Vtm-4 light acura mdx

Having issues with the vtm-4 lock light will not go off and the engine light also stays on as well. HELP . ... Acura MDX SUV Forums. 732K posts 85.4K members Since 2000 Acura MDXers Forum - a community where enthusiasts discuss engines, tires, service and everything you need to know about the MDX! Show Less . Full Forum Listing ...

64 posts · Joined 2010. #9 · May 2, 2011. Update: Replaced the alternator although it tested fine in the store. With the new alternator I now have a flashing battery light in addition to the 4 other lights. The new alternator in the car is testing the same problem as before. The charging system is below 13V.Since the engine is part of the powertrain, the VTM-4 will light up if there is a problem with the engine. Fix the engine problem and the VTM-4 light will go away, provided that you didn't have any other problems with other components of the powertrain such as the transmission or the rear differential. 2001 MDX. Share.DRLs are on more than your headlights. They burn out faster and should be replaced regularly. One of the easiest fluids to top off - learn how to open the hood and where the reservoir is on your car. This free video provides the steps to diagnose and clear a check engine light on a 2004 Acura MDX 3.5L V6. The video also provides steps on how to ...2005 Acura MDX 3/16 - CEL and VTM-4 lights on AWD not working P0301, misfire cylinder #1, leak down test showed 55% leakage. reinstalled cyl head once repaired by machine shop. 5/16 - Routine service, …Audio Unit, Rear Controller and Screen, DVD Player Unit: with Rear Entertainment System, VTM-4 Control Unit (2003-2004) 20 A: 2: VSA Modulator-Control Unit (+B FSR) ... Acura MDX fuel pump fuse, Supplemental Restraint System (SRS) ... Trailer Lighting Connector, VTM-4 Lock Switch Light Ambient Iights (2005-2006) ...

Turned of ac and shudder lessened and I was able to drive home. Next morning drove to dealer when both check engine and VTM-4 lights came on. Dealer checked for codes and found P0505 "Idle control system failure. Found bad idle air control valve.Could be loose/damaged/corroded wiring/plug to a wheel speed sensor or bad sensor, there are other possibilities also. Since the vtm-4, vsa and abs warning light was going on and off, codes should be store which could direct you to the issue. Some of the auto parts suppliers offer free code reading like Pepboys, Nappa, Advanced auto …See more on our website: https://fuse-box.info/acura/acura-mdx-yd1-2001-2006-fusesFuse box diagram (location and assignment of electrical fuses) for Acura MD...The VTM4 light in the 2002 Acura MDX is an indicator that signals a problem with the Vehicle Stability Assist (VSA) system, specifically with the Variable Torque Management 4-wheel drive system (VTM-4). This subheading will provide a detailed explanation of what the VTM4 light means and the potential causes for it to stay on.Engine/VTM lights on I was just having this problem in my 03 MDX. I went to Autozone and had them run the code for me. They do it for free. It turned out to be an oxygen sensor code - a fuel mixture and emissions related problem - you can still run the car ok with it.

The vtm-4 light just came on my 2002 Acura Mdxcluster. I scanned it and : P1656 came up It means : Transmission cpu to vsa Module . Communication line confirmed. ... Acura MDX SUV Forums. 733.6K posts 86K members Since 2000 Acura MDXers Forum - a community where enthusiasts discuss engines, tires, service and everything you need to know about ...bonbmdxman. Overall you know the 6 speed has been around and works well, while the 9 speed is new and has doubts/quirks. Unless the new feature packages (acurawatch plus, advance without entertainment, etc.) work in your favor or you prefer the electronic shift lever, I would recommend the '15.Replace an interior fuse. Got a short fuse? Don't blow a fuse, change it! 2006 Acura MDX Touring 3.5L V6. See all videos for the 2006 Acura MDX. This free video provides the steps to diagnose and clear a check engine light on a 2003 Acura MDX 3.5L V6. The video also provides steps on how to read the 2003 Acura MDX 3.5L V6 trouble code.Vtm-4 light on and check engine light on my vehicle is a 2006 acura mdx,both lights came on at same time Posted by carol_hopson on Sep 22, 2009 Want Answer 02005 Acura MDX with the VTM-4 Light on. Car seems to run fine with the light on. The VTM-4 Light is not on all the time and is NOT blinking when it does come on. Engine light is also on. I ran codes a … read morewhy or what is causing vtm-4 and check engine light 2002 acura mdx. after a few minutes if I turn the vehicle off and restart, the vtm-4 light goes out but the check engine light remains on. 2002 Acura MDX AWD with Touring Package-Maintenance & Repair. flashing light in D5 4 Answers.

