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Door module repair and LMC5

 
Old 02-10-2019, 08:31 PM
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Robrote
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Default Door module repair and LMC5

Well, I got some work done this weekend. Sorry, no pictures. A few weeks ago I went to warm up the car to circulate the fluids and got the old 'pull key wait 10 seconds' message. Well, we're not going to play that game, so I ordered up the LMC5. Got it installed. Hardest part was unplugging the relay.

Next up was the drivers door module. Ever since I have had the car, when locking the doors with the fob, it was hit or miss whether the driver door unlocked or not. I did a little research on the forum and youtube and found the common issue are the relays inside the door modules. I ordered 4 relays from Digikey part number 255-1240-ND ($6.47).
I removed the door panel, of course the power window switch completly disintigrated in my hands. I ordered a new AC Delco switch. Removed the module and started soldering. It helps to have a friends assistance. A solder sucker is highly advisable. The biggest pain was removing the relays after the solder was removed. They used a gel like shmoo which held the relays in place. I ended up getting underneith the relays with a razor blade and carefully cutting through the shmoo. Once I did that. they came out easily. I beat the board up pretty bad trying to remove the first relay. My confidence level was low for any type of sucess. But, I got it plugged back in and tried the fob, and it worked! Better than it ever has actually. So I was happy with the repair. Cost me about 12 bucks for the relays and the solder sucker. Better than the 60-100 for a used one.

New visors and a new wiring pig tail for the outside temp sensor are next.
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Old 02-11-2019, 02:05 AM
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Vetteman Jack
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Nice to be able to do the work yourself - saves a bunch of cash. Good luck fixing the other items.
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Old 02-11-2019, 05:37 AM
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Nice work...
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