Air Bag Control Unit

[Twitch de la Brat]

I'm tearing apart my 94 lego, and I have come upon an issue.

The air bag control unit sits in a really bad spot, and I need to unplug it and

remove it.

Are there any precautions I need to take before removing it?

Will it set itself off if I unplug the connectors in the wrong order?

What size it the security torx head that I need so as to remove the bolts

holding the unit down?

Anything else I need to know?

 

Twitch

[idosubaru]

Disconnect the battery (though I've done it without, but that's quite stupid on a system that has explosive charges associated with it).

 

Torx bits vary by vehicle, so there's no "one size fits all here", though T-30's and T40's seem to be the rule for air bags controllers I've done. Last one I did (97 impreza was a T30). On some legacy's (late model im' referring too) there's two sets to remove - a large set holding the bracket and unit and a smaller set holding just the unit to the bracket. If yours is like this, remove the unit, not the bracket, those larger ones are REALLY tight and will break bits.

 

The connectors are INSANE. They require about 14 years of higher education, 34 text books, and a shrink to figure out. So good luck with that.

 

On late model stuff there's a small tab to lift up while pressing the rest down...all while pulling OUT...in a very tight space. FIguring out what to lift and what to press and when to pull is annoying.

 

What made it easier for me is I have parts cars to hack up, and it was still pain.

 

From what I've seen their idea to make this hard to remove has actually been counter intuitive and makes the units MORE dangerous because the connectors are usually damaged due to being so difficult to remove.