Had this annoying little locker failure on weekend.
Drove up this slippery steep track (with road tyres on) not
really expecting to get up, as heading up switch locker
compressor on and nothing was heard. It's not a
hill to stop on
and while I was thinking it was probably an electrical fault
the back
wheels then front lost traction completely
and back slipped out on the off camber track.
I wasn't very happy.
Car just held on the slope but what a pain it was moving round
and trying to sort out problem while having trouble just standing up.
I pulled wires off the air pressure switch and touched them together
as a test and sure enough the comnpressor fired up.
Counted to ten with wires shorted which is about how long compressor
usually runs and this put air into
tank.
Fortunately this was enough to engage both lockers and we moved
off abeit a little sideways with some significant wheelspin.
Later check showed that the air pressure switch had failed.
Never had this before - fortunately a year or so ago there was
a significant price drop and this $35 device only cost $12 in money
to replace - never had this sort of price drop before either.
Can't complain to much I suppose as wasn't even raining , just
wish I had engaged switch 100 meters earlier.
Robin Miller