SecuriLock System My car has been setting for a month, during that time my positive cable on the battery lost connection, i fixed the connection and now it cranks but wont start. The theft indicator on the dash is blinking every 2 seconds indicating it is protecting my vehicle from starting. How do I reset this?

so the key is not consistant
and the car came with 2 good keys day1 new,lost 2nd?
the key is bad, is the IMMO lamp glowing wrong per users guide>?
but to me this evidence is a bad key.
the first thing to know and worrry is ,
never have just one good key on any modern IMMO car.
and never ignore the IMMO lamp

no start means what?

1. starter dead, and silent or only clicks or chatters
2. starter motor cranks the engine fast but engine does not start.
3. or IMMO lamp glows wrong

check all fuses
scan the pcm for key errors or related.


IMMO means page 91 in users guide free and i guess lost.
SECURILOCK™ PASSIVE ANTI-THEFT SYSTEM
SecuriLock™ passive anti-theft system is an engine immobilization
system. This system is designed to help prevent the engine from being
started unless a coded Integrated Keyhead Transmitter (IKT) is happy.
next page the good or not happy words

When the ignition is in the 1 (LOCK) position, the indicator
will flash once every 2 seconds to
indicate the SecuriLock™ system
is functioning as a theft deterrent.
• When the ignition is in the 3 (RUN) position, the indicator will glow
for 3 seconds to indicate normal system functionality.
If a problem occurs with the SecuriLock™ system, the indicator will flash
rapidly or glow steadily when the ignition is in the 3 (RUN) position.
If this occurs, the vehicle will not start and should be taken to an
authorized dealer for service
again never have just 1 good key.

my guess is the keyswitch also has problems.

this? SecuriLock(tm) <<<you have this.>?

Tell what it does wrong first. or the good bad, ford ranger 2000
engine cranks fast no start ( lost 2nd Securilock key?)
or will not crank at all (silent ) clicks or chatters
IMMO lamp acts wrong, per the lost users GUIDE.
doors fail,
fob buttons fail (battery coin inside dead)
what?

no start by SECURILOCK

quote your free uses guide at ford.com
Your vehicle's engine can only be started with
the two special SecuriLockyelectronically coded keys provided with
your vehicle.
and

Theft indicator
The theft indicator on the instrument cluster will operate as follows:
•When the ignition is OFF, the theft indicator will flash briefly every
two seconds to indicate the SecuriLockysystem is protecting your
vehicle.
•When the ignition is turned to RUN or START, the theft indicator will
light for three seconds and then go out. If the theft indicator stays on
for an extended period of time or flashes rapidly, have the system
serviced by your dealership or a qualified technician.
The Theft indicator is controlled by theSecuriLockysystem.During
the 30 second prearm state, it is normal to see the theft indicator pulse brighter behind the constant glow.
see the dash lamp do this ?



read it here

https://www.ford.com/support/vehicle/ranger/2000/owner-manuals/

no engine told and is an engine problem/ EFI
it starts and stalls
and is Misfiring badly.
the problem is here,
security light ! not happy' SecuriLock™ !!!!
for sure
Lost the 2nd key?the car came with new????????????
never have 2 secure keys inside car same time. fords or other
or the RF signals JAM and fail. (keys are passive type)
infact try the key all by itself , no other key , in the cab or in pockets or other places in car) the try key #2 the same way. all by itself.
still bad?

scan the PCM is next if fuses are good.

are you sure the main battery is good. ? not weak and cranks weak and starts and stalls.
the battery must not go below 10vdc,or computers can fail;(modules)
12.6vdc rested battery. key off, for hours.
running battery volts is 13 to 15vdc (alternator good )

page 166 in your glove box states, this.
QUOTED:
When the ignition is in the 1 (OFF/LOCK) position, the indicator will
flash once every 2 seconds to indicate the SecuriLock™ system is
functioning as a theft deterrent.
•When the ignition is in the 3 (ON) position, the indicator will glow for
3 seconds to indicate normal system functionality.
If a problem occurs with the SecuriLock™ system, the indicator will flash
rapidly or glow steadily when the ignition is in the 3 (ON) position. If
this occurs, the vehicle should be taken to an authorized dealer for
service.(or scanned your self DIY, <my comment here)

as you can SEE never have just one good key or repairs and tows
can hit $500 easy, and my car I can make a 2nd and 3key, DIY.
so do that. before fails next time.

flash rapidly or glow steadily = bad. see manual quote below.
car came with 2 keys, lost the 2nd one?
scan the PCM yet to see true cause of this error.
battery in car must be fully changed, 12.6vdc rested.
below 10v the onboard carcomputer brains go dead or random.

