lankanboy1

I got a 05 Tl Auto with traction control light on as soon as i start driving couple of meter my Vsa comes on. got the code read and came to 84-1 sensor logic failure.

well this what happen first few months back, my ABS VSAand traction control comes intermittently, and my front passenger wheel bearing was bad so i changed the bearing after that The ABS VSA TC was on so i get the code read and found all theese

1.11-1 Right front wheel speed sesor open or short
2. 21-1 Right front pulsan failure
3.-Battery Voltage low ( CAR WAS PARKED FOR 1 WEEK before the scan" ACURA BATTERY ")
4.83-1 Ecm Pcm related failure
5.86-1 Can Related failure

After clearing all those only
11-1 Right front wheel speed sesor open or short Came back

so i got the front pass wheel sensor replaced after that i get only TC light on as soon as i start driving i get the Vsa light on So i get it scanned and i get 84-1 sensor logic failure What now ?

I hate cars

You damaged the wiring to the wheel sensor, damaged the sensor itself, or damaged the reluctor ring or forgot to replace the reluctor ring.

lankanboy1

whats the reluctor ring ?
were it is ?
is it on the axel ?

lankanboy1

So i get my hands on The Gna600 Scanner witch the dealer use and found out that it has 2 codes now 84-1 and 86-1 and i cant seem to clear the codes for some reason.

i dont think the reluctor ring is damaged because all the wheel speed sensor is giving the correct speed.

TLGuyNY

I'm having the same problem right now just came on tonight.

I hate cars

Does your scanner show individual wheel speed? The vehicle speed sensor is on the transmission, not the wheels. This is what's displayed when you look at vehicle speed.

Macoyle

Was there ever a fix for this? I have the same issue

Macoyle

For anyone searching or wondering the dealer has to reset the computer, no way around it

lankanboy1

its been so long i dont remember how i fixed it but i changed one of the wheel sensor the calibrated the sensor and every thing worked fine after that

NJAcura2004

I'm having the same problem. If anyone see this I just replaced both my front hub bearings today and am getting a 84-1. I made sure the new bearings are in the right way and i cleaned the wss sensors. ECU reset? Can I do a battery hard reset or does Acura have to do it. I work at a shop so hopefully they'll hook me up

Project_CLean

iTrader: (2)

Might have to take it to Acura, "VSA neutral memorization procedure", basically a Reset that they perform with the HDS.

Kajan_8

my car had the same problem and just got it reset and it works. use a good shop scanner to do it. i used verdict 07 from snap on and it worked. try this if you cant get a good scanner. http://ww2.justanswer.com/uploads/ac...20_Binder1.pdf

dont need to run to the dealer for this. lol

I hate cars

I know this is old but did you have the ignition on at any point while everything was apart?

gerardo_mejia

A very easy fix my dear all, just put the car in a flat surface, with switch OFF, shortcut pins 4 and 9 from ECU port, turn swith on (WITHOUT BRAKE) and whrn the ABS light comes off press the VSA button, the ! symbol will turn off, VUALAA

hoping it will be useful....

Darkwave

Hi guys, I have a similar issue. I have a 2005 Acura TL, automatic transmission. My VSA light comes on intermittently and the rpm, speedometer and temperature gauge drops to 0. Acura scanned the system and retrieved a 86-1 VSA code. Has anyone encountered this issue and what was the fix? Any help pls......

F(x)

86-1 VSA Code only? As per service manual, check connections at Gauge control Module

Darkwave

What is the gauge control module? Is that the gauge cluster itself? Also, am I supposed to check connection between the ABS/VSA modulator and gauge cluster?
Just to clarify.
Thanks for the information, I truly appreciate it.

F(x)

Gauge Control Module is the cluster assembly. Is there a VSA light on the dash, or any other lights lit?

Darkwave

Yes, the VSA light comes on randomly, but resets with every key cycle.

emegge23

I did fallow this procedure and fix the problem, you must do it, nothing to lose.

Error Code 84 - VSA sensor neutral position memorization - Acura TSX Forum

Darkwave

The VSA error code that I have is 86-1. The procedure that you are recommending is for the 84-1 error code as for as I know. Do you think this will work for the 86-1 code?

