2002 Acura TLS Code 84-1 sensor logic failure - AcuraZine Community

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Old 01-25-2010, 11:24 AM   #1
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2002 Acura TLS Code 84-1 sensor logic failure

Hello all,

Originally my problem started with random misfire problem which got fixed thanks to this site. Now I am getting the yellow triangle light with exclamation point and VSA light. The triangle light is on the second I start the car. The VSA comes on couple of minutes later after i hit the breaks. My friend work at a shop and has an OBDII computer. The only code that comes up is on the ABS section 84-1 sensor logic failure. I have looked everywhere to see what that code means and cant find any information. I called the dealer to see if they might be of any help, which they offered for $125 to diagnose the problem. I am hoping there might be someone here who has seen this or dealt with this and might offer some advice.

Thanks,
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Old 01-27-2010, 2:05 PM   #2
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Anyone?
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Old 01-27-2010, 2:10 PM   #3
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what is your car doing? like what are the symptoms and maybe we can do a diagnostic based on your observations.
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Old 01-27-2010, 3:29 PM   #4
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Thats the thing, it seems to be running just fine. The only things is the lights are on and the VSA is not working.
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Old 01-27-2010, 4:27 PM   #5
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It may need to have the steering angle sensor reset. The vsa modulator is another possibility.
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Old 01-27-2010, 5:19 PM   #6
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start with the obvious- the wheel speed sensors!, easily damaged during brake job if not careful, or damaged by road debris, or corrossion and wire damage
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Old 05-04-2011, 9:49 AM   #7
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Hello People I am Having the same problem with my 2003 mdx can anybody help thank very much
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Old 05-04-2011, 1:11 PM   #8
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in the service manual the only code that resembles 84-1 is 84 - neutral position, under the VSA section, it says the ABS light will blink if you are getting this code. It doesnt sound like this is what you are getting.

Regardless, the first step in the procedure is attached
http://img708.imageshack.us/i/unledngm.jpg

also, there is no description 'sensor logic failure' in the entire ABS/VSC troubleshooting sections

Last edited by mr tl; 05-04-2011 at 1:13 PM.
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Old 05-04-2011, 5:26 PM   #9
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lav== post in the mdx section for better help,,this is gen2 TL

stop by parts store and ask for a free code reading
report any found back to the mdx gurus
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Old 05-04-2011, 5:26 PM
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06, 2004, 84, 841, abs, acura, code, failure, honda, logic, mdx, sensor, tl, tsx, vsa

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