[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
ABS problems revisited
I'm still trying to diagnose an ABS problem in my `91 V8 5-speed (without
the benefit of a Bosch ABS tester). As I mentioned before, a solenoid will
start operating at very low speeds as I'm approaching a stop. Lately, the
system will switch itself off when driving at highway speeds (no braking).
I'm reasonably sure it's a wheel sensor problem, but I Ohm'ed each one and
they all came up within reasonable values (1.26-1.28 kOhm). I'll next check
if one is shorted to ground. I have a couple of questions:
1. Is there any easy way I can figure out which wheel the system thinks is
2. What does the wheel sensor itself output (i.e., a voltage or a frequency)?
I plan to take home a portable battery oscilloscope this weekend, if I can
figure out what to try to measure with it. I'd appreciate any advice you
can give me.
Applied Research Laboratory
Penn State University
State College, PA 16804