2002 Dodge Ram Brake LIte,ABS+Speedometer

From : Annonymous

Q: i have a 2002 ram 1500 quad cab 4wd. brake lite and abs are lit also the speedometer jumps around untill the veichle moves. when truck is moving speedometer works fine.with engine not started or with engine running speedometer jumps all over the place. brakes are working fine.inspected rotors and pads all o.k. no leaks and fluid levels good. .

Replies:

From : tbone

you appear to be one of the ones with either a defective rear wheel speed sensor or bad wiring going to it. the sensor is located on top of the rear axle on top of the pumpkin. -- if at first you dont succeed youre not cut out for skydiving i have a 2002 ram 1500 quad cab 4wd. brake lite and abs are lit also the speedometer jumps around untill the veichle moves. when truck is moving speedometer works fine.with engine not started or with engine running speedometer jumps all over the place. brakes are working fine.inspected rotors and pads all o.k. no leaks and fluid levels good. .

From : dogginallday

i am now having this same problem with a 2004 dodge ram 1500...the abs light and brake light stay on constantly the speedometer jumps erratically until the speed gets above 30 mph...and the cruise control turns itself off immediately after turning it on. i was told about the speed sensor on the rear differential and changed it....with no results. someone please please help me....my warranty ran out about 1000 miles ago and cant afford to take it to the dealership... .