My 2000 Sable security system is going off at random times, on
the average about once every couple of days. It can occur
anywhere, anytime. It can occur whether the car is left locked
or not. The dealer has had it 3 times and has had no success
correcting the problem. (They replaced the hood switch,
although I told them I didn't understand how that would cause
the fault to occur even when the car was unlocked, and now
they've disabled the hood switch. They say that's the only
fault they're getting from the system diagnosis.) I would be
happy just to have the darned system disabled, although
repairing it would be even better. I've taken to pulling the
horn fuse when I really don't want it to go off, but that's a
pain to get to.
Another symptom is that a total of 4 or 5 times (i.e. rarely),
the keys do not work to start the car, i.e. the behavior is as
if you don't have the special key with the chip in it. After a
few minutes (the system apparently resets) the keys work.
If anyone can provide advice, please do!
[This followup was posted to alt.autos.ford and a copy was sent to the
The first thing that comes to mind is a possible wiring issue. Maybe a
loose connector, poor ground, a partially broken wire, or an
intermittent short. In addition to the hood switch, there are switches
inside all 4 door latches and the trunk latch. If one of them is
intermittent, it could be fooling the system into thinking something was
According to the service manual, you cannot fully disable the security
If there is a no_junk in my address, please REMOVE it before replying!
All junk mail senders will be prosecuted to the fullest extent of the
Thanks for the suggestion, but I don't see why failure of any of
the hood, door, or trunk switches would cause the alarm to go
off even when the car is unlocked, i.e. when the alarm is not
set. You may be right about a wiring problem elsewhere, though.
BTW, I got a new suggestion to not leave my spare remote in the
glove-box. A possibility is that it may be intermittently
"going off" (pushing the panic button) and causing the problem.
So, I'm going to try stashing it in a distant drawer in the
house instead and see if that may solve the problem.
Thanks again for the thoughts and suggestion.
Andrew Rossmann wrote:
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