• main car huge battery not weak or discharged.
• 2nd key fails, never have just one.
• PCM scans show why it fails sure will.
• 2 key system options, 1 has battery in the key CR2032 easy to replace in manual, (missing)? sold at walmart even.
• page 136, Your vehicle comes with two coded Integrated Keyhead Transmitters; and DYI to make a 3rd. ket

page 136 words more

Anti-theft indicator
The anti-theft indicator is located in the instrument panel cluster.
•When the ignition is in the 1 (LOCK) position, the indicator
will flash once every 2 seconds to indicate the SecuriLock™ system
is functioning as a theft deterrent.

•When the ignition is in the 3 (RUN) position, the indicator will glow
for 3 seconds to indicate normal system functionality.
If a problem occurs with the SecuriLock™ system, the indicator will flash rapidly or glow steadily when the ignition is in the 3 (RUN) position. If
this occurs, the vehicle will not start and should be taken to an
authorized dealer for service.

get this and keep of for now and next time car fails.

https://www.fordservicecontent.com/Ford_Content/catalog/owner_guides/08tauog3e.pdf

there are 2 kinds of keys. Passive and Active transmitters.
the Active they uses a battery.
the glove box has key tag too that has key secrets there. ("codes:)

all codes are OBDll and are available on line free. personally I would replace battery. Batteries often fail during the summer, but appear during winter as it takes more power to start cat.

https://mechanicbase.com/trouble-code/p1684/
https://www.yourmechanic.com/article/p0340-obd-ii-trouble-code-camshaft-position-sensor-circuit-malfunction-by-jamahl-walker

The battery will eventually lose charge over a few months - depending on it's age and condition.

If you can get someone to turn it over once a week or so, that would be a better idea.

Even if the battery is removed, it is likely to have lost its charge by the time you come back to refit it. You will need either a jump start with cables, a booster pack or a battery charger.

Just be aware that an older battery may need replaced if left disconnected for a few months. If your battery is more than three years old, remove it but buy a new battery when you come to use the car again.

It's true that no battery might cause the alarm system to need resetting. Have a word with a local mechanic for advice. They are always knowledgeable and far less expensive than a dealer.

No, do not disconnect your car's cables. Connect positive cable to positive one on charger cables, & negative to negative. Attach to DEAD battery FIRST. Then attach to car that's giving you a charge. BOTH CARS MUST BE OFF DURING ATTACHING PHASE. Then the car giving you a charge must start theirs. Let both sit like this for a few minutes (usually 3-5 minutes is plenty). Then try starting your car. If not charged enough, turn yours all the way off & continue charging for longer period of time. YOU DO NOT REMOVE THE CAR's OWN CABLES AT ANY TIME DURING OR AFTER THIS PROCESS, BUT ONLY WHEN A NEW BATTERY IS BEING PLACED IN YOUR CAR.

sounds like a wire or ground wire is contacting at a pinch point, and grounding out the system. first have the battery voltage checked, it should be no less than 12v, and no more than 14.5v, during cranking it can drop to 8.5v but no less. any new parts installed, such as a ignition switch???/
may need to be reprogramed to match the computer, or just fix a bad connection.

Removal Procedure

Disconnect the negative battery cable

Remove the wheelhouse liner.

Open the positive battery cable connection cover.

Loosen the positive battery cable bolt.

Remove the positive battery cable

Remove the front fender rear bracket to side rail bolts.

Remove the front fender to front fender rear bracket upper (1) and lower (2) bolts.

Remove the front fender rear bracket.

Remove the battery hold down retainer bolt and retainer.

Important: Do not tip the battery more than 40 degrees during removal.

Remove the battery.



Installation Procedure

Important: Do not tip the battery more than 40 degrees during battery installation.

Install the battery.


Install the battery hold down retainer and bolt.

Install the front fender rear bracket.

Install the front fender rear bracket to side rail bolts.

Install the front fender to front fender rear bracket upper (1) and lower (2) bolts.

Install the positive battery cable (1).

Tighten the positive battery cable bolt.

Close the positive battery cable connection cover.

Install the wheelhouse liner.

Connect the negative battery cable