Sonny hill wip.

When I depress the VTM4 button on my 2001 Acura MDX, the light comes on briefly and then turns off. I do not have any maintenance (check engine) lights on the dashboard. How can I verify that the vehi ... Acura MDX 2004. CEL and VTM-4 light came on.Sometimes the VTM-4 light comes on, sometimes the engine light flashes but when not flashing it stays on... Where are the spark plugs on the 06 mdx, I thought I'd start there but can't seem to find them ... Acura MDX SUV Forums. 734.5K posts 86.3K members Since 2000 Acura MDXers Forum - a community where enthusiasts discuss engines, tires ...Steps to Turn off VTM-4 Acura Mdx. Follow these steps to turn off the VTM-4 system in your Acura MDX: Start your vehicle and press the "MENU" button on the steering wheel to access the instrument panel menu. Use the navigation buttons on the steering wheel to scroll down and select "Vehicle Settings."DaveJM on April 16, 2018. Hello, VTM-4 stands for "Variable Torque Management" related to the Super Handling All Wheel Drive SH-AWD system your MDX has. The warning light can come on in relation to a failure that causes the check engine light to also come on. Focus on diagnostic testing for the check engine light; repairing a common failure ...why or what is causing vtm-4 and check engine light 2002 acura mdx. after a few minutes if I turn the vehicle off and restart, the vtm-4 light goes out but the check engine light remains on. 2002 Acura MDX AWD with Touring Package-Maintenance & Repair. Acura Mdx 2002 Navigation (Time) 2 Answers.

Hold the lock button on your key fob for two seconds to arm the system. When properly activated, you should see a red LED light on your key fob blink twice to signal that the security features are active. The Acura MDX dashboard features a turn signal indicator light, which indicates when the turn signals are in use.2005 Acura MDX Specifications Release; Photo; August 31, 2004 — Torrance, Calif. POWERTRAIN. Engine Type. 3.5-liter, SOHC VTEC 60-degree V-6. Horsepower, SAE Net ... VTM-4™ Variable Torque Management 4-wheel drive. Transmission. Electronically controlled, 5-speed automatic with Grade Logic Control. Ratios (:1) 1st 2.693 2nd 1.566The Best Years: 2006, 2005. 2005 and 2006 are Acura's best and relatively more reliable MDX years of this generation. Under the hood, the engine option largely remained the 3.5-liter J35A3 SOHC 24-valve V6 engine with VTEC, paired with an improved 5-speed automatic transmission.May 25, 2020 · 2005 Acura MDX 3/16 - CEL and VTM-4 lights on AWD not working P0301, misfire cylinder #1, leak down test showed 55% leakage. reinstalled cyl head once repaired by machine shop. 5/16 - Routine service, … 2005 Acura MDX Touring HI, I have a 2005 Acura MDX Touring Edition. It has 135000 miles on it. I bought it with no check engine lights on. A year later, My check Engine light came on and VTM-4 Light came on also. I noticed car vibrates when I have it on and on park. Shakes and gas is miles are horrible.What does a VTM-4 light mean on a 2001 Acura MDX? VTM4 is pronounced as Variable Torque Management, and its component is a four wheel drive system on the Acura MDX. The most common reason for these warning lights is related to an overrunning EGR valve system. You must scan the Vehicle Code(s) of Your Mdx to find the warning sign.2002 MDX CEL on and VTM-4 light on. My 2002 MDX has 125K mi and recently the check engine light has been coming on, intermittently, as well as the VTM-4 light coming on intermittently. I had the codes checked with Auto Zone and they were all cylinder misfiring codes. I took it in to a mechanic, and they said it is possible I got a bad batch of gas.acura mdx 2004 vtm-4 and car engine check light on. car was shaking initially then we switched off vtm-4 button. shaking stopped but engine check light still on. please diagnose … read more MASTER TECHMay 29, 2022 ... in this video I will share with you! how to diagnose and fix one of the causes of an ABS Light, VSA light and Check Engine Light that stays ...Usually there is debris in the blower motor. Just need to drop out the blower motor to remove the debris. 2004 Acura MDX check engine and VTM4 light. Solid. 250k. Have 2006 mdx touring. Got check engine light followed by. Motive Power Technician Di...

