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post #51 of 56 (permalink) Old 03-04-2018, 04:15 PM
 
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Yes. On the 450, the bad circuits are for the electric lift pump for the diesel and also the headlights. Dropping the SAM, if not disconnecting it completely, helps because then you can see whether there is heat damage on the pins as well as the connector blocks.

The other thing I did is run a wire directly from the battery - with an inline fuse - to power the external relays, because the conventional approach is to use the SAM to get bulk power to the external relays, which to me seems to be asking for the same problem to occur on a different SAM circuit!
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post #52 of 56 (permalink) Old 03-13-2018, 06:41 AM
 
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Update (03/13/2018):

I purchased a SAM for $100, out of 2011 Passion, 23k. miles, was a vandalized theft recovery...

So, carefully split case, gently unfolded PCB, & microscoped all solder connects for 'standing' components on both board surfaces.

Surprisingly, all joints were 100% good, & wave solder flow @ SMD's was even, no oxidation evident.

Then, vapor degrease cleaned boards, masked 'Plug' connects & sprayed conformal coat to insulate & seal, bake 20min to set & make PCB waterproof...

Plan to swap out my '08 SAM, & perhaps gain some peace of mind
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post #53 of 56 (permalink) Old 03-13-2018, 07:47 AM
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Quote:
Originally Posted by Sigak View Post
Update (03/13/2018):

I purchased a SAM for $100, out of 2011 Passion, 23k. miles, was a vandalized theft recovery...

So, carefully split case, gently unfolded PCB, & microscoped all solder connects for 'standing' components on both board surfaces.

Surprisingly, all joints were 100% good, & wave solder flow @ SMD's was even, no oxidation evident.

Then, vapor degrease cleaned boards, masked 'Plug' connects & sprayed conformal coat to insulate & seal, bake 20min to set & make PCB waterproof...

Plan to swap out my '08 SAM, & perhaps gain some peace of mind
What does your 08' SAM look like? I know it's a small sample size (2) but it would be interesting to see if your 08's solders are any different than the 11's.
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post #54 of 56 (permalink) Old 03-13-2018, 08:39 AM
 
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Wish I knew. Hope to swap soon, & get a read on 08's SAM insides, Perhaps a great idea would be to commence gathering data here, & create a SAM Year/Condition catalog, right?
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post #55 of 56 (permalink) Old 03-23-2018, 11:04 PM Thread Starter
 
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Here is an update: on April 18th MB and State Farm will meet where the car is located to investigate and try to determine the cause of the fire.
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post #56 of 56 (permalink) Old 05-11-2018, 10:07 AM
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Alsrac - any further news from MB and State Farm?
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