sprinter problem on 2005 Dodge Sprinter 2500

veh has abs light esp light and check engine light on. wont shift from park. no speedo. codes p0500, p0720, u0122. sometimes no lights are on and everthing is ok.

Asked by for the 2005 Dodge Sprinter 2500
2 answers
brake light switch. $20-25 at glendale auto supply .its behind the brake pedal armature near the top. tight squeeze but doable.
Electrical problems are best left to the trained technicians at your local dealership. Gone are the days of simple hard wiring to components. Headlamps as well as almost all accessories in your vehicle are controlled by various computer modules all inter connected by a "Can Bus" Circuit. Any damage to this circuit can cause the entire vehicle to shut down.