seatbelt pretensioner - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 08-02-2008
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seatbelt pretensioner

Ive been flashing a 47 airbag code which i believe to indicate a problem with the passenger seat belt pretensioner. My first plan of action is to check out the connection and throw some dialectic grease in there. What/where is the seatbelt pretensioner? Im assuming its in the rear passenger door, but just wanted to make sure before i tear the panel off to go looking for it.

thanks

Lee
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Old 08-03-2008
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A 4-7 code is resistance in the driver seat pretentioner. Clean up the seat electrical connections, use dialectic grease on the terminals.

The pretentioner is mounted on the seat frame, infact your female belt bucket is attached to it. I'm lookin' for my pics, and a comparo shot between a "triggered" pretentioner and a good pretentioner. You need to remove the seats to access it, or remove the centerconsole(mabybe)...might as well remove the seats. BUt if your just doin' the dialetic grease your ok for no removal...the plug is located on the rear of the seat bottom.

What it does, as i understand it, is when it is triggered during an air-bag deployment, and it clinches down on the seat belt. the female seat belt end is built into the tensioner, and when it goes off, that female end is about half as tall.


Last edited by Fx4wannabe01; 08-03-2008 at 06:13 AM.
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Old 08-03-2008
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thanks. that's interesting, i never knew that happened during a crash.

Lee
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Old 08-03-2008
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What year did this come into play?
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Old 08-03-2008
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Not sure what year they started putting them in Ranger's but they have been around for quite some time. You see that little cable on the bottom. it is hooked the seatbelt buckle. That little metal piece with the wire is an explosive charge that pushes piston into that black cylinder. The cable is attached to the piston and therefore pulls the seatbelt buckle down, tightening your seat belt.

Here is a video. http://www.youtube.com/watch?v=rT1YWa9nJLE
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Old 08-03-2008
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Pretty cool seeing a video of it. I found mine today doing a 40/40 mod. I never knew those existed or did that.
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Old 08-04-2008
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2001 was the first year for rangers. 04 i believe they changed the style...but maybe it's just the electrical plug...i'll try and get a pic of a "triggered" one here this afternoon.
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