[Diy_efi] Reset ECM after replacing airbag?

[Wop OnTour]

LOL
I wouldnt try this if I were you! Talk about a "smoke show"!! I think he 
meant to say disconnect BOTH cables and touch them together- but that wont 
work anyways.

Part of the event recorder memory features within the DERM require/demand a 
UART command for DTC clearing- so scan tool only. AFAIK on the older DERM 
systems you could still clear a DTC51 (crash event detected) after replacing 
the discriminating and arming sensors of course. The worst case scenario 
would be a DTC52 - DATA AREA FULL which means that DERM has experienced 8 
seperate crash events (unlucky??) and the event data recorder memory (aka 
black box) memory is FULL. In that event the DERM will need to be replaced. 
This differs from the later SDM based systems that require replacement after 
EVERY event, but it is for the same reason- FULL EVENT DATA FILE. Because 
there is SO MUCH more data in the SDM event file (512bytes) it can only have 
room for ONE event and must be replaced (although it quite likely is capable 
of deploying the airbags this B0051 is "latched" and cannot be cleared.

Good Luck
WOT
>From: "Bobby Morgan" <rosankyauto at austin.rr.com>
>Reply-To: diy_efi at diy-efi.org
>To: <diy_efi at diy-efi.org>
>Subject: RE: [Diy_efi] Reset ECM after replacing airbag?
>Date: Wed, 13 Apr 2005 06:35:34 -0500
>
>Try disconnecting the battery negative cable and touching it to and holding
>it on the positive post.  This should discharge all stored data.
>
>
>
>   _____
>
>From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org] On
>Behalf Of David Cooley
>Sent: Tuesday, April 12, 2005 9:20 PM
>To: diy_efi at diy-efi.org
>Subject: RE: [Diy_efi] Reset ECM after replacing airbag?
>
>
>
>you need a scan tool to reset the SRS controller.
>
>it will not erase by disconnecting power etc.
>
>
>
>
>
>
>   _____
>
>
>From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org] On
>Behalf Of Ken
>Sent: Tuesday, April 12, 2005 9:43 PM
>To: diy_efi at diy-efi.org
>Subject: [Diy_efi] Reset ECM after replacing airbag?
>
>
>
>I recently restored and completely rebuilt my 93 Vette including a custom
>engine.  I ended up doing the ECM tuning myself after giving up on Ed 
>Wright
>to get it right.  After that I got the car repainted and actually got to
>drive it for about a month in pristine condition before a farmer in a 
>pickup
>took the front end off the car.
>
>To make a long story short, the airbag deployed during the collision.  I
>have since repaired the car and replaced the airbag and coil with a new 
>one.
>I disconnected the power to the ECM hoping that would get rid of the
>annoying INFL REST light on the information display but that did not work.
>When you first start the car it blinks a few times and then stops blinking
>and just stays on all the time.
>
>Does anyone know how to get rid of the pesky INFL REST light now that the
>airbag has been replaced. other than by removing the bulb?
>
>
>
>Thanks!
>
>Ken
>
>
>
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