[s-cars] fact or fiction - diff lock relay...

[QSHIPQ at aol.com]

I'd leave the relay alone myself, besides there isn't one.  The ECU (via
vehicle speed sensor input) sends a signal thru the blue white wire to the vacuum
controller box located under the rear seat (4x4 box with 3 vacuum hoses to
it). To disable the 40mph cutout, you need to interrupt the signal to the
blue/white wire.  A "better" mod IMO, is to put a switch there, so that when you want
to disable it, you turn off the switch (blue/white interruptus), when you
want it enabled, you leave the switch on.  Total cost = 1.50USD from Radio Shack.


HTH

Scott Justusson
QSHIPQ Performance Tuning
'83 Urq with dual electropnuematic switches from 92 S4

In a message dated 10/17/2003 4:06:15 PM Central Daylight Time,
ken_ng11 at yahoo.com writes:
I understand that the 92-95.5 UrS cars have a push
button lockable rear diff. and that the locking
feature is electronically 'unlocked' at ~40km/h - i
spoke to a fellow 95.5 UrS6 owner and he indicated
that there is a relay that can be removed to
deactivate the auto 'unlock' at ~40km/h... and that
somehow this permits full lock up to 100km/h...

query: 1. is this fact or fiction, 2. what happens at
100km/h that causes it to 'unlock' when the relay (if
such a thing exists) is removed and 3. what are the
adv. and disadv. of removing the relay ...

TIA,
Ken