I have a strange intermittent problem. When I touch the brakes the car "hiccups" just for a split second. I mean the whole car basically shuts off. It never actually dies and I have to pull off the side of the rode or anything like that. It always "comes right back on". Dash lights will does funky things, tach jumps around, just weird stuff. After this happened a couple of time my ABS light came on. Fortunatlely I have a mostly interstate trip home, so I only had to hit the brakes about 3 times to get home. Since the ABS light came on, I checked the ABS codes and have a code 21. I followed a link from a previous post to an ABS troubleshooting page to see what the code 21 is, Main Valve. I disconnect the 2 pin connector to the actuator and checked the ohms per the diagnostic chart on the page and it is in the 2 to 5.5 Ohm range for which it says to check the wiring harness if i am reading it right. I dont have any ABS wiring schematics to see where or if there are any splices to those 2 wires or where they lead to. I suppose the actuator itself could be having the intermittent problem and just because the ohms checked out that one time that doesnt mean it isn't bad. If the ABS assembly were bad, could it pull enough amps for just a split second that the whole electrical system hiccuped? Has anyone else had anything remotely similar happen? At first I thought I may have a bad battery or engine ground, but then realized it was only happening when I hit my brake pedal. I checked the battery and engine ground anyway and they are fine. For what its worth these are the elec parts that are basically new on my car recently (as you can see I am quite the roll with car problems); cam sensor, crank sensor, ignition switch and tumbler, and starter relay. If the brake pedal switch were bad I dont see it causing anything like this. Another weird thing is that my brakes themselves (as far as pedal feel and actually stopping the car go) seem to be working fine. Perhaps its not an ABS problem at all and the ABS light came on simply becuase the power came on and off so quick a couple of times. Who knows. My Firm Ride light started blinking after all of this too, but after is flipped the ride switch a couple of times, the light stopped blinking. Fortunately I have another car to drive to work, so I have some time to fix it. I welcome any ideas.