2002 dodge grand caravan. Put key in, all lights

check for loose dirty battery terminals /dirty loose earth points. This is an indication of incomplete electrical circuit

the info bus is down try unpluggin the crank sensor on the right side of the transmission see if no bus goes away al see computer cause this issue

first check for recall.

The ABS works according to what the speed sensor tells it. The sensor may be bad or it senses a broken tooth on the tone wheel (the sensor reads these teeth on the tone wheel, found in the hub).
You will still have Brakes, but not the ABS. You can switch the sensors from the good side to the bad to see if it is in fact the sensor itself. Good luck!

The ABS light only comes on and stays on when a problem like a failed part exists in the ABS system, the ABS control module senses this problem and it disables the ABS brakes and turns on the dash warning light, so right now you have regular brakes, no ABS. So what needs to be done? You must have the ABS control module scanned by the dealer to see what ABS fault codes are in its memory, then a trained technician will perform the necessary diagnostics and repair the system.

if its an orange-yellow light ,you wont have abs operation,but will still have traditional brakes,but if its a red light ,you might want to take it in,

check your brakes that could make your light com on

First check brake fluid. If this is ok, one of the ABS sensors are giving a bad reading to the brake force distribution.

i have the same problem you have to put a bit of solder on all the tips of the connectors were the bulb goes in and it will be fixed

ABS diagnostics requires a scan tool (Chrysler DRB II, DRB III or aftermarket equivalent). the plug is located near the brake pedal. this is the only alternative to get the ABS light off.