On Dec 7, 2011, at 1:12 PM, David M wrote:

> My brake warning light has started flickering when I'm in motion. I did leave the handbrake on once or twice, could that have messed something up. How do I troubleshoot this?
>  
> -David (1987 Wolfsburg 2.1L gasoline, auto)

Other people have reported that same symptom, and very poor brake performance, after doing the same thing (leaving pkng brake on).
I'd suggest 2 things: 1/pull the instrument cluster hood off and check the brake fluid/clutch fluid level ... add if needed; 2/adjust the rear
brakes by backing up to a fairly good pace (15 mph) and braking hard. Do that a few times.
bob