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Old January 22nd, 2013, 04:28 PM   #1
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Default 2005 Taurus Airbag codes

I am getting an airbag code 51 after replacing the drivers wheel airbag, seatbelt tensioner and used module.

At first I got a code 42 but swapped in the original front crash sensor and now I have the code 51.

I have a good module in 2002 taurus out back I could use but dont want any thing bad to happen.

I got the used airbags parts from a salvage yard.

I tried the original module and it gave me a code 13, bad fuse in the module.

Any help will be greatlt appreciated as I have an appt to have this car inspected tomorrow.

-Jay
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Old January 22nd, 2013, 04:30 PM   #2
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I found this, does it mean the module is no good?

Diagnostic Trouble Code 51—Air Bag Diagnostic Monitor Internal Thermal Fuse—Fuse Blown Due to Intermittent Short to Ground Normal Operation
NOTE: The air bag diagnostic monitor contains an internal thermal fuse that is not serviceable. The thermal fuse is controlled by the microprocessor inside the air bag diagnostic monitor . The microprocessor inside the air bag diagnostic monitor will blow the thermal fuse whenever a short on the deployment circuits occurs. The thermal fuse does not blow because of excessive current flowing through it. DO NOT attempt to short circuit the thermal fuse with a circuit breaker or any other type of fuse.
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Old January 22nd, 2013, 06:42 PM   #3
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The lamp fault codes are kind of generic and if you want more specific info you will need to pull codes with a scanner.

a code 51 has to do with the driver saftey belt buckle switch, make sure it is plugged in and the connector is in good condition.
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Old January 22nd, 2013, 06:49 PM   #4
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Looks like a 51 code is for a drivers seatbelt buckle switch.
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Old January 22nd, 2013, 06:51 PM   #5
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Beat me to it
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Old January 22nd, 2013, 07:23 PM   #6
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Quote:
Originally Posted by frdboy View Post
The lamp fault codes are kind of generic and if you want more specific info you will need to pull codes with a scanner.

a code 51 has to do with the driver saftey belt buckle switch, make sure it is plugged in and the connector is in good condition.
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Looks like a 51 code is for a drivers seatbelt buckle switch.
I replaced that little guy, will look into it.

Thanks.
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Old January 24th, 2013, 11:41 AM   #7
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I swapped the one from a 2002 into the 2005 and no difference.

Anyone local that can take a look or a dealer that you work at?

Code 51

Replaced the drivers airbag and seatbelt buckle/pretensioner and module with used parts.
I got a code 42 at first and put the original front crash sensor in place of the one from the 2002, as I was trying to unplug it it came apart. Is it possible the clock spring or module have an issue?

I am not really a ford guy when it comes to airbag systems.
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Old January 25th, 2013, 05:53 AM   #8
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Quote:
Originally Posted by firehawk View Post
I swapped the one from a 2002 into the 2005 and no difference.

Anyone local that can take a look or a dealer that you work at?

Code 51

Replaced the drivers airbag and seatbelt buckle/pretensioner and module with used parts.
I got a code 42 at first and put the original front crash sensor in place of the one from the 2002, as I was trying to unplug it it came apart. Is it possible the clock spring or module have an issue?

I am not really a ford guy when it comes to airbag systems.
Without pulling a real code it is impossible to say but it could be the used buckle is bad or has a connection issue. To bad you are on the wrong side of the state. Really need to find someone with an IDS to see whats going on.
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Old January 25th, 2013, 06:15 AM   #9
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On my 02 explorer, dunno how similar it is, i had the same code, there was a wire underneath the seat that had just gotten kicked too many times and needed to be replaced / soldered. It was apparently in an extremely common problem.
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Old January 25th, 2013, 08:16 AM   #10
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Quote:
Originally Posted by frdboy View Post
Without pulling a real code it is impossible to say but it could be the used buckle is bad or has a connection issue. To bad you are on the wrong side of the state. Really need to find someone with an IDS to see whats going on.
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On my 02 explorer, dunno how similar it is, i had the same code, there was a wire underneath the seat that had just gotten kicked too many times and needed to be replaced / soldered. It was apparently in an extremely common problem.
Going to the dealer Monday.

I have the car sold but this needs to be fixed before he picks it up.
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Old January 28th, 2013, 11:17 AM   #11
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Took it to the dealer this morning and they confirmed seat belt buckle. Salvage yard sent me the wrong one, $85 less in my pocket after this. But now I know what it is for sure.
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Old February 1st, 2013, 04:20 PM   #12
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I bought another seat belt buckle/pretensioner and still have a code 51.

I looked at the wires under the seat and they look ok.

The system had to be functional because the airbag and pretensioner went off in the crash.

Not a bad crash, the bumper reinforcement was bent in the middle but the rails were not damaged. I put a used one on and the rest of the damaged parts were replaced with parts from a 2002 except for the Airbag and seatbelt stuff.

It is possible the pretensioner is not the correct one. Any way to determine that? I will look for a part number on it and see what Ford says it should be.
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Old February 1st, 2013, 04:57 PM   #13
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I called the parts department at a ford dealership and they told me the part number should be 4F1Z 546 1203 AAB

I cannot find a part number on the other buckles that are anything similar.

I have two that do not seem to work or there is another problem.

Before I buy a third one I want to make sure the ones I have are indeed incorrect.
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Old February 1st, 2013, 06:00 PM   #14
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How many wires to the buckle? 4?

I have conflicting information on the ckt., the info says there is a Hall-effect switch inside the buckle but the wiring diagram shows just a simple switch that is either grounded or not based on if the belt is buckled or not.

Is the connector the same for the right side? Could you plug the left into the right and vice-versa and see if the code follows the buckle?

The Blk/Lt. Blue wire is the ground, G202, left A-pillar. I would check to make sure there is ground on that wire.
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Old February 4th, 2013, 03:48 PM   #15
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Quote:
Originally Posted by frdboy View Post
How many wires to the buckle? 4?

I have conflicting information on the ckt., the info says there is a Hall-effect switch inside the buckle but the wiring diagram shows just a simple switch that is either grounded or not based on if the belt is buckled or not.

Is the connector the same for the right side? Could you plug the left into the right and vice-versa and see if the code follows the buckle?

The Blk/Lt. Blue wire is the ground, G202, left A-pillar. I would check to make sure there is ground on that wire.
Will look into that. About to order a new buckle but would rather know for sure if that will fix it before I spend more money.

Thanks.
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Old February 6th, 2013, 09:45 AM   #16
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Yes, four wires in the connector. I have ground at the seat harness on the blk/orange wire. No ground at buckle end.

I ordered a new buckle but thought I would try to find an issue before I spend more money on this car.

Anything else I can check?
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Old February 6th, 2013, 02:04 PM   #17
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Got it figured out today. Very thankful for the sunshine.

I unplugged one of the connectors to the airbag module and noticed one of the pins on the module was feeling a bit lazy and laying down on the job. I went and grabbed a few motivational tools and straightened that little bugger out.

Without the sun shining just right not sure i would have seen that guy nappin on the job.

Sure I would have seen it with a flashlight but would I have been so motivated to go get one? We will never know but today was a good day.
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Old February 6th, 2013, 02:06 PM   #18
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On another note I feel the dealership I took the car to owes me a refund as all they did was look at the code and tell me what you guys helped me figure out. Had they actually checked the wires at the plug the diagnosis would have been different.

They only charged me 1 hour at $85/hr but that should cover for them to check the connector at the buckle, no?
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