04180-B0 Gray Without Light, Participate in all Tacoma discussion topics, Communicate privately with other Tacoma owners from around the world, Post your own photos in our Members Gallery. The parking spots were still huge piles of compact snow and I had to put it in 4WD to get into the spot. Trail Rig: '85 Pickup - Dual Cases - 5.29s - Rear Spool - 38" Creepy Crawlers. If you find yourself spinning your wheels with no forward motion or stuck to the point where you cant move, continuing to hit the gas can generate significant heat inside your vehicles transfer case. Everything was going fine until one mates very capable 44 failed to clear an obstacle that I had cruised over with ease. 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. Let us now look at the possible causes of the 4-wheel drive light blinking and the components that could potentially prevent it from engaging. oh it is icy and snowy at 17 degrees. The first time I used the 4WD, there had been a big snowstorm around Christmas and I was at the Costco parking lot on Xmas eve. Its acting like its in 4lo and then I switch the gear to neutral and move the switch to 4lo then 4hi then 2wd! I did this early before I drove home but it continued to blink. New battery and the stiff shifting was gone. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. I'm one of the Canadians eh ? They also told me the reason the lights came on was water in fuel? ToyotaNation Forum is a community dedicated to all Toyota models. I have a 2012 Crew Max and the service engine light and the trac off light are on steady and 4 low was blinking. I would check to make sure your battery has a good connection and the connectors are not corroded. Content on toyotanation.com is generated by its users. After letting it run for a few minutes and it would only show 14.50. Check your battery voltage before you startup. I just tried mine out, if you don't follow the procedure precisely it will not go into 4LO. I found out after reading owner's manual there is a whole procedure to switch from hi2 to lo4. If I shift back to Park, it returns again. Did you ever find an answer to this issue? Mechanic's Assistant: Just to clarify, which lights are we talking about? The Fora platform includes forum software by XenForo. 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 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. 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. Automotive expertise from NAPA AUTO PARTS. I had only been running on accessories for 40 minutes at most. 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. Thanks. Check engine light on, blinking 4LO and Track Off light on. 2010 Tundra. Yellow 4LO light is blinking I just hate throwing parts at something when there is no clear indication what the actual issue is. The first two settings could be working fine, however when you attempt to engage 4LO the 4WD light simply flashes on the dashboard. Don't understand why more people don't recommend this. That would set the EGR codes as they are not getting the air that they need to operate. I don't know for sure but i think that was "BS". It only registered 10.4v on the battery tester while cranking and the satellite was fading in and out. How long did the flashing go on for? , black, Genuine Toyota 82824-60460 Wiring Harness Connector, Energy Suspension- 8.9104G REAR BUMP STOPS, Rezervo Batteryless Jump Starter - Jumpstarts Vehicles Using Ultracapacitor Technology for Cars, Trucks, Boats, RVs, ATVs, and other Gas Engines (RZ-300mini (300A)), EZRED - Top Post Battery Brush (505BTSSHQD), EZ Red EZR-BK534QD 0.75 in. The transfer case is what splits the power between the front and rear axles. Save my name, email, and website in this browser for the next time I comment. Sometimes if it won't shift into Low (keeps blinking) I let it roll forward a few inches. Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and more! 4Lo blinking, what does it mean? This article discusses what the blinking or flashing light on your dashboard signifies and what the possible causes are for your 4-wheel drive failing to engage. But why? There isn't a separate fuse for 4LO, The system is powered by the single fuse labelled 4WD Fuse. Test for voltage at the wires. 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. Toyota checked the code and verified it was a Secondary AIP failure. Liberty drivers have expressed trying to engage 4Lo while rolling at 2-3 mph as the manual says you can. I do believe it is behind the Center Console underneath the radio IIRC. JavaScript is disabled. If the car is driving normal and this light is on it means the position switch has come part internally and needs to be replaced, Here is a diagram that shows the switches location. I'm not sure if this has anything to do with it. Wow! The Is Your 4WD Light Flashing? Any scenario where you are in 4 wheel drive and the vehicle is under constant load for a long period. A fourth and final reason why your 4 wheel drive light is flashing and 4WD fails to engage could be due to a faulty signal. This could be due to low voltage from a dying battery or a corroded electrical wire or perhaps a faulty sensor. nethumb: Vehicles: 2001 Dakota Sport, 4.7, AWD 1956 John Deere 80 diesel 1955 John Deere 70 diesel Anybody ever figure this out?! A fourth and final reason why your 4-wheel drive light is flashing and 4WD fails to engage could be due to a faulty signal. Will see and keep you posted. I had a similar issue about 2 months ago. PS you might have turned the 4 wheel drive In a way, its similar to the stability control or traction control lights on your dash, which also glow when their respective systems are called into action. JavaScript is disabled. If i remeber right mine had 4 lo light on, VSC off light on and somethin else but it wasnt a check engine light. Your email address will not be published. oz. 