1998 Mercury Sable securilock anti theft system

GIRLMECHANIC1

MEMBER
1998 MERCURY SABLE

Electrical problem
1998 Mercury Sable

i was trying to fix my mom's air cond and unplugged some fuses and relays to check them and now the car wont recognize the key. The theft light flashes fast. Cranks but no start. Cant hear fuel pump engage.
it will flash code 16.
she also only has 1 key.

is there a relearn proceedure that doesnt require a scanner?

thanks

2 Replies

MERLIN2021

MECHANIC
17,250 POSTS

No to reprogram, first the system must be working and you need two good keys to program more keys, up to 8.
Try removing the negative battery cable for 5 minutes, this will clear the keep alive memory. May work, may not.

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Saturday, July 24th, 2010 AT 6:38 AM

KATEEDSON

MEMBER
2 POSTS

I have kind of same thing happening. Any results? My theft light is flashing rapidly, somehow it is in "anti theft mode"
I have tried everything from unlocking with keyless entry, unlocking with key, turning the key forward once until theft light stops more than 3 times before trying again. I have noticed while doing this it blinks rapidly for about a minute then stops for a few seconds blinks once stops again then blinks 6 times a bit faster. Repeats this 10 times. Then shuts off but car will still not start. :( Help! I didn't do anything to make this do this. The car was not broken into. Nor was anything touched. We filled gas to full. Then the next time trying to start it did this but start after a few times trying. Now it won't start at all

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Monday, December 10th, 2012 AT 4:05 AM