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Old 02 Jul 2011, 08:09 am
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Default 1999 Accord AC problem resolved

The AC and lights have been turning off for the past couple of months and it finally stopped the ac completely. To add insult to injury, the heat turned itself on in the middle of the Summer.

I found information somewhere on internet message boards that a guy fixed this problem by re-soldering area's on the AC control Unit circuit board. Well it worked! I would hesistate to advise anyone to do this unless they were REAL comfortable with accurate soldering.
Once the pcc was removed I looked at both sides under high magnification and could not see any solder cracks. There were lots of surface mount ic's that need to be avoided so that left mechanical induced cracks or heat induced cracks. I resoldered all area's which held the connectors and then resoldered area's with power resisters and diodes. Both of these are larger area's so it wasn't a problem.

The pcc can be connected without installing all the plastic housings to verify operation.

I did have a problem with the emergency flasher connector though. The spring which pushes the button back out goes flying when plug is removed from the back of the switch. God knows where it is now. To fix it I took an ink pen spring, shortened it by 3/8 inch, put it in place and locked the connector together. Works good!

Hope this information helps someone with a similar problem.
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