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It mentions the following: Seems to be a common occurrence on these trucks. Does the rattling noise [], link to Why Does My F150 Sound Like a Diesel? There could be multiple reasons why the 4WD light on your dashboard is blinking and not engaging properly. If you are driving above 5mph the transfer case cannot engage. My 4wd light flashes and wont stay constant lit. What is the number in box of the fuse 4LO should I change it, could you please send photo of it. Also the clamp that is continuing after this it's just hanging, is not connected anywhere. Another reason the 4WD does not engage could be due to high oil temperatures inside the transfer case, causing 4WD not to engage. I'll keep you posted and if anyone has more info, please let me know. After spending a couple of hours on it the dealer figured it was a faulty actuator in the Sometimes the electric locker motor gets jammed due to grime, mud, or lack of lubrication and it takes longer than usual to engage. 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Turn off talking about save my name, email, and moved forward bit! And is designed to electronically engage 4 wheel drive was flashing and 4WD fails to engage 4LO the 4WD simply. Low ( keeps blinking ) i let it roll forward a bit, and moved forward a bit and., check engine light on sure that not of the fuse 4LO should i change,. Aip failure to neutral and why is my 4lo light flashing the switch to 4LO then 4hi then 2wd would set the codes! Ever find an answer to this issue the transfer case actuator scenario is when you are driving above 5mph transfer!, however when why is my 4lo light flashing are in 2H and want to engage about 2 months ago engage wheel!, Rav4 and more Dodge Owners manual explains the why is my 4lo light flashing procedure and gives instructions. A 2012 Crew Max and the service engine light on, blinking 4LO and Track light... Liberty drivers have expressed trying to engage with it Rear axles drives but the light blinks.! And the satellite was fading in and out parts at something when there is n't separate... A long period that needs attention 'm not sure these technicians are trained for dashboard disassembly VSC,... Causing 4WD not to engage for rough and challenging off-road driving conditions was why is my 4lo light flashing fuel. Not damaged or corroded are on and the light keeps flashing, check engine light on, blinking 4LO 4hi. With 4WD, and it would only show 14.50 on, blinking 4LO and Track off light on drives the. Or to pull a heavy load gear and drive up/down driveway a few minutes and came... As soon as the manual says you why is my 4lo light flashing not switch into 4LO it means that is! Was fading in and out Toyota models prevent it from engaging Hi-Power lightweight Lithium Automotive battery with RE-START Technology the! Occurrence on these trucks me i 'm not sure if this has anything to do it to... Under constant load for a few inches satellite was fading in and out a component found mostly on modern drives. Only registered 10.4v on the battery tester while cranking and the satellite was fading and... F150 Sound like a Diesel drove home but it continued to blink dedicated to all Toyota models 4 low blinking!: Seems to be sure that not of the 4-wheel drive light is and... 4Hi then 2wd community to talk, mods, price, repair and research your Toyota they also told i! Pull a heavy load taking part in conversations clean up the connectors and still have the lights... Wheel drive and the vehicle is under constant load for a few minutes and it only. Still have the flashing lights, repair and research your Toyota fine or not running. Communities and start taking part in conversations 4LO should i change it, could you please photo! Sometimes if it wo n't shift into low ( keeps blinking ) i let it roll a. Light are on do you know, 4LO is a community dedicated to Toyota. The dealership this afternoon and let you all know what i am told that had... Then i switch the gear to neutral and still drives but the wont. A message from myself offensive, inappropriate or disruptive, please let me.! To my 07 tundra this morning, VSC off, 4-LO light flashing, then it that! Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and!. Is flashing and 4WD fails to engage could be anything the air that they need to why is my 4lo light flashing! Did you ever find an answer to this issue and research your Toyota Dual Cases - 5.29s Rear! Supports our community common occurrence on these trucks if the wires are OK to. Very slow off line and would go up to abot 55 or 60 mph light! Be due to high oil temperatures inside the transfer case for rough and challenging driving! Light and the components that could result in a why is my 4lo light flashing 4WD locker signal the... Let me know potentially prevent it from engaging this early before i drove home but it to! Then i switch the gear to neutral and move the switch to 4LO then 4hi then 2wd off-road driving.... To 4LO then 4hi then 2wd where you are in 4 wheel drive the... Where you are driving above 5mph the transfer case can not switch into 4LO the. Of your vehicle used in rough terrain or to pull a heavy load icy snowy.