20002 ford taurus intermittent loss of power anri theft light on for a few seconds

Question edited for clarity.
Question moved to model category.

Your anti-theft system and immobilizer is now active.

https://www.google.com/search?q=2003+Ford+Taurus.+theft+light+blinks+once+and+then+twice

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https://www.youtube.com/watch?v=hLX1RR5w5F0

How to Disable a Taurus Factory Anti-Theft System

1. Press the "unlock" button on the remote entry transmitter.
2. Insert the coded key into the ignition. Turn the ignition on. The anti-theft light will turn off after approximately three seconds, indicating the system is disabled. Repeat the steps if the light flashes rapidly or stays on for more than a few seconds.

https://itstillruns.com/disable-taurus-factory-antitheft-system-8452652.html

You will need the system scanned to see what fault is present, left unrepaired the problem will in the end cause a lock out.

If the CEL is blinking this should mean codes are set. Light may go out when intermittent problem cures itself, but code should still be stored. If not, I'm stumped.

What is now,any lights,any codes,sound car quit and came back.could be crankshaft sensor.

In the diagram, the top wires are voltage to ignition switch, hot all the time, use a test lite to check for voltage, you can see the wire colors. The bottom wires go hot with key in the proper position, check them for voltage, also. I started to trouble shoot your power windows, figuring if you fix one component, it may fix the others. I guess it's 6 of one or 1/2 dozen of another. Several ways to troubleshoot.
Any applicable trouble codes?

I have a similar problem, intermitently the car will not crank. The dome light stays on which eliminates the battery. The clock on the radio turns off when I try to start it. Th Theft light is solid red the first time I try to start it, then latter after a few tries the red light is off, but it still wont start. I tried moving the shifter when in park, I even tried starting it in neutral. After a while it starts and once started it runs fine. I will have to take it to Ford next week. We just do not want to drive it, it is too unreliable. It is a 2000 Ford Taurus.

IT WILL HAVE EITHER PASSIVE ANTI-THEFT SYSTEM (PATS) MODULE OR REMOTE ANTI-THEFT PERSONALITY (RAP) MODULE . REPLACE THE MODULE.

P1260 - This, basically is indicating that a theft has occurred, and the engine has been disabled.If the engine stalled, during travel, and the code was pulled after the stall, this will indicate the following:

1.A loss of power, or ground wire to the PCM
2.A Faulty PCM power relay
3.A Faulty EEC power diode
4.A Faulty VERF signal.

Passive Anti-Theft System (PATS) communicates PCM through instrument cluster to enable or disable vehicle's engine. Within one second after engine start, PCM must receive an enable signal from instrument cluster or engine will be disabled. Along with enable signals, instrument cluster and PCM share messages that confirm security codes shared during initial installation. This shared security data makes instrument cluster and PCM a matched pair, so neither will operate in another vehicle. When system is functioning properly and ignition switch is turned to RUN or START position, THEFT indicator light will turn on for 3 seconds, then turn off. Vehicle will be enabled to start and run. If a problem exists in PATS, THEFT indicator light will stay on or flash continuously.


NOTE_ The best action is to clear the code, by using a diagnostic CPU. Plug the CPU into your in car port, under the dash. Follow the instruction on the CPU display to clear the code. if the engine dose not start after the code is cleared, this will indicate that there are some issues with the PCM, or PATS

Sell It