W124 ABS dash-light start-up sequence

[ke6dcj]

After starting our 1988 W124 300TE, the ABS dash-light came on.

After re-starting the car, all is well, and the ABS functions as well.

When starting the car, but before engaging the starter, I was under the impression that some dash-lights (e.g., ABS, SRS, etc.) would illuminate for about 1-second then go out.

The SRS light does this sequence, but the ABS light just blinks very quickly, then goes out, not waiting 1-second.

Is this normal?

I'm asking because I read that the ABS unit will "shut-down" if the voltage is less than 10.25 volts (my voltage is above 12.5).

BTW: I did check the Over-Voltage-Relay's fuse (it was OK), and I swapped out ABS control-units (I have a spare) but still get the quick "blink" sequence instead of the 1-second wait like SRS.

:-) neil