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Anti-theft

Tiny
JIMEL48
  • MEMBER
  • 2001 FORD RANGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
I was recording data with a Actron code reader and while it was recording I replaced a coil wire. When I tried to erase a 305 code the code reader quit picking up a signal. When I tried to start the truck I did not have any power to the truck except for the theft light on the dash flashing. I do get a clicking around the middle of the dash when the key is in the cylinder and open the door. Clicking goes off when I tun the Key. Any ideas?
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Sunday, August 14th, 2016 AT 2:35 PM

12 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Try locking and unlocking the truck from outside and check all your fuses with a test light. It sounds like you tripped a theft deterrent.
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Sunday, August 14th, 2016 AT 3:23 PM
Tiny
JIMEL48
  • MEMBER
  • 32 POSTS
Thanks, I am going to try a different pcm relay.
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Sunday, August 14th, 2016 AT 7:35 PM
Tiny
QUICKERR
  • MEMBER
  • 2 POSTS
  • 2000 FORD RANGER
  • 3.0L
  • V6
  • RWD
  • AUTOMATIC
  • 155,000 MILES
Truck was turning over but not firing or getting fuel. Assumed it was anti theft. Tried a reset trick, now it will not crank. Also, anti theft light is blinking fast. Let me add. The anti theft light was flashing fast before trying anything. I do not have a second key. The "trick" was door open, ignition on, disconnect and reconnect the battery. Something I saw online. So, that is the only option? Is it possible that certain shops may have the scan tool? Or dealer only?
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Monday, June 1st, 2020 AT 1:21 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
I would try a hard system reboot this is done by removing the negative battery cable from the battery and holding it to the positive battery terminal for 1 minute this will discharge the system capacitors.

https://www.2carpros.com/articles/how-to-reset-a-security-system

Let me know how it goes.
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Monday, June 1st, 2020 AT 1:21 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,396 POSTS
Hey QUICKERR,

I would look at all if the fuses and test the starter relay, here are a couple guides and a diagram to hep you do some testing and get the problem fixed.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please run some tests and get back to us so we can continue helping you.
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Monday, June 1st, 2020 AT 1:22 PM (Merged)
Tiny
CSMOHT
  • MEMBER
  • 1 POST
The system hard reboot worked for me btw.
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Monday, June 1st, 2020 AT 1:22 PM (Merged)
Tiny
DALTON VARNES
  • MEMBER
  • 1 POST
Hi I have a 99 ranger and I lost the key and my dad tried to make my none chipped key work and he set the anti theft on so I don't get fuel or spark and I have tried rebooting by undoing the negative and touching the positive multiple times and all my fuses are good so what can I do? I bought this truck before my birthday last year put a motor in it and only got to drive it like 10 times and no one said they can help me
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Monday, June 1st, 2020 AT 1:22 PM (Merged)
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

If you have a (vpats) chipped key you will have to replace with another chipped key.Non chipped keys will not work.Here is a tutorial showing how to reset the anti-theft/security system but it's probably going to be a long shot by having your non chipped key:

https://www.2carpros.com/articles/how-to-reset-a-security-system

After reading scroll down the page to find Ford. Hope this helps and thanks for using 2CarPros.

Danny-
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Monday, June 1st, 2020 AT 1:22 PM (Merged)
Tiny
DEC17JJ
  • MEMBER
  • 1 POST
  • 1998 FORD RANGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 51,000 MILES
I have had this truck for 4 yrs and didn't even know it had an anti theft system. I changed the battery and now the alarm goes off and it won't start. I disabled the horn I have power but no start
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Monday, June 1st, 2020 AT 1:22 PM (Merged)
Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
Try resetting it here is a guide

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.
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Monday, June 1st, 2020 AT 1:22 PM (Merged)
Tiny
STALLIONPLAYBOY
  • MEMBER
  • 2 POSTS
  • 1998 FORD RANGER
Computer problem
1998 Ford Ranger 6 cyl Two Wheel Drive Automatic

I'm wanting to know if it is possible to add a car alarming system with remote start and auto door locks if my 98 ranger has neither a previous alarm nor auto doorlocks?
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Monday, June 1st, 2020 AT 1:22 PM (Merged)
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
There are aftermarket accessories available that can be added for this. It is somewhat of a specialty service that not all shops get involved with. But a few phone calls should be able to narrow it down
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Monday, June 1st, 2020 AT 1:22 PM (Merged)

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