1999 Ford F150 Regular Cab Logo

Related Topics:

Question about 1999 Ford F150 Regular Cab

2 Answers

1999 Ford F150 cranks & no start, theft code 16.

Checked fuses and relays. No spark & fuel pump not running.

Posted by Bruce Smith on

  • Jeff Armer
    Jeff Armer Nov 17, 2022

    Does the theft light flash or come on steady when trying to start the vehicle?

    The control functions are contained in the instrument cluster. This module carries out all of the PATS functions such as receiving the identification code from the encoded ignition key and controlling engine enable. The instrument cluster initiates the key interrogation sequence when the vehicle ignition switch is turned to RUN or START.

    The PATS uses the PCM to enable or disable the engine. The instrument cluster communicates with the PCM over the SCP network in order to enable engine operation. The instrument cluster and the PCM use sophisticated messages in order to prevent a theft. The instrument cluster and the PCM share security data (when first installed together) that makes them a matched pair. After this security data sharing, these modules will not function in other vehicles. The shared PCM ID is remembered even if the battery is disconnected. The instrument cluster also stores the vehicle's key identification code even if the battery is disconnected. There are special diagnostic procedures outlined in this workshop manual that may be carried out if either a new instrument cluster or PCM needs to be installed.

    All elements of PATS must be functional before the engine is allowed to start. If any of the components are not working correctly, the vehicle will not start.

    PATS uses a visual theft indicator. This indicator will prove out for three seconds when the ignition switch is turned to RUN or START under normal operation. If there is a PATS problem, this indicator will either flash rapidly or glow steadily (for more than three seconds) when the ignition switch is turned to RUN or START. PATS also "blips" the theft indicator every two seconds at ignition OFF to act as a visual theft deterrent.

    Sounds to me like you have some other type of problem , never seen a PATS system disable ignition spark ,fuel yes ,spark no. Also disable starter ,but not on that year .


Check Price eBay

2 Answers

David John

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    Visited the website for 3 consecutive days.


    An expert who has answered 20 questions.

  • Expert
  • 39 Answers

When an anti-theft module 16 is tripped and the vehicle won't start, the only way to fix it is to reset the system using factory software or a high-end scan tool. You may be able to find a mobile mechanic/locksmith with the software who can come to you, but most likely you will have to get the vehicle to your local dealer.

Posted on Nov 17, 2022


ADMIN Andrew

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Ford Master
  • 53,098 Answers

Anti-theft system has been triggered. It says Ford PATS System is finicky!



Posted on Nov 17, 2022


Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:


1999 Crown Victoria anit theft light blinking and cannot get it to start.

It will never start until the codes are canceled in its computer brain. Takes expensive specialty tools. A dealer can do it but you have to get it to them. A less expensive way is to call and ask a mobile mechanic if can do it. Not all of them can. Replacement keys fob are not expensive online but they also need reprogramming also.

95 F150 will crank & start sometimes

Have you anti theft system checked, that is where your problem will be.

If you need further help, reach me via phone at https://www.6ya.com/expert/steven_a67ead41eb5fc62a


1999 Gmc Sierra 4.8L cranks/No Start Using snap-on Solus Scanner. I followed basic diagnostics: Checked fuses- good Pulled PCM and BCM codes- none No spark and no fuel. No ignition power to fuel...

Did you check your CKP and CMP power wires for a short to ground? Short to ground up stream might be pulling the voltage low from the PCM. Also.. have you pulled up the underhood fuse block just to see if there's any rodent damage to the wiring under there? That's a pretty common spot for rodents to cause problems.

Truck will not start... checked the wires... replaced battery... am getting fuel... all fuses are good...checked the wiring harness going to coil packs-have juice...checked the coil packs... took them

Normally we start with the basics, are the spark plugs firing and are the fuel injectors opening and providing fuel, and does the engine have compression.
Also, are there any stored trouble codes in the computer?
There is a relay that powers the injectors and fuel pump. You say you are getting fuel so we will assume that relay is ok.
The crank or cam sensor could have failed, or a list of other things.
You will need to figure out if you are lacking fuel or spark to the plugs to proceed.

Drove to the store last night had no indications of any problems. Got in it this morning and it cranks over good but will not start? Here's things I have already checked/tested - fuses( coil,ignition, fuel...

If you turn the key from off to run ( do not start ) does the theft light go out ?
How did you check the fuel pump relay ? My 2001 at ~ 35K miles the fuel pump relay went out, I checked it by swapping the trailer tow adapter reverse lamp relay into the place of the fuel pump relay.
The thing I am drawing a blank on, and you seem to confirm what I think, is the fuel pump relay is removable in the '02. Must be the '03 when the fuel pump relay became integrated into the fuel panel ( non serviceable ).

If you jumper the fuel pump relay, does it turn on ( red line in picture below )

Sometimes it will start up fine and other times it loses spark completely and wont start. We had to have it towed home once because it wouldn't start then about 6 hours later it started up fine. Our...

How are you diagnosing it looses spark ?
Could be an issue with the Fuel Pump relay or the PATS system

If you get a crank no start, turn the key to the off position. Make sure you can hear the fuel pump run ( in the fuel tank, by the fuel door on the box ) by rolling down the window. Turn the key from off to run and wait to hear the fuel pump cycle. At the same time the theft light in the cluster should go out. Do both of those happen correctly ?

Try swapping the Trailer Tow adapter Reverse relay with the fuel pump relay.
My '01 had cases of crank no start, which I attributed to not holding the speed pass away from the key correctly ( causing PATS to not be completed ) , and at ~ 34K miles the fuel pump relay went out.

Engine cranks but wont start

Usually if no rpm signal, the vehicle won't start. Engine cranking, did you check for spark at the spark plugs? The fuel pressure you listed may have been the initial prime. It sounds like no injector pulse. The rpm signal comes from crank sensor. If your missing rpm signal, may thought is the crank sensor.
Were there any applicable trouble codes?

My car wont start its a oldsmobile alero 1999

if car wont start.make sure your battery volts are 12.5.if not charge battery.or replace it if dont hold a charge.if battery is good engine wont turn over.make sure battery cables is clean and tight if all good no start .have starter and starter solenoid check.if battery and starter is good.check for fuel .has some one turn ignition to the on position.go to rear of car listen for fuel pump noise.if your hear fuel pump check ignition system for spark.go to auto parts place buy a spark tester.if you get no spark .check .ignition fuses and ignition module.if you hear no fuel pump.replace relay or fuse.if if fuse and relay good replace fuel pump.if every thing good .your car could have crank sensor problem. or your car is in theft deterrant mode.if so have your car towed in and scanned.

I cant get my truck to start because of the anti-theft lock.

Do you have any engine codes?
Does your fuel pump turn on and do you get sufficient fuel pressure?
Do you get spark? Power to plugs, ignition module, coil packs?

Check all fuses and relays?

Not finding what you are looking for?


Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

85241 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22509 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8991 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides