"I fixed my front passenger's door lock module this weekend and found exactly the same thing wrong - pins#4 (blue) and 8 (red) were also cracked. Ironically, this lock module was actually working recently, but gave me problems for over a year a while back."
"I met up with a local Vortexer (melmandc) on 8-24-04 to fix his door lock module. Upon taking it apart, we found that the solder contacts that failed in my and other modules were perfectly fine. What failed instead was the microswitch in the mechanical portion of the module that detects if the door is open. It's the one marked by the read arrow below."
"A friend (Sebich1) was having similar DLM problems to mine, so we opened up his DLM today. Guess what we found. That's right, cracked solder joints, as expected."