Help please: Airbags removed, now what about SRS Control Unit? See pics... - LotusTalk

Frank Amoroso · 08-19-2008, 08:56 AM

Greetings all,

I have removed my driver's side airbag by virtue of going with S111s Works Bell removable steering wheel hub. I've also disassembled the dash and removed the passenger side airbag while I was at it. See first pic below.

The Works Bell comes with a 2 ohm resistor to wire in-line that fools the SRS system from throwing a fault code. I assume I can just wire another 2 ohm resistor in place to fool the SRS system as it pertains to the passenger side airbag.

Here are my questions though: Can I also remove the SRS Unit (part number A121B0060F, see second pic below)? It would be great to remove this piece seeing as how I don't have any airbags to deploy anymore. If I remove this piece, will its absence throw an SRS fault code / light? If not, then I assume that I could remove it and I wouldn't need to wire in the aforementioned 2 ohm resistors?

THANKS!

charliex · 08-19-2008, 09:36 AM

don't see any obvious reasons in the circuit diagram as to why it can't be removed, the resistors would be connected to the srs unit, so they wouldn't be needed, and you shoulnd't get a warning light either.

xtn · 08-19-2008, 11:55 AM

subscribed...

Please update with results.

xtn

fzust · 08-19-2008, 01:21 PM

I removed mine and did not get an ABS light. Can't remember if I got an airbag light or not. Then I removed the Dash and the ECU so the point was mute.

charliex · 08-19-2008, 01:24 PM

i did the opposite of fred and didn't get a warning light ( removed the car, left the dash and ecu)

TimMullen · 08-19-2008, 03:50 PM

In case you didn't know, the SRS unit also "fires" the seat belt pre-tensioners (tightens the seat belts in a wreck).

If you remove the SRS processor, you loose that capability. Of course if you remove the seat belts, and replace them with harnesses, it's not a problem either...

Simba · 08-19-2008, 04:27 PM

If you want your tensioners to work, keep the computer and snip the SRS warning light lead on the cluster harness.

Frank Amoroso · 08-19-2008, 11:17 PM

Quote:

Originally Posted by Simba

If you want your tensioners to work, keep the computer and snip the SRS warning light lead on the cluster harness.

Actually, seeing as how the stock seat belts work with the Mulsanne Cs, I'm keeping them for street use. Do you know which is the warning light lead in the cluster harness? I don't plan on snipping it, but I would pull the electrical connector out of the "molex" connector.

Thanks,

charliex · 08-19-2008, 11:31 PM

should be black and purple.

08-19-2008, 08:56 AM	#1 (permalink)
Frank Amoroso Registered User Join Date: Mar 2006 Location: Boulder. CO Posts: 271	Help please: Airbags removed, now what about SRS Control Unit? See pics... Greetings all, I have removed my driver's side airbag by virtue of going with S111s Works Bell removable steering wheel hub. I've also disassembled the dash and removed the passenger side airbag while I was at it. See first pic below. The Works Bell comes with a 2 ohm resistor to wire in-line that fools the SRS system from throwing a fault code. I assume I can just wire another 2 ohm resistor in place to fool the SRS system as it pertains to the passenger side airbag. Here are my questions though: Can I also remove the SRS Unit (part number A121B0060F, see second pic below)? It would be great to remove this piece seeing as how I don't have any airbags to deploy anymore. If I remove this piece, will its absence throw an SRS fault code / light? If not, then I assume that I could remove it and I wouldn't need to wire in the aforementioned 2 ohm resistors? THANKS! Attached Images __________________ Frank Amoroso Whatever Press Vehicle(s) I'm driving this week 2005 Elise GG / black Ever take a risk? A real risk? The kind of risk that makes you feel alive? It's... spectacular, isn't it?

08-19-2008, 09:36 AM	#2 (permalink)
charliex disproving HD MTBF daily Join Date: Feb 2005 Location: Las Vegas , NV Posts: 8,283	don't see any obvious reasons in the circuit diagram as to why it can't be removed, the resistors would be connected to the srs unit, so they wouldn't be needed, and you shoulnd't get a warning light either. __________________ Black Exige S - http://goth.am 265 Mule / Elan M100 ECU Tuning, http://www.elisetalk.com/forums/showthread.php?t=39660 Arguing with an engineer is like wrestling with a pig in mud. After a while, you realise the pig is enjoying it.

08-19-2008, 11:55 AM	#3 (permalink)
xtn McLareghini Bugatterrari Join Date: May 2006 Location: Texas Posts: 5,845	subscribed... Please update with results. xtn __________________ 2006 McLareghini Bugatterrari, Storm Titanium... <mods> installed: air horn, Scroth 4-point ASM harnesses, Sector111 halon extinguisher and mounting bracket, Von Hep exhaust and rear panel delete, Pagid brake pads, red Volks CE28n wheels, Toyo RA-1 tires, Nitron SA coilovers, Sector111 (WorksBell) quick-disconnect steering wheel kit. awaiting installation: Scroth "pull-up" lap belts, Sector111 RTD Brace, Tony's heater bypass mod, and dropped steering rack mounting plates. </mods>

08-19-2008, 01:21 PM	#4 (permalink)
fzust 2008 XP National Champion Join Date: Oct 2003 Location: Tempe, AZ Posts: 1,169	I removed mine and did not get an ABS light. Can't remember if I got an airbag light or not. Then I removed the Dash and the ECU so the point was mute. __________________ 2008 X Prepared Solo National Champion

08-19-2008, 01:24 PM	#5 (permalink)
charliex disproving HD MTBF daily Join Date: Feb 2005 Location: Las Vegas , NV Posts: 8,283	i did the opposite of fred and didn't get a warning light ( removed the car, left the dash and ecu) __________________ Black Exige S - http://goth.am 265 Mule / Elan M100 ECU Tuning, http://www.elisetalk.com/forums/showthread.php?t=39660 Arguing with an engineer is like wrestling with a pig in mud. After a while, you realise the pig is enjoying it.

08-19-2008, 03:50 PM	#6 (permalink)
TimMullen Moderator Join Date: Jun 2003 Location: Chantilly, VA Posts: 10,688 Images: 19	In case you didn't know, the SRS unit also "fires" the seat belt pre-tensioners (tightens the seat belts in a wreck). If you remove the SRS processor, you loose that capability. Of course if you remove the seat belts, and replace them with harnesses, it's not a problem either... __________________ Tim Mullen --- There is no such thing as Touring suspension or Touring wheels. I love being married. It's so great to find that one person that you want to annoy for the rest of your life. - Rita Rudner Chantilly, VA http://members.cox.net/elans4/ 05 Lotus Elise - Chrome Orange - No Touring - No LSS - No Hardtop - Lotus Driving Lights - Lotus "Chin Guards" - plain and simple. 94 Miata R Package - Black 72 Lotus Elan Sprint - Colorado Orange/Cirrus White

08-19-2008, 04:27 PM	#7 (permalink)
Simba 2/3 hp to the paws. Join Date: Jan 2008 Location: NY Posts: 106	If you want your tensioners to work, keep the computer and snip the SRS warning light lead on the cluster harness.

08-19-2008, 11:31 PM	#9 (permalink)
charliex disproving HD MTBF daily Join Date: Feb 2005 Location: Las Vegas , NV Posts: 8,283	should be black and purple. __________________ Black Exige S - http://goth.am 265 Mule / Elan M100 ECU Tuning, http://www.elisetalk.com/forums/showthread.php?t=39660 Arguing with an engineer is like wrestling with a pig in mud. After a while, you realise the pig is enjoying it.

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