- The Hybrid 2004 Toyota Prius -
My MFD repair

( Sep/17/2008 )


* Update *

Oh well, after the 36 month warranty expired, I slowly started losing some
functions on the MFD ( Multi-Function Display ), like no air-conditioning
control, no audio control and no status screen with the nice rolling wheels.
It started on a really hot day in Los Angeles... Some of the mentioned
functions stopped working sporadically at first, than slowly all disappeared.
Mike at work pointed out, that this is a known issue and pointed me to
Hobbit's Techie-rants page. Based on his experience and guidance,
I embarked on fixing my MFD, thus saving over $700...


The Process :



Yeap, we have a problem...




Not Connected... Problem with the network access...




Ok, let's rip it out...




This sight gave me an adrenalin rush...
Can you "make it go" again?!




Definitely the old "problematic" model...




I took it apart and checked for connection problems on the TX- and TX+s...




I had sporadic connection problems when wiggling the connector, thus...




Re-soldered pin 59 and 60...




After putting Humpty-Dumpty together again, things looked promising...




Seems to work now, only time will tell... Big thanks for Mr.Kutner and the excellent Hobbit!


As of 31/Oct/2008 it is still working...

...however...

As of 17/Jul/2009, it stopped working...

So, let's investigate... AGAIN! *sigh*



This time even after resoldering the above points I got the same connection errors!
So, the problem must be somewhere else ( as well )...




So, this time I had to remove the other board as well and inspected the connections.
When I moved the two boards, the connection came and went...
Traced it, traced it, there was no problem on the board itself...
Thus, I re-soldered the 59/60 connector pins here too...
What do you think happened?! Solid connection again...




This time I covered the pins with hot glue,
hoping that the extra insulation may slow down the board degradation.


Ain't this fun?! Thank you Mr.Fujitsu and Mr.Toyota "I-am-not-fixing-this-because-you-are-Out-Of-Warranty"!!! :-)


As of 15/Aug/2009 it is working again...





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