Bye bye Honda...
Car: Volvo V60 VEA D4 (181)
Join Date: 11th May 2012
Location: Ludlow, UK
Thanked 1,266 Times in 1,043 Posts
The scary ABS/VSA error code (especially on Accord diesel models) is 66-1. This indicates that the controller has an internal fault and requires reconditioning... will cost around £200 to have this done, plus fitting (fitting is a DIY job, but lengthy). You might want to assume this could be the reason someone wants to sell a diesel Accord with that warning light showing?
Be aware that hardly anyone ever manages to remove a faulty wheel sensor without snapping off the old one, because they corrode into the hub. I've had to drill out two of mine... time-consuming and, if on the front, there is a risk of damaging the inner ring of the wheel bearing where the magnets are located (best to remove the hub really).
Aftermarket sensors are available at a reasonable cost (unlike the Honda ones!)
Good luck. Please let us know how you get on.