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My "TCS" occassionally is staying on after startup.  It stays on even at highway speeds.  It might stay that way all day and then all of a sudden I start the van and the light shuts off like it normally should.  This has happened to me about three or four times in the past two months.  Pavement is dry??  

get codes from the traction control system...   use an OBD2 scan tool....  with CAN ...

that is the only way to start the diagnosis...

how is the brake fluid level.????//

if it is low in the master.. it will turn on the tcs light also..


different sized tires can also turn it on..

rust covered ABS speed sensors tips..

worn through abs speed sensor wiring...


it could also be steering input sensor..
when i say worn tires... some cars are critical on tire wear..   most TCS techs have a tape measure to see how close the tires are in diameter..

i am not familiar with how honda works their system...  

scan it for codes... post them...  that is the only way to start this repair..  

Thanks for the suggestions.  I'll get started.

Odygreen