Guys, just wanted to drop a note on "fixing" a '91 SRS unit that's gone south like mine did. I had leaky caps, burnt traces, etc. It was a mess.
I know some guys have either ordered new NSX units from Honda for like $700 (although looks like they're actually not even available anymore?), or sent theirs off to get repaired - which probably cost close to a couple hundo and may or may not have worked. Good news is, your unit has the EXACT same guts as the SRS out of the '91-93 Acura Legend - and you can find those units in perfect shape on eBay for $20-$30 shipped. Only thing different is the case - so just pop them open and swap out the circuit boards. It's literally just a couple screws. Part number is 77960-SL0-A82 or 77960-SP0-A82.
This guy has an awesome write-up on how to get your SRS unit out in the first place. http://sarasotadetail.com/gallery2/d...dfc04bc0e9aab2
I'll add just 1 note to it:
- There are 4 Torx screws that hold the SRS unit in the car, and they're held in there very snugly with Locktite. The ONLY way to get them out without stripping the heads of the Torx screws is to apply heat. I used a butane torch like you would use to sweat copper pipe. If you have a butane jet lighter, that'd probably work too. There will be some wires/carpet in the vicinity, but if you're paying attention to what you're doing, you'll be just fine. I strongly recommend that you use a Torx screwdriver instead of a wrench so that it limits the amount of torque you can put on the bolt. That'll tell you whether you've applied enough heat. If you use the wrench, I can almost guarantee you'll strip it.
Hope this saves you guys a couple bucks/hours. Always nice to clear a light off the dash. Oh yeah, and your airbag(s) will work too.
-JP
I know some guys have either ordered new NSX units from Honda for like $700 (although looks like they're actually not even available anymore?), or sent theirs off to get repaired - which probably cost close to a couple hundo and may or may not have worked. Good news is, your unit has the EXACT same guts as the SRS out of the '91-93 Acura Legend - and you can find those units in perfect shape on eBay for $20-$30 shipped. Only thing different is the case - so just pop them open and swap out the circuit boards. It's literally just a couple screws. Part number is 77960-SL0-A82 or 77960-SP0-A82.
This guy has an awesome write-up on how to get your SRS unit out in the first place. http://sarasotadetail.com/gallery2/d...dfc04bc0e9aab2
I'll add just 1 note to it:
- There are 4 Torx screws that hold the SRS unit in the car, and they're held in there very snugly with Locktite. The ONLY way to get them out without stripping the heads of the Torx screws is to apply heat. I used a butane torch like you would use to sweat copper pipe. If you have a butane jet lighter, that'd probably work too. There will be some wires/carpet in the vicinity, but if you're paying attention to what you're doing, you'll be just fine. I strongly recommend that you use a Torx screwdriver instead of a wrench so that it limits the amount of torque you can put on the bolt. That'll tell you whether you've applied enough heat. If you use the wrench, I can almost guarantee you'll strip it.
Hope this saves you guys a couple bucks/hours. Always nice to clear a light off the dash. Oh yeah, and your airbag(s) will work too.
-JP
