my bro has a 2004 Honda Odyssey and the D light started flashing while driving. on 2004 Honda Odyssey

theres no apparent shifting problems at this time. a mechanic told me that a scan for codes wont work at Auto Zone. anyone with the same issue and what the fix is? thanx

Asked by for the 2004 Honda Odyssey
If the D light is flashing, then the transmission computer is seeing a problem with the operation of the transmission. Need to have a skilled person deal with this.

here are some shops: