Hello all,

ABS light randomly comes on and now the caution light stays on my s2k. Pull out the code and said Need help! 84-1 sensor logic failure. Did some search online and some TSX has the same error code referring VSA sensor neutral position memorization.

Can someone tells me what causes it and how to fix it? Someone posted a solution by jumping pins on their TSX and I don't want to take risk not knowing if the procedure works across all Hondas/ Acuras. Please help.

 

Have you found the solution to this sorry if it's too late I'm just having this issue with my s2000 and I'm not sure what to do

 

Yes, I took my car to rest the neutral position and the code is cleared. Hope this helps.

 

Ok thank you very much I will try to do so

 

Did you jump the pins like in the tsx forum? I have a vsa that seems dead and not sure if I need to do a NPM. No light, off switch doesn't work, and I can still peel off. But my vsa unit pulsate.

 

so how did you fix it?

 

Jumping the pins is just one step in the relearn procedure. Also need to turn and hold wheel this way then that, with just 4 sec each time to do next step. Kinda a pain to do. Might take more than one try to get it right.

But this may not even fix your issue. If its because steering wheel removed and sensor with two tabs moved out of place, only way to get it back is using Honda HDS tool to relearn zero position. There are aftermarket HDS tools that are pretty cheap to buy.