The "Related Questions" below cover the Check Engine Light and retrieving the diagnostic trouble codes (DTC).
Lots of detailed information and guidance...
P.o.s.
The 1995 Windstar uses the current ODB-II diagnostics scanner and codes.See "Related Questions" below for more about reading and responding to trouble codes.
OBD Data port / data link??
You can switch the traction control system off using the switch to the left of the radio on a 2000 Ford Windstar
I'm not exactly sure about the 136 and 141 codes, but the 171 and 174 are symptomatic of a known problem with Windstar 3.8 litre engines. Those codes combined with rough idle are prime indicators of a leaking upper intake manifold involving worn out "isolator bolts". See "Related Questions" below for more
my 2000 windstar sel you can not turn of the air bags.
See "Related Questions" below for much more about this very serious. but somewhat easily fixed, problem with 1999-2003 Windstar 3.8l engines.Includes links to very detailed instructions on what the fix(es) are.
The overdrive in the Windstar could have an internal problem, or the control from the overdrive button may not work. Run a check of computer codes to see if a problem shows up.
( No )
I have never seen a vehicle that has an on/off switch for the speakers, including the Windstar.See "Related Questions" below for more about Windstar radio wiring
The Ford Ranger and Ford Windstar were produced on two totally different chassis. This makes putting a hitch from a Ranger onto a Windstar a structuraly problem. If you know how to weld pieces onto or cut pieces off of the hitch, there is always a way to make the hitch work. If, however, you want to just take the hitch off of the Ranger and bolt it up the Windstar, that would never work.
The overdrive is "ON" when the light is "OFF". Notice the light for the overdrive has a slash through it.