Air bag code 33
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Cargo Master
Joined: May 2001
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Air bag code 33
I have an air bag code 33. 2001 Ranger. This is a circuit fault in the drivers pretensioner. I have unplugged and plugged the connector under the seat numerous times. Still have the code. The wire from the connector to the tensioner canister has a connection at the canister. My question is does this connection just plug in into the canister or is it a permanent connection. Can't really tell by looking.
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From: SW Va
It shows a electrical connector here http://www.revbase.com/BBBMotor/Wd/D...Pdf?id=1122993 Let us know what you find.
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Cargo Master
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Well Pawpaw this where it gets interesting the lfc is 33 but there is no b1933 code to go with it. The b codes I have are b1885 b1877 and b1881. All pointing to seat belt pretensioners. I cleared the codes yesterday I will pull again to see what is there now.
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From: SW Va
There are a number of TSB's on the SRS system having high resistance & throwing the 1881 code, here Technical Service Bulletins Search Results
I'd have a real good look at the ground connection/s & connector/s on this system for corrosion/loose fit, ect as has previously been suggested.
I'd have a real good look at the ground connection/s & connector/s on this system for corrosion/loose fit, ect as has previously been suggested.
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From: SW Va
Have a look see on this Ford Tech's web site for really good trouble shooting info on Fords.
For instance, here is a link to his SRS code 33 trouble shoot that sounds like some of the codes you have.
, so what is your tensioner system resistance now measuring & if your scan tool will show live resistance feeds, what happens if you wiggle the wiring, or the electrical connector, or unplug & reconnect it.
For instance if as he shows, the resistance is above the programmed 2.4 ohms, the system is programmed to set a fault code & it doesn't take much contact corrosion/fretting, to cause a problem in this system.
In the TSB link I posted, Ford lists a product you can buy to spray clean those contacts & a lube to also use to help. May not be a final solution as he points out, but maybe good enough for now. More thoughts for consideration. Let us know how it goes.
For instance, here is a link to his SRS code 33 trouble shoot that sounds like some of the codes you have.
For instance if as he shows, the resistance is above the programmed 2.4 ohms, the system is programmed to set a fault code & it doesn't take much contact corrosion/fretting, to cause a problem in this system.
In the TSB link I posted, Ford lists a product you can buy to spray clean those contacts & a lube to also use to help. May not be a final solution as he points out, but maybe good enough for now. More thoughts for consideration. Let us know how it goes.
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Cargo Master
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Ok pawpaw some feed back. This truck has had an airbag event. The passenger air bag has been replaced. Whom ever replaced it with a four wire unit and the original was a two wire they wire the ground pink/black to the wrong wire on the airbag. I fixed that put it back togather crossed my fingers and hooked the battery up then turned the key on. It didn't blow up and the code 33 is gone. Now it shows a code 46. I need to check and see it the pretensioners have been blown. The drivers airbag has also been replace the cover is the wrong color.
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From: SW Va
Ok that's a good find & feedback to know the vehicle has had a airbag event. Who knows what was previously done, so I don't envy your trouble shoot.
On the code 46, have a look in the 04-2-4 TSB link I posted, for the drivers side under seat electrical connector contact fretting & try cleaning & the pins/sockets with the prescribed tidy up & contact grease products & taping up the harness & connector as shown, on Both seats & let us know how it goes.
On the code 46, have a look in the 04-2-4 TSB link I posted, for the drivers side under seat electrical connector contact fretting & try cleaning & the pins/sockets with the prescribed tidy up & contact grease products & taping up the harness & connector as shown, on Both seats & let us know how it goes.
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Cargo Master
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Ok I have the drivers seat out. the pretensioner that is in it is not blown. Probably been replaced. I checked the continuity from pins 18 and 22 to the under seat connector the continuity is good. Not sure how to check the continuity from connector to the pretensioner there is a plastic tab the covers the solder joints at the pretensioner. I think it would be safe to check the continuity from red to red and blue to blue just as long as you don't complete a circuit through the ignitor. Just a little goosey about putting electricity near the ignitor. I wonder if i could put a 1-2 ohm resistor across the other connector coming from the rcm and see if the code goes away. I had the pretensioner connector apart it all looked good and clean and solid.
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From: SW Va
Do you have a ELM scan tool, or access to another like one that can read the live SRS tensioner system resistance, if so have it take a look at the resistance PID under operating conditions & see what it suggests. Doesn't take much to set the code, just a couple of ohms increase above the 2.4 figure will upset the computer & set a code & fretting corrosion, that can be really hard to see, is enough to do it!!! EDIT: The problem is frequent enough for Ford to issue TSB's to fix it.
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From: SW Va
You could try disconnecting & reconnecting the drivers side seat electrical connector a few times to see if the code will clear & if it does, disconnect again & clean with the Deoxit, apply the specified grease, reconnect & tape the connector & reroute it as called out in the TSB. As the TSB suggests, do the passenger side too, while your at it.
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Cargo Master
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Ok soldered and put dielectric grease on both sides put it back to gather. Powered system up got a code 32. That's the drivers air bag. Took that out and it had been replaced with one that apparently the connector didn't match. They had spliced the leads with crimp connectors. Removed and soldered and shrink tubed the splice put it back togather powered up now it have the code 46 back. These codes do come in by priority low numbers first. So why the 32 showed up today I don't know. So back to my hunt on the code 46.
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From: SW Va
Good grief your right, some one that didn't understand the system sure did a hack replacement job. Stay calm & keep knocking the problems down one at a time & you'll likely soon have complete success.
The 32 showing up again may have been because the under seat connector wasn't cleaned, or greased properly. Did you use the specified DeoxIt & grease products as spcified?
The 32 showing up again may have been because the under seat connector wasn't cleaned, or greased properly. Did you use the specified DeoxIt & grease products as spcified?