Question about 1999 Buick Park Avenue
Can't find the fuse box in my buick park avenue ultra / 1999
Posted by Anonymous on
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Posted on Jan 02, 2017
I just accessed mine. It is under the rear seat. You just lift up on the seat, and it pops right out. If you are having problems with the rear defroster, it could very likely be the control module. This is a combination module which the rear antenna, and the defroster grid plugs in to.
When mine went out I smelled a "burnt wire" smell, then it went out.
To access the module, sit in the back seat, drivers side. There is a trim panel that will be by your left ear as you are looking forward. It is the panel that flares down from the ceiling to the rear deck. Gently pull at the edge of this panel, working around the edges, and the small strip which continues over the top of the door.
The seatbelt goes through this panel, so it will be hanging from the seatbelt at this point. There is a ~3" square, black module with the defroster input and output wires, and the antenna wire plugged into it.
You just unplug the wires, pull the one mounting screw, and voila!
On mine the module was obviously melted, as was the wire going into it. I got the replacement from a salvage yard, as the new one was over $50, and the replacement wire was $18. The salvage yard was unable to look it up, so I had to go out to the yard with them and pull it myself. The final cost was $17 (they tried to charge me $40, and I told them I could get it online for that, and they dropped the price).
You can use a crimp on **** connector to put in the replacement wire, but because of the heat in that area I chose to solder the wires together.
BTW, this module fits a wide range of Buicks, and full size Olds.
Hope this helps.
Posted on Jan 20, 2009
Posted on Dec 09, 2009
The code PO742 indicates the torque converter clutch is stuck on.
The torque converter is what connects the engine to the transmission.
It engages and disengages according to signals from the pcm, to aid in
smooth shifting. There are a couple of things you can try. make sure trans. fluid is full, if thats ok check the 20 pin connector, located on left
side of car on top of transmission bell housing. Make sure there's no
corrosion or bent pins. If this clears the code your all set, if not you may
want to ask your mechanic and see what he/she recomends.
Hope this helps.
Posted on Jan 19, 2010
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