Michael Hinchey

Can anyone tell me when the procedure of the neutral position relearn needs to be done? My car has the constant vsa symbol on and I would like to remedy the issue. My car was sitting for 9 months, battery was dead, and tires were flat. I had everything fixed including the idle control motor which solved my check engine light. Are any of these things related to why those lights would be on? From what i read it could have been when the mechanic went to check codes. Or the tow guy damamged something when hooking it up? Anyone have a past knowledge with any of this? Thanks

Darkwave

Error Code 84 - VSA sensor neutral position memorization - Acura TSX Forum

Darkwave

That's the link for the VSA relearn procedure, I hope it helps you.
I don't know what my VSA problem was, very since the winter started the light hasn't come back on. I'm waiting to see when the warm weather rolls around if the code comes back.

Michael Hinchey

I couldn't do the procedure myself. I tried to short the 9 pin several dif ways and for some reason it is not responding. Maybe the switch is bad but the cruise is still working weird if it is bad unless they work independent for some weird reason. Thank you tho.

Michael Hinchey

What I really wanted to know or better understand why that light comes on so I can maybe blame it on the mechanic.

csmeance

i believe you short pin number 4 and 9 together. I used a jumper wire kit from radioshack for $7

https://www.radioshack.com/products/...ant=5717555653

Michael Hinchey

Day three with the lights off after the dealer cleared the lights. YEAH Hope this helps anyone with this issue.

Darkwave

It's been a year and I thought I got lucky with this problem. My VSA light came back
on 2 days ago and one thing that I noticed was that the a/c doesn't work when the vsa light is on. As soon as I reset the the VSA system with a key cycle, the a/c works fine.
Help pls.

csmeance

Not sure where you are located but it seems related maybe to temp as it's getting colder out! Maybe the connection shrunk due to temp and is now causing the issue!

Check the wires behind the gauges first and make sure all the pins are inserted well into every connector!

Also the A/C might be a sticking A/C relay

Darkwave

I live in Ontario, Canada. A lot ppl are telling me to check the battery cables and grounds. I found that my positive battery cable was very corroded under the red plastic shield. I cleaned it, so hopefully that was it. The problem is, it's so intermittent.

CaliBud916

Just had a similar issue. ABS VSA Traction control lights came on, all sorts of BS codes. Cleared all codes, but traction control light was still on and vsa would come on after driving for a few min. I cleared all codes and did the VSA relearn procedure and that fixed my issues.

Darkwave

Hey guys, I had a problem with my speedometer, rpm and temperature gauge dropping to zero and back up. Sometimes my A/C won't work either.
I was diggingaround and found an issue with my multiplex control unit/ under dash fuse box.
There was this strange green-like fluid on the fuse box and connectors. There is this one connector in particular that was saturated in this fluid and it had a wire that ran to the VSA on/off switch.

Darkwave

The connector


If you take a close look at these pictures you'll see the fluid , both on the connector and fuse box.

WyeKnott

Did you do something that resolved the problem? Because I'm having the same issue with my 2005 TL and haven't seen anyone report a fix.

Darkwave

Hey there, sorry for the late reply.
I would have to say that the attempt that I made, fixed the problem. The light or the erratic behavior of the gauge needles has not happen since I cleaned the fuse box and connectors. Pls let me know what you find.

tds166

So I got a code 84 with y tester. I tried shorting pics 4&9 and tried to do the reset in the linked instructions above. i.e. press VSA button .5 seconds after ABS light goes out and then .5 seconds after ABS light comes back on. However. I don't get the two blinks of the ABS light for the reset of VSA. I get the 8 slow blinks and then 4 fast of the ABS light, giving me the same code 84.

tds166

Figured it out from another post. Had to reset the ABS first.

BigKillerDFW

So I too had the dreaded 84-1 code after doing a lot of front-end work. I followed the directions at the oft-cited video, linked below for the next unfortunate soul who has to deal with this.

Quick summary:

1. Get a small paperclip.
2. Jump the 4 and 9 spot (video has a diagram)
3. Per video instructions, reset ABS. Even if you don't think it needs it.
4. Leave paperclip jumper in 4 to 9 position, you don't need to do the alligator clip thing.
5. Per video instructions, reset VSA.
6. Remove the jumper.

In the video, all the lights go off as soon as it resets. On my car, lots of lights came on and stayed on until I removed the jumper. Once removed, everything was off. I drove it around the neighborhood and all the lights are off! I'll report back after I put more miles on it.

Thanks to this community for all the help!

N2Stooges

I had this same VSA error on my 2004 Acura TL recently. I thought I would share my experience as mine was an oddball situation.

