Check the pads for wear, and check the wires to make sure the casing has not been eroded away. The brake rotor completes the circuit in normal cases or front pad wear.

__________________
RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Gone and still missed...1982 w123 300D, 1991 w124 300D

Agreed, also check fluid level.

__________________
83 SD

84 CD

second on the fluid level

The resevoir is a dual chamber (front / rear) - nice safety design.

I had a real slow leak in my rear caliper and it drained the back chamber and made the light flash under brake and acceleration (as the fluid sloshed).

__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net