TSB info for Ford E150 Air bag module

Joshua Mechanic North Carolina Posted   Latest  
Unsolved
Safety
1999 Ford E-150 Econoline 4.6L (6) 4-spd (4R70W)
B1915
B1920
B1876
B1880
Tsb 06-21-18

I've got an old conversion van that had an airbag module/ecs module failure. There is a TSB(06-21-18) for this module failure stating that with the new module an ECS module circuit protection improvement kit should be installed to prevent this from occuring again. Part number: 2C2Z-14S411-AA. The part number is obsolete. None in stock anywhere i can find. My local dealer and google were not able to provide any pictures. Does anyone have any info on this kit? is it just better grounding for the module? Shielding?. Is it something i can make? This van is fairly low mileage, but will be used more frequently now. I don't want this to come back in a few months with another dead module. We are using a salvage yard module, so this one is probably prone to failure as well. Thanks!

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Bruce Owner/Technician
Massachusetts
Bruce
   

Module failure is due to transient voltage spikes, typically caused by aftermarket conversion equipment such as wheelchair lifts.

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Bruce Owner/Technician
Massachusetts
Bruce
   

Evidently an issue with conversion/modified vans. madocumentupload​.​marketingassociates​.​com/api/Document/G… Perhaps you could reach out to Ford QVM on this? fleet​.​ford​.​com/showroom/speci… Found some phone contacts: fordbbas​.​com/truckSupport

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Joshua Mechanic
North Carolina
Joshua
 

I called an left a message….hopefully i get a phone call back….

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Joshua Service Manager
North Carolina
Joshua
 

Got an email back this morning: Josh, Thank you for your question. Unfortunately this part is so old that we have no records of it. Here is the text from the TSB. If the vehicle is not displaying a problem then you really do not have to make any modification. Translates to “I don't care” in my opinion.

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Jake Technician
Vermont
Jake
 

Is this van equipped with anything that draws excessive current? I ask because that was a qualifier for the modification way back when. Does it have a history of this? At 22 years old, I wouldn't rule out a simple, honest part failure.

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Joshua Service Manager
North Carolina
Joshua
 

It has a ton of speakers and 2 tvs. Plus a bunch of lights. I agree it might be just a module failure. Just trying to cover all my bases to keep it from happening again

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Bruce Owner/Technician
Massachusetts
Bruce
 

Found this online, has some info about isolating inductive loads and high current aftermarket devices that can high reverse voltage transients when powered off: "All electrical devices that have inductive loads (i.e. electrical motors, relay coils, PTO clutch pump clutches, etc.) must be provided with isolation discharge paths for the reverse voltage generated when power is disconnected from…

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