My problem started about a year ago when my airbag light started turning on intermittently then it stayed on all the time. I was concerned about taking my vehicle to the dealer for service as I knew they would try and empty my pockets. I read out whatever OBD2 codes I could using a cheap-o OBD2 dongle that connects to my Android phone via Bluetooth. I ran the Torque app on my phone but no errors were present. I read up on airbag issues on the Internet and realized that I needed a “special” OBD2 reader to be able to read out SRS (airbag) system issues. As such, I purchased a Foxwell NT630 Pro OBD/SRS/ABS code reader for approximately $100 on eBay.

Using the Foxwell scanner I was able to retrieve 2 codes from my vehicle’s SRS and ABS systems. The SRS system had permanent code # 61-10 “Open in driver’s side seat belt buckle switch”. There was also an ABS/VSA system permanent code # 61-1 “Battery Voltage Failure”. The buckle switch problem was the cause of the airbag light. The ABS/VSA “Battery Voltage Failure” was likely due to the car battery having gone completely flat after not being driven for a month. There were no ABS or VSA fault lights on the vehicle’s dash though.

I used the Foxwell scanner to reset all the SRS and ABS codes which I then read back to verify they were both in fact cleared. I used compressed air to blow out the driver side seat belt buckle as I had read on other forums that this may fix the issue. It didn’t. The 61-10 code reappeared immediately. The ABS/VSA 61-1 code was still cleared though. I read on the Internet where Acura has a lifetime warranty on seatbelt components which includes the buckle switch. I called my local Acura dealer to confirm that buckle switch replacement would be a $0 repair. Great, I thought, so I made an appointment with the dealer. I did not drive the car at all that same day.

The next day when I pulled the vehicle out of the garage I notice that besides the usual airbag warning light, there were 2 more warning lights on the dash. These were the “/!\” and “VSA” indicators which both have to do with the VSA function. Pressing the “VSA Off” button on the dash had no effect. Using the Foxwell scanner I read out the expected 61-10 code from the SRS system and a new 84-1 code from the ABS/VSA system. Permanent code 84-1 indicates “SENSOR LOGIC FAILURE” in the VSA system. What an ominous sounding error. What a coincidence that this new 84-1 code would appear just from scanning/clearing codes the day before so I wasn’t too concerned that something in the ABS/VSA system has suddenly failed.

I read further on the Internet that code 84-1 requires a “VSA Sensor Neutral Position Memorization” (AKA. VSA neutralization) procedure to be performed. There are great details on the Acura forums on how to perform this procedure. See Error Code 84 - VSA sensor neutral position memorization - Page 2 - Acura TSX Forum

I decided to try the VSA neutralization procedure myself. Note that the Acura procedure only outlines the neutralization procedure and not the ABS reset procedure. Doing just the neutralization procedure did not work for me so I gave up after several attempts and decided to ask the dealer to address the VSA issue when I went in the next day for the buckle switch repair.

The dealer confirmed the buckle switch problem, ordered parts and fixed the airbag warning light issue at no cost. Great. The VSA issue was a different case. The dealer wanted at least $150 to start diagnostics saying that they were able to pull out several other codes from the “body electrical” system. These error codes included the following:

B1150, B1156, B1157, B1158, B1159, B1160, B1177, B1800, B1831, B1830, B1833, B1832

Most of the codes seemed to be related to loss of communications between the various control units in the car (Combination Switch Control Unit, MICU, Relay Control Module, Door Multiplex Control Unit), as well as “Abnormal battery voltage”, right & left mirror vertical & horizontal sensor open. In my mind, this is the result of the battery slowly going flat. I declined the dealer’s estimate to start diagnosis as I was sure the bill would be several hundred dollars. I was confident that all that needed to be done was the VSA neutralization procedure.

I read up further on how to perform the VSA neutralization procedure and realized that I may have missed a critical step prior to performing the procedure. The ABS system needs to be cleared first. See the following YouTube video for details on how to perform both procedures which should be done just as shown. When I performed the ABS reset followed by the VSA neutralization procedure, the VSA lights turned off and have not come back on.

https://www.youtube.com/watch?v=3f11...ature=youtu.be

One step that is missing in the VSA neutralization procedure is to insure that your vehicle is on a flat and level surface with the steering wheel pointed straight ahead.

I found out later that I could have performed the ABS reset/VSA neutralization using the Foxwell scanner but the instructions that came with the scanner weren’t too clear and I was a little leery on using that device to control my car’s systems after the VSA problem appeared immediately after using it that last time. Don’t get me wrong, that scanner is a great tool but beware of unexpected issues.

I hope this posting helps someone. The dealer could have performed the ABS reset/VSA neutralization procedure and charged me $50 I would have been completely happy. I feel like the dealer knew exactly what my vehicle needed but wanted to try and soak me for whatever amount they could get… IMHO.