2001 acura mdx, I,m the original owner. VTM-4 light and check engine lights are on. Its driving beautifully, but MPG has started to decrease. New tires and brakes yesterday, as well as new front perip … read more

1. Press the VTM-4 Lock button. 2. Move the shift lever to D or D . 3. Turn the ignition to LOCK (0). The VTM-4 Lock will temporarily disengage when the vehicle speed exceeds 18 mph (30 km/h). It will automatically engage again as the speed slows below 18 mph (30 km/h). The button light will remain on.Hi, Got my 04 X around 22K mile, started on 87 octane at about 23K (don't know what the previous owner used). 4 days ago, the engine and VTM-4 light showed up. Took it in for a check today and the service advisor just notified me that the Oxygen sensor is out. Is there a relationship...VTM-4 LIGHT is the 4x4 option you can use when your in the auto shift gears 1 and 2. When you put the shifter in 1 or 2 gear, you can push the VTM-4 button on dash and you will engage the 4 wheel drive constently. If you switch out of 1st or 2nd gear it will disengage automatically. The VTM-4 also works in reverse gear. Hope this helps.The Check engine light turned out to be a bad O2 sensor, as expected. But the VTM light didn't go away. After a WEEK, dealer didn't have an idea what the heck it was. They replaced the ECU AND the VTM control module, with no success. Talk about mega bucks down the drain. To make a long story short, it was the Mass Air Flow Sensor in the engine.Hi, Got my 04 X around 22K mile, started on 87 octane at about 23K (don't know what the previous owner used). 4 days ago, the engine and VTM-4 light showed up. Took it in for a check today and the service advisor just notified me that the Oxygen sensor is out. Is there a relationship...2005 Acura MDX 3/16 - CEL and VTM-4 lights on AWD not working P0301, misfire cylinder #1, leak down test showed 55% leakage. reinstalled cyl head once repaired by machine shop. 5/16 - Routine service, …They are: 1. VSA System Light. The light listed simply as VSA is the system indicator light. If it stays on, it is letting you know that there is some problem with the MDX’s VSA itself. When the light comes on, Acura suggests getting someplace safe and restarting the engine. If the VSA light doesn’t come back on, you are good to go.Engine/VTM lights on I was just having this problem in my 03 MDX. I went to Autozone and had them run the code for me. They do it for free. It turned out to be an oxygen sensor code - a fuel mixture and emissions related problem - you can still run the car ok with it.Hi, Got my 04 X around 22K mile, started on 87 octane at about 23K (don't know what the previous owner used). 4 days ago, the engine and VTM-4 light showed up. Took it in for a check today and the service advisor just notified me that the Oxygen sensor is out. Is there a relationship...acura mdx 2004 vtm-4 and car engine check light on. car was shaking initially then we switched off vtm-4 button. shaking stopped but engine check light still on. please diagnose … read more MASTER TECH

Hollywood 18 showtimes port richey.

High tide at ocean isle beach.

