2002 Security issues wont read OBDII
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Fleet Mechanic
Joined: Jul 2018
Posts: 1,629
Likes: 103
From: Jacksonville Florida
2002 Security issues wont read OBDII
My stepson has a 2002 Ford F150 5.4. We replaced the intake manifold on truck. When we hook battery back up alarm light goes off. I plugged my OBD2 reader for forscan Windows version full version won't connect. I'll hook up my forscan lite with Bluetooth it doesn't hook up. Both of them work on my 250 6.0 diesel
Yes I'm a diesel guy so I'm asking for help on this one. What I can tell so far is it is security issues with the Ford anti theft system. I only have one key so am limited on what resets i can pull off.
The truck will crank but it just won't start, tries but nothing. Any ideas would be definitely helpful. Flying blind sucks.
Yes I'm a diesel guy so I'm asking for help on this one. What I can tell so far is it is security issues with the Ford anti theft system. I only have one key so am limited on what resets i can pull off.
The truck will crank but it just won't start, tries but nothing. Any ideas would be definitely helpful. Flying blind sucks.
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
Why do you think it's due to "the Ford anti theft system"? That system has nothing to do with diagnostic tool connectivity.
What is the THEFT light doing when the key is turned from OFF to RUN?
What does the odometer display when the key is in RUN?
What is the THEFT light doing when the key is turned from OFF to RUN?
What does the odometer display when the key is in RUN?
Hotshot
Joined: Jul 2005
Posts: 11,931
Likes: 180
do what Project said...
Put the key in and turn to ON.. not start.... You should hear the fuel pump run for 3 seconds to prime the fuel rail.
At the same time you will see the THEFT light come on for 3 seconds... Computer recognizes your key, then the light goes OFF.
Both tests with key ON...no cranking.
Put the key in and turn to ON.. not start.... You should hear the fuel pump run for 3 seconds to prime the fuel rail.
At the same time you will see the THEFT light come on for 3 seconds... Computer recognizes your key, then the light goes OFF.
Both tests with key ON...no cranking.
Thread Starter
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Fleet Mechanic
Joined: Jul 2018
Posts: 1,629
Likes: 103
From: Jacksonville Florida
Thanks for the responds. I have been working on truck today after work.
I got the diagnostic Hub to Work. Fuse blown. Got a s___ load of codes off forscan. Only two stuck out. P100, b1202. Looking at those issues. The alarm thing worked out with the disarm sequence. Key on Lock 3 times key off Lock 3 times turn key on . shut system down unlock doors got in turn over but I have no start.
Tomorrow I'll hook fuel pressure gauge up to it see if I got fuel pressure, reset PCM is my guess going to start there. The b1202 makes sense to becouse the boy run truck down on empty all the time.
Again Thanks guys, any other suggestions will be much apreciated.
I got the diagnostic Hub to Work. Fuse blown. Got a s___ load of codes off forscan. Only two stuck out. P100, b1202. Looking at those issues. The alarm thing worked out with the disarm sequence. Key on Lock 3 times key off Lock 3 times turn key on . shut system down unlock doors got in turn over but I have no start.
Tomorrow I'll hook fuel pressure gauge up to it see if I got fuel pressure, reset PCM is my guess going to start there. The b1202 makes sense to becouse the boy run truck down on empty all the time.
Again Thanks guys, any other suggestions will be much apreciated.
New User
Joined: Jul 2019
Posts: 3
Likes: 0
From: nevada,fla,ga
Those year model trucks are bad about crank sensor s going out. when you crank engine the check engine light should go off as you are cranking. If not then you may have a loose connection to sensor,or bad sensor.also makes sure the fuel pump inertia switch has not been tripped.
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Thread Starter
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Fleet Mechanic
Joined: Jul 2018
Posts: 1,629
Likes: 103
From: Jacksonville Florida
Update on boys truck. We reset PCM. Did another security clear with key fob. Truck fired right up.
Not sure what to think about that alarm system on that year modal. If the boy didnt find the Old key fob I'm not sure how long it would have taken to figure it out.
Now i could have bought a new pcm with keys(another option we looked at) or brought an 17 year old truck to the dealership. Hah!!!. Made my self laugh on that one.
But i wanted to say thanks to all the people who helped out.
Thanks!
Not sure what to think about that alarm system on that year modal. If the boy didnt find the Old key fob I'm not sure how long it would have taken to figure it out.
Now i could have bought a new pcm with keys(another option we looked at) or brought an 17 year old truck to the dealership. Hah!!!. Made my self laugh on that one.
But i wanted to say thanks to all the people who helped out.
Thanks!
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