What does the diagnostic error code PO715 mean on a 1998 Ford Explorer?
bad vehicle speed sensor
Your ford explorer 1998 has a switch on the drivers side door that controls both the lock and unlock buttons The switch works for the unlock but not the lock How do you fix it?
99%, the problem is with the blend door in the Plenum box. This is a common fail on the Explorer and is the first suspect when you see control problems. Follow my user name to my Bio Page for pointers to the HeaterTreater web site. There is a lot of diagnostic information and a bullet proof fix for the problem on the site. ford4me