Sep 24, 2013 · NewMDXOwner. 805 posts · Joined 2005. #2 · Sep 24, 2013. When the "Check Engine Light" goes on it usually drags the VTM-4 light on with it. The VTM-4 light only means there is something wrong with your drivetrain, which includes the engine. Once you fixed the cause for the CEL, the VTM-4 light will go off by itself. 2001 MDX. ENGINE LIGHT/vtm4. Maintenance/Repairs. acura, mdx. NELCA December 15, 2017, 7:30pm 1. My 2004 MDX light came on, checked by ind. mechanic as misfiring valves. Was told by Acura dealer safe. to drive it in to dealer ship to have it checked. They came up with same diagnosis, was told the valve needs. to be adjusted.Genuine 48310-RDL-003 Control Unit (Vtm-4) fits 2003-2006 Acura MDX. AcuraPartsWarehouse offers 48310RDL003 with great deal. ... (Vtm-4). Our Acura parts and accessories are expedited directly from authorized Acura dealers strategically located all across the U.S. and are backed by the manufacturer's 12 month, 12,000 mile warranty.Acura / MDX / 2005 / 2005 MDX - VTM-4 and check... 2005 MDX - VTM-4 and check engine light on, then idle. what is the issue? 2005 Acura MDX. Asked by Visitor in Minneapolis, MN on . July 25, 2018. Hi, I faced this problem today. I pulled over and stopped the engine completely. Turned back on, check engine light is still on.Steps to Fix the Vtm-4 Light. If you notice that the Vtm-4 light is illuminated on your Acura MDX 2005, follow these steps to diagnose and resolve the issue: Step. Action. 1. Check the brake fluid level. 2. If the brake fluid level is low, top it up with the recommended brake fluid. 3.2005 Acura MDX with the VTM-4 Light on. Car seems to run fine with the light on. The VTM-4 Light is not on all the time and is NOT blinking when it does come on. Engine light is also on. I ran codes at O'Rielly's and came back with P0154 however the VTM-4 light was not on at the time i ran the codes.2) You might have a problem with your keyfob remote - if a stray drop of water got into it, it could be intermittently sending lock / unlock / alarm requests to the car. Probably the easiest way to check this is to remove the battery from the keyfob (s) and see if the problem stops. stxnpx. Like.I have an '04 MDX with 207,000 miles. There is a light coming on that says "VTM-4" and stays on until I turn the car off and start it again. There is no particular time that it comes on. It just happens randomly. My mechanic cannot get into the computer that controls this so we don't know exactly what going on or what to do. ….

