Here's an article that discusses the electronics aspects http://www.msnbc.msn.com/id/35110966/ns/business-autos//

Bob

-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Nigel Burtt
Sent: Monday, February 01, 2010 11:00 AM
To: [log in to unmask]
Subject: Re: [LF] Perfect opportunity for tin whiskers induced failures - Toyota did not install brake override systems despite complaints

How Toyota Will Fix Recalled Vehicles
 
Toyota has pinpointed the issue that could, on rare occasions, cause accelerator pedals in recalled vehicles to stick in a partially open position.  
The issue involves a friction device in the pedal designed to provide the proper “feel” by adding resistance and making the pedal steady and stable.  
The device includes a shoe that rubs against an adjoining surface during normal pedal operation.  Due to the materials used, wear and environmental conditions, these surfaces may, over time, begin to stick and release instead of operating smoothly.  In some cases, friction could increase to a point that the pedal is slow to return to the idle position or, in rare cases, the pedal sticks, leaving the throttle partially open.
 
Toyota’s solution for current owners is both effective and simple.  A precision- cut steel reinforcement bar will be installed into the assembly that will reduce the surface tension between the friction shoe and the adjoining surface.  With this reinforcement in place, the excess friction that can cause the pedal to stick is eliminated.  The company has confirmed the effectiveness of the newly reinforced pedals through rigorous testing on pedal assemblies that had previously shown a tendency to stick. 
 
Separately from the recall for sticking accelerator pedals, Toyota is in the process of recalling vehicles to address rare instances in which floor mats have trapped the accelerator pedal in certain Toyota and Lexus models (announced November 25, 2009), and is already notifying customers about how it will fix this issue.  In the case of vehicles covered by both recalls, it is Toyota’s intention to remedy both at the same time.


.... sorry guys but how is this related to tin-whisker induced failures??
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Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
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