Originally Posted by DonL

Sorry for resurrecting an old thread, but I though the solution would be of interest. The seat recalibration instructions provided by irish07 worked fine, but I still had the warning light.
I recently purchased a "European" scanner with SRS capabilities, which identified the problem as "passenger seat side air bag" resistance value out of range, which I interpreted as a wiring issue. Despite efforts, I could not clear the warning light.
Fast forward a few weeks to the Jan. 19th AMOC track day at Thunderhill. Los Gatos AM brought two Astons for test drives, their portable AMDS laptop and their very capable tech Darryl. The AMDS identified the "driver seat side airbag" as the problem. He then configured the scanner to display four resistance values from both seats and then he proceeded to "tug and pull" on various connectors under the driver seat while I watched the offending resistance value. We were able to quickly locate the offending plug/connector (the two wire connector to the left of the multi-pin) and obtain a correct and stable resistance value. He then cleared the offending code and the SRS warning light has not been on since .

I have learned up a couple of important lessons from this experience:

• My "European" scanner is apparently for RHD vehicles, so passenger means driver here in the US. Much time lost looking in the wrong places.
• Darryl informed me that a single component fault anywhere in the SRS deactivates the entire system, not just the offending air-bag-I've been driving around for months with an inoperative safety system.
• In an attempt not to duplicate the event that caused the problem in the first place, I now use two floor jacks to raise the car evenly front to back, which in reality reduces the time needed to swap tires.

Thanks again to Los Gatos AM, Darryl and to irish07 for their help-it is very much appreciated!

Originally Posted by irish07

The radio won't lose the settings..it should keep it in memory.

Some ppl do this procedure by disconnecting the battery..for us techs it's ok because we can save and restore the ECM's misfire corrections..but without a AMDS..you would be clearing the misfire factors and need to do the looong step by step road test to complete a misfire correction drive cycle..with these setting cleared, vehicle would not detect a misfire even if you had open secondary winding in a coil..a V8V would be running on 7cyl and no check engine light..anyone with a V12, same thing goes for DB9/S..etc

Originally Posted by Christiaan0922

Hi Irish, your information is certainly always much appreciated, thank you!

I'm curious as to what all you refer to with the "looong step by step road test" to complete a misfire correction drive cycle? I had gone to a local smog station recently the day after I happened to disconnect my battery (via battery post cable) and was told by the smog guy I had a couple of sensors off-line (which he knew was due to battery being disconnected btw) and needed to put some additional miles on to get them back on line. So...a pleasant afternoon backroad 100 mile drive and then right back for my recheck got it all in order, all sensors on line, and smog checked ok.

I just received my new Autel 702 scanner yesterday but have still been too busy with work to get around to checking and resetting the still unexplained SRS airbag light. Am expecting it to reset without any problem as soon as I get around to it btw.

Thanks in advance
Chris

Originally Posted by irish07

The misfire correction monitor is not part of a smog test requirement. Yes it is a drive cycle but will not need to be completed to make sure the car is safe for the environment..you don't need to do a DMTL test in most states to pass a smog. BTW if the car is a 2009.5+, the misfire monitor will not be cleared with a battery hard reset, pre-2009.5 those settings are toast when the batt is removed. The tests you needed where the SAIR/EVAP/Catalyst Drive cycle, once those are done, the rest will complete..minus the misfire correction monitor