Hold the lock button on your key fob for two seconds to arm the system. When properly activated, you should see a red LED light on your key fob blink twice to signal that the security features are active. The Acura MDX dashboard features a turn signal indicator light, which indicates when the turn signals are in use.Acura MDX 2004. CEL and VTM-4 light came on. Have had some some trouble with the local Honda dealers and they were too busy to look at it, and figured it was time to change coil packs and plugs anyway. So, I changed coil packs and plugs. I used Autozone and have bosch plugs, you mentioned that in this case aftermarket can cause trouble.May 23, 2022 · If the VTM-4 light comes on accidentally, it indicates that the system is not working properly and needs to be reset. In order to reset the VTM-4 system, follow these steps: Park the vehicle on a level surface and turn off the engine. Remove the VTM-4 fuse from the fuse box. Wait for 30 seconds before replacing the fuse. Hi I have 2003 Acura MDX touring with a 133,000 miles in the check engine light and Vtm-4 light is on took it to Auto Zone code reader P0301,P0302,P0303,P0304,P0305,P0306,P0300and P0455 Evap very larg … read more"What Does It Mean When A VTM 4 Light Comes On?Watch more videos for more knowledgeWhat Is VTM 4 Light? - YouTube https://www.youtube.com/watch/bYvFBN-Msq4Wh...habbyguy is correct, any trouble code set in the ECM/PCM ( IE check engine light ) will automatically turn the VTM-4 light on and disable the VTM-4 system - with mine a bad O2 sensor turned on both. ... Acura MDX SUV Forums. 733.6K posts 86K members Since 2000 Acura MDXers Forum - a community where enthusiasts discuss engines, tires, service ...A lot of torque on the bottom end. While driving, the check engine light, VSA light, and VTM light all turn on. When they are on, from a dead stop at a light I can put the pedal to the floor and it accelerates like its in idle til (really slowly) until it hits like 2.5k on the tachometer. Then the car starts picking up speed.Acura MDX – fuse box diagram – under-hood Subfuse Box. №. A. Component (s) or Circuit (s) Protected. 1. 20. Audio unit (with rear entertainment system), Rear controller and screen (with rear entertainment system), OVD player unit (with rear entertainment system) *4. VTM-4 control unit *1,*2. 2. Vtm-4 light acura mdx, The flashing check engine light indicates at the time when it is flashing that the actual misfire is occurring. Since the spark plugs and coil packs were replaced and …, With some codes its normal for the VTM4 to come on after a CEL. Usually doesnt mean anything. P2631 - O2 Sensor Pumping Current Trim Circuit High. From researching, it may be the front A/F sensor. Autozone could probably tell you which one it is for sure. ***2001-2006 MDX FAQ***. 2002 Subaru Impreza WRX Wagon., SOURCE: i have a 2004 acura mdx and the book says i have 5. 1 under left side of the dash 2 right side of engine compartment 3 behind under hood fuse/relay box 4 behind right kick panel there is an auxiliary fuse box next to the battery. Posted on Mar 07, 2010. Not Helpful., Looking for a novel way to add some color to your holiday party? This simple hack lets you set a string of Christmas lights to dance to the beat of your tunes. Looking for a novel ..., 1 post · Joined 2016. #1 · Dec 20, 2016. My wife has a 2004 MDX with 244k and the CEL & VTM-4 have came on and went off here recently. Now that the winter has came they have came on and stayed. I took it to get the light checked and I was told that I was misfire in all cylinders and a large vacuum leak. I have replaced the Y-pipe and all 6 ..., The issue I have come across on my brothers 03 mdx is that I have swapped out the sensor and did a fluid service. The light turned off temporarily but switched back on within an hour of driving (30 miles around town intermittently). ... Acura MDX SUV Forums. 734.5K posts 86.2K members Since 2000 Acura MDXers Forum - a community where ..., Acura MDX 2005. Problems: VTM-4 light on dashboard. VTM-4 lock can't be engaged. D5 Gear Indicator on dashboard blinks continuously after driving for about 5 miles. Sluggish drive when driving more than 75mph. Sometimes even at slower speed. Additional Info: Transmission got fried recently., I have a 2004 MDX Touring. Yesterday I noticed that several lights in my car were on including the VSA and VTM ones. The vehicle starts with no problem but when cold the rpm does not go higher than 2000 even when floored. When warm, the rpm does not go higher than 3000. I have already check the ETC fuse in the secondary hood fuse box, the ECU ..., It could be an indicator of a larger transmission problem if it is coming from the vent in the trans. The VTM-4 will not work with the check engine light on. So fix the 2 sensors and then test the VTM-4 to see f it still isn't working. Ask Your Own Acura Question., Procedure. The following procedure will allow you to read codes and reset the check engine light on Acura cars. Locate the. OBD-II Port under the dashboard on the driver's side. This is a 16-pin port. All 1996 and newer ACURA vehicles have this port under the dashboard. Plug your handheld scanner into the OBD-II port., Dec 22, 2013 · 2002 MDX CEL on and VTM-4 light on. My 2002 MDX has 125K mi and recently the check engine light has been coming on, intermittently, as well as the VTM-4 light coming on intermittently. I had the codes checked with Auto Zone and they were all cylinder misfiring codes. I took it in to a mechanic, and they said it is possible I got a bad batch of gas. , I don't know why, but on my '01 MDX everytime an emission related problem popped up (EGR, IAC, etc..) the VTM-4 light would go on together with the "Check Engine" light. As for the D5 light blinking, it indicates a problem with the transmission, and that's probably why the cruise control stops working., 1. Press the VTM-4 Lock button. 2. Move the shift lever to D or D . 