If you have a ford five hundred awd vehicle with a traction control system light illuminated on the dash and or a stored code p1889 you may also have a blow. The traction light came on in my ford 500 sel along with the abs light if this happened the problem was low battery power and a bad alternator a fully charged battery fixed it for me after driving a couple of miles. Problem solving the traction control system on your ford lincoln vehicle these are the most common mechanical problems that produce a traction stability con. Tech tip ford traction control light on no dtc or dtc p1889 some 2005 07 five hundred start the engine and allow the vehicle to idle for a minimum of 5 minutes with the transmission in park b perform five 0 25 mph 0 40 km h wide open throttle accelerations courtesy of ford motor co tsb 08 4 11 advertisement. I have a 2006 ford five hundred the wrench light came on and the transmission doesnt engage when put in gear this happened several times the issue went away when i turned the car off and back on the wrench light went out and the car operated normally now the light wont go out and the transmission wont work