3. Turn the ignition to LOCK (0). The VTM-4 Lock will temporarily disengage when the vehicle speed exceeds 18 mph (30 km/h). It will automatically engage again as the speed slows below 18 mph (30 km/h). The button light will remain on., 2002 MDX CEL on and VTM-4 light on. My 2002 MDX has 125K mi and recently the check engine light has been coming on, intermittently, as well as the VTM-4 light coming on intermittently. I had the codes checked with Auto Zone and they were all cylinder misfiring codes. I took it in to a mechanic, and they said it is possible I got a bad batch of gas., 2006 acura MDX with lights on: ABS, !, BRAKES, VTM-4 & VSA. Dealer says I have a "bad VSA modulator" and VTM is a separate issue. Cost of modulator repair is $2500. Just wondering if this sounds legit … read more, Must Be in 1 or 2 To Use VTM Lock! NOT 'D'. Just a guess, cause I always forget that MDX is not like a Ford Explorer, where you just press the button while moving at any low speed, in any gear. Make sure you are stopped, gear lever in 1 or 2, Not D. Whitfang is correct. Dealer told me the same thing on my 04 MDX., fixed. So I can confirm for you that "bank 2 sensor 1" is the o2 sensor located furthest from the firewall, top position in the converter. Fortunately the easiest of the 4 sensors to replace. Throughout this ordeal, the engine light, AND the VTM-4 light have been on (the latter periodically turning off)., 1) Put your right foot on the brake. 2) Shift the MDX into R, 1 or 2 (which one you choose depends on how fast you plan to go and which direction - R=Backwards) 3) Press the VTM Lock button (if you are in 1, 2 or R, it should stay lit) 4) Drive slowly over loose ground. If you go above 20 or 25 mph, it will turn itself off automatically., Steps to Turn off VTM-4 Acura Mdx. Follow these steps to turn off the VTM-4 system in your Acura MDX: Start your vehicle and press the "MENU" button on the steering wheel to access the instrument panel menu. Use the navigation buttons on the steering wheel to scroll down and select "Vehicle Settings.", 3G TL Problems & Fixes - VSA warning and engine light (can NOT accelerate while driving!) - This has happened a few times the last couple of months (randomly). While driving, usually when I stop at a traffic light, the engine light, VSA light, and the ! warning light would turn on and after that when I try to..., 2001 acura mdx vtm-4 and check engine light on. Posted by Anonymous on Apr 04, 2013. SOURCE: warning lights srewdriver,vtm-4 and engine light are on. Bring it to a dealer immediately. VTM-4 means the 4WD is off, possibly because of the engine line or vice versa. SOURCE: We where parked outside an., Acura Model: MDX Body type: SUV / Crossover Doors: 4 doors Drivetrain: All-Wheel Drive Engine: 290 hp 3.5L V6 Exterior color: Platinum White Combined gas mileage: 22 MPG Fuel type: Gasoline Interior color: Brown (Tan) Transmission: 9-Speed Automatic Mileage: 111,377 NHTSA overall safety rating: 5 Stock number: A039590 VIN: 5J8YD4H37LL039590, When I depress the VTM4 button on my 2001 Acura MDX, the light comes on briefly and then turns off. I do not have any maintenance (check engine) lights on the dashboard. How can I verify that the vehi ... Acura MDX 2004. CEL and VTM-4 light came on., So, I have a 2001 MDX and the cel and the vtm-4 lights are on. As well as the d5 light blinking. I have gone to AutoZone and I have pulled the codes myself. They are as follows: p0118 p0123 p0113 p1498 p0453 p0710 It is hard to start in the morning, and it does not read the engine temp. it doesn't shift until 3700 rpm's and here is the real ..., One day, the check engine light came on, followed by the VTM 4 light. The only real symptom - Answered by a verified Mechanic for Acura. ... 2005 acura MDX 112k miles. vtm-4 light and engine outline light in orange comes on and off frequently. runs a tad rough at idle. replaced timing belt, water pump, etc. recently. prior replaced plugs. ..., VTM4 light. You may want to consider taking off the gauge cover to change the light if you don't want to risk breaking the button. To remove it you just have to remove the 2 screws above the gauges, move the steering wheel all the way down and pull out on the cover. Once the cover is off, unplug the connectors to the indicator button on each side., Browse the best March 2024 deals on Acura MDX vehicles for sale in Kokomo, IN. Save $5,878 right now on a Acura MDX on CarGurus., Light Mode; menu Log in ... On the 2002 the rear VTM-4 fluid was to be changed at 7,500, then 15,000 and then at 30,000 miles. ... 7 Year/100,000 Mile Acura Care Extended Warranty, Removed MDX Logo from Hatch, 2003 Headrests & Leather Armrest, Center Row Full Headrests, Cargo Tray, Genax Rear Brush Barz & Cargo Net. ..., a trouble chart. VTM-4 LIGHT is the 4x4 option you can use when your in the auto shift gears 1 and 2. When you put the shifter in 1 or 2 gear, you can push the VTM-4 button on dash and you will engage the 4 wheel drive constently. If you switch out of 1st or 2nd gear it will disengage automatically. The VTM-4 also works in reverse gear., My Acura MDX 2006 VTM4 light is on, failed to pass the emission inspection. There're 8 trouble codes in the report. ... 2004 mdx had a vtm-4 code, Replaced all 4 axles and both. replaced all 4 axles and both diff fluids and trans fluid. after replacing and clearing vtm-4 code and tried to drive it, would drive, then would not go over 2000 rpm ..., When it comes to maintaining the appearance of your Acura MDX, using genuine touch-up paint is essential. Whether your vehicle has suffered from a small scratch or a minor chip, to..., Turned of ac and shudder lessened and I was able to drive home. Next morning drove to dealer when both check engine and VTM-4 lights came on. Dealer checked for codes and found P0505 "Idle control system failure. Found bad …, Acura calls its unique system VTM-4, for variable torque management four-wheel drive. We'd describe it as clever, light, quiet, and electronically sophisticated. Basically, the MDX operates as a ...